95ZJ_8W.PDF

WIRING DIAGRAMSCONTENTS

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8W-01 GENERAL INFORMATION - WIRINGDIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . 8W-01-1

8W-10 FUSE BLOCK . . . . . . . . . . . . . . . . . 8W-10-18W-11 POWER DISTRIBUTION . . . . . . . . 8W-11-18W-15 GROUND DISTRIBUTION . . . . . . . 8W-15-18W-20 CHARGING SYSTEM . . . . . . . . . . . 8W-20-18W-21 STARTING SYSTEM . . . . . . . . . . . 8W-21-18W-30 FUEL/IGNITION . . . . . . . . . . . . . . . 8W-30-18W-31 TRANSMISSION COLTROLS . . . . . 8W-31-18W-32 ANTI-LOCK BRAKES . . . . . . . . . . . 8W-32-18W-33 VEHICLE SPEED CONTROL . . . . . 8W-33-18W-39 VEHICLE THEFT ALARM . . . . . . . . 8W-39-18W-40 GAUGES . . . . . . . . . . . . . . . . . . . . 8W-40-18W-41 HORN/CIGAR LIGHTER . . . . . . . . . 8W-41-18W-42 AIR CONDITIONING . . . . . . . . . . . 8W-42-18W-43 AIRBAG SYSTEM . . . . . . . . . . . . . 8W-43-18W-44 INTERIOR LIGHTING . . . . . . . . . . . 8W-44-18W-46 MESSAGE CENTER . . . . . . . . . . . . 8W-46-1

8W-47 AUDIO SYSTEM . . . . . . . . . . . . . . 8W-47-18W-48 HEATED REAR WINDOW . . . . . . . 8W-48-18W-49 OVERHEAD CONSOLE . . . . . . . . . . 8W-49-18W-50 FRONT LIGHTING . . . . . . . . . . . . . 8W-50-18W-51 REAR LIGHTING . . . . . . . . . . . . . . 8W-51-18W-52 TURN SIGNALS . . . . . . . . . . . . . . . 8W-52-18W-53 WIPERS . . . . . . . . . . . . . . . . . . . . . 8W-53-18W-54 TRAILER TOW . . . . . . . . . . . . . . . . 8W-54-18W-60 POWER WINDOWS . . . . . . . . . . . . 8W-60-18W-61 POWER DOOR LOCKS . . . . . . . . . 8W-61-18W-62 POWER MIRRORS . . . . . . . . . . . . 8W-62-18W-63 POWER SEAT . . . . . . . . . . . . . . . . 8W-63-18W-64 POWER SUNROOF . . . . . . . . . . . . 8W-64-18W-70 SPLICE INFORMATION . . . . . . . . . 8W-70-18W-80 CONNECTOR PIN OUTS . . . . . . . . 8W-80-18W-90 CONNECTOR LOCATIONS . . . . . . . 8W-90-18W-95 SPLICE LOCATIONS . . . . . . . . . . . 8W-95-1

HOW TO USE THIS GROUPThe purpose of this group is to show the electrical

circuits in a clear, simple fashion and to maketroubleshooting easier. Components that work to-gether are shown together. All electrical componentsused in a specific system are shown on one diagram.The feed for a system is shown at the top of the page.All wires, connectors, splices, and components areshown in the flow of current to the bottom of thepage. Wiring which is not part of the circuit repre-sented is referenced to another page/section, wherethe complete circuit is shown. In addition, allswitches, components, and modules are shown in theat rest position with the doors closed and thekey removed from the ignition.

If a component is part of several different circuits, itis shown in the diagram for each. For example, theheadlamp switch is the main part of the exteriorlighting, but it also affects the interior lighting andthe chime warning system.

It is important to realize that no attempt ismade on the diagrams to represent componentsand wiring as they appear on the vehicle. Forexample, a short piece of wire is treated thesame as a long one. In addition, switches andother components are shown as simply as pos-sible, with regard to function only.

The wiring diagram show circuits for all wheel-bases. If there is a difference in systems or compo-nents between wheel-bases, an identifier is placednext to the component.

SECTION IDENTIFICATIONSections in Group 8W are organized by sub-sys-

tems. The sections contain circuit operation descrip-tions, helpful information, and system diagrams. Theintention is to organize information by system, consis-tently from year to year.

CONNECTOR LOCATIONSSection 8W-90 contains Connector Location illustra-

tions. The illustrations contain the connector numberand component identification. Connector Locationcharts in Section 8W-90 reference the illustrationnumber for components and connectors.

Section 8W-80 shows each connector and the cir-cuits involved with that connector. The connectors areidentified using the number on the Diagram pages.

SPLICE LOCATIONSSplice Location charts in Section 8W-70 show the

entire splice, and provide references to other sectionsthe splice serves.

Section 8W-95 contains illustrations that show thegeneral location of the splices in each harness. Theillustrations show the splice by number, and provide awritten location.

ZJ WIRING DIAGRAMS 8W - 1

GENERAL INFORMATION - WIRING DIAGRAMSINDEX

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Circuit Identification . . . . . . . . . . . . . . . . . . . . . . . . . 1Connector and Terminal Replacement . . . . . . . . . . . 7Connector Replacement . . . . . . . . . . . . . . . . . . . . . 6Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Diode Replacement . . . . . . . . . . . . . . . . . . . . . . . . 8Electrostatic Discharge (ESD) Sensitive Devices . . . 2Intermittent and Poor Connections . . . . . . . . . . . . . . 4Notes, Cautions, and Warnings . . . . . . . . . . . . . . . . 1Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Take Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Terminal Replacement . . . . . . . . . . . . . . . . . . . . . . . 8Terminal/Connector Repair—Molex Connectors . . . . 6Troubleshooting Tests . . . . . . . . . . . . . . . . . . . . . . . 4Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . 4Troubleshooting Wiring Problems . . . . . . . . . . . . . . 5Wire Code Identification . . . . . . . . . . . . . . . . . . . . . 1Wiring Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

NOTES, CAUTIONS, and WARNINGSThroughout this group additional important infor-

mation is presented in three ways; Notes, Cautions,and Warnings.

NOTES are used to help describe how switches orcomponents operate to complete a particular circuit.They are also used to indicate different conditionsthat may appear on the vehicle. For example, anup-to and after condition.

CAUTIONS are used to indicate information thatcould prevent making an error that may damage thevehicle.

WARNINGS provide information to prevent per-sonal injury and vehicle damage. Below is a list ofgeneral warnings that should be followed any time avehicle is being serviced.

ALWAYS WEAR SAFETY GLASSES FOR EYE PRO-TECTION.

USE SAFETY STANDS ANYTIME A PROCEDURE RE-QUIRES BEING UNDER A VEHICLE.

BE SURE THAT THE IGNITION SWITCH ALWAYS ISIN THE OFF POSITION, UNLESS THE PROCEDUREREQUIRES IT TO BE ON.

SET THE PARKING BRAKE WHEN WORKING ONANY VEHICLE. AN AUTOMATIC TRANSMISSIONSHOULD BE IN PARK. A MANUAL TRANSMISSIONSHOULD BE IN NEUTRAL.

OPERATE THE ENGINE ONLY IN A WELL-VENTI-LATED AREA.

KEEP AWAY FROM MOVING PARTS WHEN THE EN-GINE IS RUNNING, ESPECIALLY THE FAN ANDBELTS.

TO PREVENT SERIOUS BURNS, AVOID CONTACTWITH HOT PARTS SUCH AS THE RADIATOR, EX-HAUST MANIFOLD(S), TAIL PIPE, CATALYTIC CON-VERTER, AND MUFFLER.

DO NOT ALLOW FLAME OR SPARKS NEAR THEBATTERY. GASES ARE ALWAYS PRESENT IN ANDAROUND THE BATTERY.

ALWAYS REMOVE RINGS, WATCHES, LOOSEHANGING JEWELRY, AND LOOSE CLOTHING.

WIRE CODE IDENTIFICATIONEach wire shown in the diagrams contains a code

(Fig. 1) which identifies the main circuit, part of themain circuit, gauge of wire, and color. The color isshown as a two letter code which can be identified byreferring to the Wire Color Code Chart (Fig. 2).

CIRCUIT IDENTIFICATIONAll circuits in the diagrams use an alpha/numeric

code to identify the wire and its function (Fig. 3). To

Fig. 1 Wire Color Code Identification

ZJ 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS 8W - 01 - 1

identify which circuit code applies to a system, referto the Circuit Identification Code Chart. This chartshows the main circuits only and does not show thesecondary codes that may apply to some models.

CONNECTORSConnectors shown in the diagrams are identified

using the international standard arrows for male andfemale terminals (Fig. 4). A connector identifier isplaced next to the arrows to indicate the connectornumber (Fig. 4).

For viewing connector pin outs, with two terminalsor greater, refer to section 8W-80. This section iden-tifies the connector by number and provides terminalnumbering, circuit identification, wire colors, andfunctions.

All connectors are viewed from the terminal endunless otherwise specified. To find the connector loca-tion in the vehicle refer to section 8W-90. This sec-tion uses the connector identification number fromthe wiring diagrams to provide a figure number ref-erence.

TAKE OUTSThe abbreviation T/O is used in the component lo-

cation section to indicate a point in which the wiringharness branches out to a component.

SYMBOLSVarious symbols are used throughout the Wiring

Diagrams. These symbols can be identified by refer-ring to the symbol identification chart (Fig. 5).

ELECTROSTATIC DISCHARGE (ESD) SENSITIVEDEVICES

All ESD sensitive components are solid state and asymbol (Fig. 6) is used to indicate this. When han-dling any component with this symbol, comply withthe following procedures to reduce the possibility ofelectrostatic charge build up on the body and inad-vertent discharge into the component. If it is notknown whether the part is ESD sensitive, assumethat it is.

(1) Always touch a known good ground before han-dling the part. This should be repeated while han-dling the part and more frequently after slidingacross a seat, sitting down from a standing position,or walking a distance.

Fig. 2 Wire Color Code Chart

Fig. 3 Circuit Identification

Fig. 4 Connector Identification

8W - 01 - 2 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS ZJ

Fig. 5 Symbol Identification


(2) Avoid touching electrical terminals of the part,unless instructed to do so by a written diagnosticprocedure.

(3) When using a voltmeter, be sure to connect theground lead first.

(4) Do not remove the part from its protectivepacking until it is time to install the part.

(5) Before removing the part from its package,ground the package to a known good ground on thevehicle.

TROUBLESHOOTING TOOLSWhen diagnosing a problem in an electrical circuit

there are several common tools necessary. These toolsare listed and explained below.• Jumper Wire - This is a test wire used to connecttwo points of a circuit. It can be used to bypass anopen in a circuit.

WARNING: NEVER USE A JUMPER WIRE ACROSSA LOAD, SUCH AS A MOTOR, CONNECTED BE-TWEEN A BATTERY FEED AND GROUND.

• Voltmeter - Used to check for voltage on a circuit.Always connect the black lead to a known goodground and the red lead to the positive side of thecircuit.

CAUTION: Most of the electrical components usedin today’s vehicle are solid state. When checkingvoltages in these circuits use a meter with a 10-me-gohm or greater impedance.

• Ohmmeter - Used to check the resistance betweentwo points of a circuit. Low or no resistance in a cir-cuit means good continuity.

CAUTION: - Most of the electrical components usedin today’s vehicle are Solid State. When checkingresistance in these circuits use a meter with a 10-megohm or greater impedance. In addition, makesure the power is disconnected from the circuit.Circuits that are powered up by the vehicle electri-cal system can cause damage to the equipment andprovide false readings.

• Probing Tools - These tools are used for probingterminals in connectors (Fig. 7). Select the propersize tool from Special Tool Package 6807, and insertit into the terminal being tested. Use the other endof the tool to insert the meter probe.

INTERMITTENT AND POOR CONNECTIONSMost intermittent electrical problems are caused by

faulty electrical connections or wiring. It is also pos-sible for a sticking component or relay to cause aproblem. Before condemning a component or wiringassembly check the following items.• Connectors are fully seated• Spread terminals, or terminal push out• Terminals in the wiring assembly are fully seatedinto the connector/component and locked in position• Dirt or corrosion on the terminals. Any amount ofcorrosion or dirt could cause an intermittent problem• Damaged connector/component casing exposing theitem to dirt and moisture• Wire insulation that has rubbed through causing ashort to ground• Wiring broke inside of the insulation

TROUBLESHOOTING TESTSBefore beginning any tests on a vehicle’s electrical

system, use the Wiring Diagrams and study the cir-cuit. Also refer to the Troubleshooting Wiring Prob-lems section in this section.

TESTING FOR VOLTAGE(1) Connect the ground lead of a voltmeter to a

known good ground (Fig. 8).(2) Connect the other lead of the voltmeter to the

selected test point. The vehicle ignition may need tobe turned ON to check voltage. Refer to the appropri-ate test procedure.

TESTING FOR CONTINUITY(1) Remove the fuse for the circuit being checked

or, disconnect the battery.(2) Connect one lead of the ohmmeter to one side

of the circuit being tested (Fig. 9).

Fig. 6 Electrostatic Discharge Symbol

Fig. 7 Probing Tool


(3) Connect the other lead to the other end of thecircuit being tested. Low or no resistance means goodcontinuity.

TESTING FOR A SHORT TO GROUND(1) Remove the fuse and disconnect all items in-

volved with the fuse.(2) Connect a test light or a voltmeter across the

terminals of the fuse.

(3) Starting at the fuse block, wiggle the wiringharness about six to eight inches apart and watchthe voltmeter/test lamp.

(4) If the voltmeter registers voltage or the testlamp glows, there is a short to ground in that gen-eral area of the wiring harness.

TESTING FOR A SHORT TO GROUND ONFUSES POWERING SEVERAL LOADS

(1) Refer to the wiring diagrams and disconnect orisolate all items on the fused circuit.

(2) Replace the blown fuse.(3) Supply power to the fuse by turning ON the ig-

nition switch or re-connecting the battery.(4) Start connecting the items in the fuse circuit

one at a time. When the fuse blows the circuit withthe short to ground has been isolated.

TESTING FOR A VOLTAGE DROP(1) Connect the positive lead of the voltmeter to

the side of the circuit closest to the battery (Fig. 10).(2) Connect the other lead of the voltmeter to the

other side of the switch or component.(3) Operate the item.(4) The voltmeter will show the difference in volt-

age between the two points.

TROUBLESHOOTING WIRING PROBLEMSWhen troubleshooting wiring problems there are

six steps which can aid in the procedure. The stepsare listed and explained below. Always check for non-factory items added to the vehicle before doing anydiagnosis. If the vehicle is equipped with these items,disconnect them to verify these add-on items are notthe cause of the problem.

Fig. 8 Testing for Voltage

Fig. 9 Testing for Continuity Fig. 10 Testing for Voltage Drop


(1) Verify the problem.(2) Verify any related symptoms. Do this by per-

forming operational checks on components that arein the same circuit. Refer to the wiring diagrams.

(3) Analyze the symptoms. Use the wiring dia-grams to determine what the circuit is doing, wherethe problem most likely is occurring and where thediagnosis will continue.

(4) Isolate the problem area.(5) Repair the problem.(6) Verify proper operation. For this step, check for

proper operation of all items on the repaired circuit.Refer to the wiring diagrams.

WIRING REPAIRWhen replacing or repairing a wire, it is important

that the correct gauge be used as shown in the wir-ing diagrams. The wires must also be held securelyin place to prevent damage to the insulation.

(1) Disconnect battery negative cable.(2) Remove 1 inch of insulation from each end of

the wire.(3) Place a piece of heat shrink tubing over one

side of the wire. Make sure the tubing will be longenough to cover and seal the entire repair area.

(4) Spread the strands of the wire apart on eachpart of the exposed wires (Fig. 11 example 1).

(5) Push the two ends of wire together until thestrands of wire are close to the insulation (Fig. 11 ex-ample 2).

(6) Twist the wires together (Fig. 11 example 3).(7) Solder the connection together using rosin core

type solder only. Do not use acid core solder.(8) Center the heat shrink tubing over the joint,

and heat using a heat gun. Heat the joint until thetubing is tightly sealed and sealant comes out of bothends of the tubing.

(9) Secure the wire to the existing ones to preventchafing or damage to the insulation.

(10) Connect battery and test all affected systems.

TERMINAL/CONNECTOR REPAIR—MOLEXCONNECTORS

(1) Disconnect battery.(2) Disconnect the connector from its mating half/

component.(3) Insert the terminal releasing special tool 6742

into the terminal end of the connector (Fig. 12).(4) Using special tool 6742, release the locking fin-

gers on the terminal (Fig. 13).(5) Pull on the wire to remove it from the connec-

tor.(6) Repair or replace the connector or terminal as

necessary.

CONNECTOR REPLACEMENT(1) Disconnect battery.

(2) Disconnect the connector that is to be repairedfrom its mating half/component.

Fig. 11 Wire Repair

Fig. 12 Molex Connector Repair

Fig. 13 Using Special Tool 6742


(3) Remove connector locking wedge, if required(Fig. 14).

(4) Position the connector locking finger away fromthe terminal using the proper pick from special toolkit 6680. Pull on the wire to remove the terminalfrom the connector (Fig. 15, and Fig. 16).

(5) Reset the terminal locking tang, if it has one.(6) Insert the removed wire in the same cavity on

the repair connector.(7) Repeat steps four through six for each wire in

the connector, being sure that all wires are insertedinto the proper cavities. For additional connector pin-out identification, refer to the wiring diagrams.

(8) Insert the connector locking wedge into the re-paired connector, if required.

(9) Connect connector to its mating half/compo-nent.

(10) Connect battery and test all affected systems.

CONNECTOR AND TERMINAL REPLACEMENT(1) Disconnect battery.(2) Disconnect the connector (that is to be re-

paired) from its mating half/component.

(3) Cut off the existing wire connector directly be-hind the insulator. Remove six inches of tape fromthe harness.

(4) Stagger cut all wires on the harness side at 1/2inch intervals (Fig. 17).

(5) Remove 1 inch of insulation from each wire onthe harness side.

(6) Stagger cut the matching wires on the repairconnector assembly in the opposite order as was doneon the harness side of the repair. Allow extra lengthfor soldered connections. Check that the overalllength is the same as the original (Fig. 17).

(7) Remove 1 inch of insulation from each wire.(8) Place a piece of heat shrink tubing over one

side of the wire. Be sure the tubing will be longenough to cover and seal the entire repair area.



Fig. 14 Connector Locking Wedge Tab (Typical)

Fig. 15 Terminal Removal

Fig. 16 Terminal Removal Using Special Tool

Fig. 17 Stagger Cutting Wires (Typical)


(11) Twist the wires together (Fig. 11 example 3).(12) Solder the connection together using rosin

core type solder only. Do not use acid core solder.(13) Center the heat shrink tubing over the joint


(14) Repeat steps 8 through 13 for each wire.(15) Re-tape the wire harness starting 1-1/2 inches

behind the connector and 2 inches past the repair.(16) Re-connect the repaired connector.(17) Connect the battery, and test all affected sys-

tems.

TERMINAL REPLACEMENT(1) Disconnect battery.(2) Disconnect the connector being repaired from

its mating half.(3) Remove connector locking wedge, if required

(Fig. 14).(4) Position the connector locking finger away from

the terminal using the proper pick from special toolkit 6680. Pull on the wire to remove the terminalfrom the connector (Figs. 15 and 16).

(5) Cut the wire 6 inches from the back of the con-nector.

(6) Remove 1 inch of insulation from the wire onthe harness side.

(7) Select a wire from the terminal repair assemblythat best matches the color wire being repaired.

(8) Cut the repair wire to the proper length and re-move 1 inch of insulation.

(9) Place a piece of heat shrink tubing over oneside of the wire. Make sure the tubing will be longenough to cover and seal the entire repair area.



(12) Twist the wires together (Fig. 11 example 3).(13) Solder the connection together using rosin

core type solder only. Do not use acid core solder.(14) Center the heat shrink tubing over the joint


(15) Insert the repaired wire into the connector.(16) Install the connector locking wedge, if re-

quired, and reconnect the connector to its matinghalf/component.

(17) Re-tape the wire harness starting 1-1/2 inchesbehind the connector and 2 inches past the repair.

(18) Connect the battery, and test all affected sys-tems.

DIODE REPLACEMENT(1) Disconnect the battery.(2) Locate the diode in the harness, and remove

the protective covering.(3) Remove the diode from the harness, pay atten-

tion to the current flow direction (Fig. 18).

(4) Remove the insulation from the wires in theharness. Only remove enough insulation to solder inthe new diode.

(5) Install the new diode in the harness, makingsure current flow is correct. If necessary, refer to theappropriate wiring diagram for current flow.

(6) Solder the connection together using rosin coretype solder only. Do not use acid core solder.

(7) Tape the diode to the harness using electricaltape. Make sure the diode is completely sealed fromthe elements.

(8) Re-connect the battery, and test affected sys-tems.

Fig. 18 Diode Identification


FUSE BLOCK

GENERAL INFORMATIONThis section covers the Fuse Block and all related

circuits involved with it. For additional informationon system operation, refer to the appropriate sectionof the wiring diagrams

DIAGRAM INDEX

Component PageCircuit Breaker (Cavity 25) . . . . . . . . . . . . . . . . . . .8W-10-6Circuit Breaker (Cavity 26) . . . . . . . . . . . . . . . .8W-10-9, 10Circuit Breaker (Cavity 27) . . . . . . . . . . . . . . . . . . .8W-10-8Circuit Breaker (Cavity 28) . . . . . . . . . . . . . . . . . . .8W-10-6Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-2, 3Fuse 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4, 5Fuse 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4, 5Fuse 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4Fuse 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4Fuse 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7Fuse 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4Fuse 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4Fuse 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6Fuse 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8Fuse 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8Fuse 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8Fuse 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7Fuse 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6Fuse 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6Fuse 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10Fuse 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8Fuse 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8Fuse 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11Fuse 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-12Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-10-12Heated Rear Window Relay . . . . . . . . . . . . . . . . .8W-10-11Ignition Switch . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 9, 10Lamp Outage Module . . . . . . . . . . . . . . . . . . . . .8W-10-13

ZJ 8W-10 FUSE/FUSE BLOCK 8W - 10 - 1

POWER DISTRIBUTION

GENERAL INFORMATIONThis section covers the power distribution center

and all circuits involved with it. For additional infor-mation on system operation, refer to the appropriatesection of the wiring diagrams.

DIAGRAM INDEX

Component PageABS Pump Motor Relay . . . . . . . . . . . . . . . . . . . .8W-11-8ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8A/C Compressor Clutch Relay . . . . . . . . . . . . . . . .8W-11-9Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-11-5Clutch Pedal Position Switch . . . . . . . . . . . . . . . . .8W-11-7Engine Starter Motor Relay . . . . . . . . . . . . . . . . . .8W-11-7Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5Fuse 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Fuse 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6Fuse 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5Fuse 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10Fuse 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-9Fuse 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6Fuse 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8Fuse 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Fuse 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8Fuse 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10Fuse 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-7Fuse 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Fuse 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Fuse 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Fuse 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6Fuse 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6, 9Power Distribution Center . . . . . . . . . . . . . . . . .8W-11-2, 3

ZJ 8W-11 POWER DISTRIBUTION 8W - 11 - 1

GROUND DISTRIBUTION

GENERAL INFORMATIONThis section identifies the grounds, splices that

connect to those grounds, and the components thatuse those grounds. For additional information on sys-tem operation, refer to the appropriate section of thewiring diagrams.

DIAGRAM INDEX

Component PageG100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-2, 4G101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3G102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3G103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3G104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3G105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-2, 4G106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-5G300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-6G301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-7

ZJ 8W-15 GROUND DISTRIBUTION 8W - 15 - 1

CHARGING SYSTEM

CHARGING SYSTEMThe charging system is an integral part of the bat-

tery and starting systems. Because all these systemswork in conjunction, diagnose and test them together.

Circuit A11 connects to the generator output termi-nal and splices to fuse F8 and fuse F16 in the PowerDistribution Center (PDC). Circuit A0 connects thebattery to the PDC.

Circuit Z0 provides ground for the generator. Cir-cuit Z0 attaches to the rear of the right side of theengine, and is spliced to the battery negative termi-nal.

Power for the field terminal of the generator is sup-plied by circuit A61. The A61 circuit is connected tothe contact side of the Automatic Shut Down (ASD)relay.

Power for the contact side of the relay is suppliedby circuit A5. This circuit is protected by a 20 ampfuse located in cavity 2 of the PDC.

When the PCM grounds the ASD relay, contacts in-side the relay close and connect circuit A5 from fuse2 in the PDC to circuit A61. Circuit A61 splices to thegenerator field terminal.

The PCM has an internal voltage regulator thatcontrols generator output. The PCM controls the gen-erator field on circuit K20. Circuit K20 connects toPCM cavity 20.

When the engine operates and there is current inthe generator field, the generator produces a B+ volt-

age. The generator supplies B+ voltage to the batterythrough the A11 and A0 circuits.

HELPFUL INFORMATION• Check the 20 amp fuse located in cavity 2 of thePDC.• Circuit A5 also splices to provide power for thefuel pump relay.• The ASD relay supplies battery voltage for the fuelinjectors, ignition coil, and the heated oxygen sensor.The fuel pump relay powers the fuel pump module.• Refer to the appropriate group of the Service Man-ual or the appropriate Diagnostic Test ProceduresManual.

DIAGRAM INDEX

Component PageAutomatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-20-3Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3Fuse 8 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3Fuse 16 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3Powertrain Control Module . . . . . . . . . . . . . . . . .8W-20-2, 3

ZJ 8W-20 CHARGING SYSTEM 8W - 20 - 1

STARTING SYSTEM

STARTING SYSTEM

AUTOMATIC TRANSMISSIONSCircuit A0 from the battery is double crimped at

the positive battery post. One branch of circuit A0(battery positive cable) connects to the batterystarter motor. The other A0 branch supplies voltageto the buss bar in the Power Distribution Center(PDC).

The PDC supplies battery voltage to the enginestarter motor solenoid on circuit T40 when the coilside of the engine starter motor relay energizes. Cir-cuit A1 from fuse 12 in the PDC supplies batteryvoltage to the contact side of the starter motor relay.

The ignition switch supplies battery voltage to thecoil side of the starter motor relay on circuit A41when the key is moved to the START position andthe Park/Neutral position switch is closed. Groundfor the coil side of the starter motor relay is suppliedby the case grounded Park/Neutral position switch.Circuit T41 connects the coil side of the relay to thePark/Neutral position switch, and is also spliced tothe Powertrain Control Module (PCM).

When the starter motor relay energizes and thecontacts close, circuit T40 supplies battery voltage tothe starter motor solenoid. Circuit A0 from the bat-tery supplies voltage to the starter motor when thesolenoid energizes.

MANUAL TRANSMISSIONSCircuit A0 from the battery is double crimped at

the positive battery post. One branch of circuit A0(battery positive cable) connects to the batterystarter motor. The other A0 branch supplies voltageto the buss bar in the Power Distribution Center(PDC).

The PDC supplies battery voltage to the enginestarter motor solenoid on circuit T40 when the coilside of the engine starter motor relay energizes. Cir-

cuit A1 from fuse 12 in the PDC supplies batteryvoltage to the contact side of the starter motor relay.

The ignition switch supplies battery voltage to thecoil side of the starter motor relay on circuit A41when the key is moved to the START position. Cir-cuit T41 from the coil side of the relay connects to aZ1 splice. Circuit Z1 provides ground for the startermotor relay and terminates at the right fender sideshield.

When the starter motor relay energizes and thecontacts close, circuit T40 supplies battery voltage tothe starter motor solenoid. Circuit A0 from the bat-tery supplies voltage to the starter motor when thesolenoid energizes.

HELPFUL INFORMATION• The Park/Neutral switch closes when the trans-mission is in either the PARK or NEUTRAL posi-tions.• Circuit T41 also connects to cavity 30 of the PCM.This input tells the PCM the operator is starting thevehicle.• Check the 40 amp fuse located in cavity F12 of thePDC.

DIAGRAM INDEX

Component PageClutch Pedal Position Switch . . . . . . . . . . . . . . . . .8W-21-2Engine Starter Motor . . . . . . . . . . . . . . . . . . . . . .8W-21-2Engine Starter Motor Relay . . . . . . . . . . . . . . . . . .8W-21-2Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2Park/Neutral Position Switch . . . . . . . . . . . . . . . . .8W-21-2Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-21-2

ZJ 8W-21 STARTING SYSTEM 8W - 21 - 1

FUEL/IGNITION

INDEX

page page

Automatic Shut Down (ASD) Relay . . . . . . . ........... 1Battery Feed . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Brake Switch Input . . . . . . . . . . . . . . . . . . . ........... 5Camshaft Position Sensor . . . . . . . . . . . . . . ........... 3CCD Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . ........... 5Crankshaft Position Sensor . . . . . . . . . . . . . ........... 3Data Link Connector . . . . . . . . . . . . . . . . . . ........... 5Diagram Index—4.0L Engine . . . . . . . . . . . . . ........... 6Diagram Index—5.2L Engine . . . . . . . . . . . . . ........... 6Engine Coolant Temperature Sensor . . . . . . ........... 4EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . ........... 5Exhaust Gas Recirculation Solenoid—5.2L Engine ....... 5Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . ........... 2Fuel Pump Module . . . . . . . . . . . . . . . . . . . ........... 2

Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . ........... 2General Information . . . . . . . . . . . . . . . . . . . ........... 1Heated Oxygen Sensor . . . . . . . . . . . . . . . . ........... 3Idle Air Control (IAC) Motor . . . . . . . . . . . . . ........... 3Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . ........... 1Intake Air Temperature Sensor . . . . . . . . . . . ........... 4Malfunction Indicator Lamp (MIL) . . . . . . . . . ........... 5Manifold Absolute Pressure Sensor . . . . . . . ........... 4Park/Neutral Position Switch . . . . . . . . . . . . ........... 5Power (Device) Ground . . . . . . . . . . . . . . . . ........... 5Tachometer Signal . . . . . . . . . . . . . . . . . . . . ........... 5Throttle Position Sensor . . . . . . . . . . . . . . . . ........... 4Vehicle Speed Sensor . . . . . . . . . . . . . . . . . ........... 3

GENERAL INFORMATIONThe operation of the fuel/ignition systems for the

4.0L and the 5.2L engines available in this vehicleare similar. The circuit descriptions in this sectioncover both engine packages.

Where there are differences, for example Power-train Control Module (PCM) pin-outs, the circuit de-scriptions will be shown separately.

IGNITION SWITCH

START OR RUN POSITIONWhen the ignition switch is in either the START or

RUN positions, it connects circuit A1 to circuit A21.Circuit A1 is protected by a 40 amp fuse located incavity 12 of the Power Distribution Center (PDC),and is HOT at all times.

Circuit A21 connects between the ignition switchand the 15 amp fuse located in cavity 6 of the PDC.From the fuse in cavity 6, circuit F86 supplies powerto the coil side of the fuel pump relay. At the fuelpump relay, circuit F86 is double pinned and suppliespower to the coil side of the Automatic Shut Down(ASD) relay. Circuit F86 also connects to cavity 9 ofthe Powertrain Control Module (PCM).

Circuit A21 also connects to a bus bar in the fuseblock that feeds fuses 21 and 22.

ACCESSORY OR RUN POSITIONWhen the ignition switch is in either the ACCES-

SORY or RUN positions, it connects circuit A1 to cir-cuit A31. Circuit A1 is protected by a 40 amp fuselocated in cavity 12 of the Power Distribution Center(PDC), and is HOT at all times.

Circuit A31 connects to the fuse block and feeds thecircuits connected to fuses 9, 10, and 11.

START POSITIONIn the START position, the ignition switch connects

circuit A1 from the 40 amp fuse in cavity 12 of thePower Distribution Center (PDC) to circuit A41. Cir-cuit A41 connects to the contact side of the enginestarter motor relay.

Also in the START position, the ignition switchconnects circuit G9 to ground. Circuit G9 connects tothe instrument cluster and park brake switch.

RUN POSITIONIn the RUN position, the ignition switch connects

circuit A2 from 60 amp fuse 13 in the PDC to circuitA22. Circuit A22 connects to the fuse block and feedsthe circuits protected by fuses, 17, 18, 19 and 20. Cir-cuit V34 from fuse 20 in the fuse block supplies bat-tery voltage to the vehicle speed control system.

AUTOMATIC SHUT DOWN (ASD) RELAYWhen the ignition switch is in either the START or

RUN positions, it connects circuit A1 from fuse 12 inthe Power Distribution Center (PDC) to circuit A21.Circuit A21 supplies battery voltage to fuse 6 in thePDC.

From fuse 6, circuit F86 supplies power to the coilside of the fuel pump relay. At the fuel pump relay,circuit F86 is double pinned and supplies power tothe coil side of the Automatic Shut Down (ASD) re-lay. The Powertrain Control Module (PCM) providesground for the coil sides of the ASD relay and fuelpump relay on circuit K81. Circuit K81 connects tocavity 51 of the PCM.

When the PCM grounds the ASD relay, contacts in-side the relay close and connect circuit A5 from fuse2 in the PDC to circuit A61. Circuit A61 splices to the

ZJ 8W-30 FUEL/IGNITION 8W - 30 - 1

generator field terminal, fuel injectors, and ignitioncoil. Circuit A61 also connects to cavity 57 of thePCM.

HELPFUL INFORMATION• Circuit A5 originates at fuse 15 in the PDC andcontinues through fuse 2 in the PDC. Circuit A5 alsoconnects to cavity 3 of the PCM.• Circuit F86 also connects to cavity 9 of the PCM.

BATTERY FEEDCircuit A5 from fuse 15 in the Power Distribution

Center (PDC) supplies battery voltage to cavity 3 ofthe Powertrain Control Module (PCM).

HELPFUL INFORMATION• Circuit A5 originates at fuse 15 in the PDC andcontinues through fuse 2 in the PDC. Circuit A5 con-nects to cavity 3 of the PCM and supplies batteryvoltage to the contact sides of the fuel pump relayand Automatic Shut Down (ASD) relay.

FUEL INJECTORSWhen the Automatic Shut Down (ASD) relay con-

tacts close, they connect circuits A5 and A61. CircuitA61 supplies voltage to the fuel injectors. Each injec-tor has a separate ground circuit controlled by thePCM.

Circuit K11 provides ground for injector numberone. The K11 circuit connects to cavity 16 of thePCM.

Circuit K12 provides ground for injector numbertwo. The K12 circuit connects to cavity 15 of thePCM.

Circuit K13 provides ground for injector numberthree. The K13 circuit connects to cavity 14 of thePCM.

Circuit K14 provides ground for injector numberfour. The K14 circuit connects to cavity 13 of thePCM.

Circuit K38 provides ground for injector numberfive. The K38 circuit connects to cavity 38 of thePCM.

Circuit K58 provides ground for injector numbersix. The K58 circuit connects to cavity 58 of thePCM.

On 5.2L engines, circuit K17 provides ground forinjector number seven. The K17 circuit connects tocavity 17 of the PCM.

On 5.2L engines, circuit K18 provides ground forinjector number eight. The K18 circuit connects tocavity 18 of the PCM.

HELPFUL INFORMATION• Circuit A61 splices to supply voltage to the fuel in-jectors, ignition coil, PCM, generator.• For information about fuel injector operation, referto Group 14.

IGNITION COILWhen the Automatic Shut Down (ASD) relay con-

tacts close, they connect circuits A5 and A61. CircuitA61 splices to supply voltage to the ignition coil. ThePCM controls the ground path for the ignition coil oncircuit K19. Circuit K19 connects to cavity 19 of thePCM.

HELPFUL INFORMATIONCircuit A61 splices to supply voltage to the fuel in-

jectors, ignition coil, PCM, and generator.

FUEL PUMP RELAYWhen the ignition switch is in either the START or

RUN positions, it connects circuit A1 from fuse 12 inthe Power Distribution Center (PDC) to circuit A21.Circuit A21 supplies battery voltage to fuse 6 in thePDC.

From fuse 6, circuit F86 supplies power to the coilside of the fuel pump relay. At the fuel pump relay,circuit F86 is double pinned and supplies power tothe coil side of the Automatic Shut Down (ASD) re-lay. The Powertrain Control Module (PCM) providesground for the coil sides of the fuel pump relay andASD relay on circuit K81. Circuit K81 connects tocavity 51 of the PCM.

When the PCM grounds the fuel pump relay, con-tacts inside the relay close and connect circuit A5from fuse 15 in the PDC to circuit A64. Circuit A64connects to the fuel pump (part of the in-tank fuelpump module) and the heated oxygen sensor.

HELPFUL INFORMATION• Circuit A5 originates at fuse 15 in the PDC andbranches to fuse 2 in the PDC. From fuse 2, circuitA5 connects to the contact side of the ASD relay. Cir-cuit A5 also connects to cavity 3 of the PCM.

FUEL PUMP MODULE

FUEL PUMP MOTORWhen the fuel pump relay contacts close, the relay

supplies voltage to the fuel pump motor. Circuit A64from the relay supplies voltage to the fuel pump mo-tor. Circuit Z1 provides ground for the fuel pump mo-tor.

FUEL LEVEL SENSORThe fuel level sensor is a variable resistor. Circuit

G44 connects the fuel level sensor to the overheadconsole. Circuit K102 connects the fuel level sensorto the fuel gauge in the instrument cluster. CircuitF87 from fuse 21 in the fuse block supplies voltage tothe fuel gauge. Circuit Z2 provides the ground pathfor the fuel level sensor.

8W - 30 - 2 8W-30 FUEL/IGNITION ZJ

HELPFUL INFORMATIONAs current flows through the coils in the fuel

gauge, it creates a magnetic field. One of the coils inthe gauge receives fixed current. The other coil isconnected to the level sensor. The magnetic field con-trols the position of the fuel gauge pointer.

The fuel level sensor contains a variable resistor.As the position of the float arm on the fuel level sen-sor changes, the resistor changes the current flowthrough second coil in the fuel gauge. A change incurrent flow alters the magnetic field in the fuelgauge, which changes the pointer position. Refer toGroup 8E, Instrument Panel and Gauges for addi-tional information.

IDLE AIR CONTROL (IAC) MOTORThe Powertrain Control Module (PCM) operates

the idle air control motor through 4 circuits - K39,K40, K59, and K60. Each circuit connects to separatecavities in the PCM connector.• Circuit K39 connects to cavity 59 of the PCM• Circuit K40 connects to cavity 40 of the PCM• Circuit K59 connects to cavity 60 of the PCM• Circuit K60 connects to cavity 39 of the PCM

VEHICLE SPEED SENSORCircuit K25 supplies 8 volts from the Powertrain

Control Module (PCM) to the vehicle speed sensor.The K25 circuit connects to cavity 7 of the PCM.

Circuit G7 from the vehicle speed sensor providesan input signal to the PCM. The G7 circuit connectsto cavity 47 of the PCM.

The PCM provides a ground for the vehicle speedsensor signal (circuit G7) through circuit K4. CircuitK4 connects to cavity 4 of the PCM.

HELPFUL INFORMATION• Circuit G7 splices to the speedometer, and vehicleinformation center.• Circuit K25 splices to supply 8 volts to the cam-shaft position sensor and crankshaft position sensor.

Circuit K4 splices to supply ground for the signalsfrom the following:• Heated oxygen sensor• Camshaft position sensor• Crankshaft position sensor• Throttle position sensor• Manifold absolute pressure sensor• Engine coolant temperature sensor• Intake air temperature sensor

HEATED OXYGEN SENSORWhen the fuel pump relay contacts close, they con-

nect circuits A5 and A64. Circuit A64 supplies volt-age to the heated oxygen sensor.

Circuit K41 delivers the signal from the heated ox-ygen sensor to the PCM. Circuit K41 connects to cav-ity 41 of the PCM.

The PCM provides a ground for the heated oxygensensor signal (circuit K41) through circuit K4. CircuitK4 connects to cavity 4 of the PCM connector.

Circuit Z12 provides ground for the heater circuitin the sensor.

HELPFUL INFORMATION• Circuit A64 also supplies battery voltage to the in-tank fuel pump.

Circuit K4 splices to supply ground for the signalsfrom the following:• Heated oxygen sensor• Camshaft position sensor• Crankshaft position sensor• Intake air temperature sensor• Throttle position sensor• Manifold absolute pressure sensor• Engine coolant temperature sensor• Vehicle speed sensor

CAMSHAFT POSITION SENSORThe Powertrain Control Module (PCM) supplies 8

volts to the camshaft position sensor (in distributor)on circuit K25. Circuit K25 connects to cavity 7 ofthe PCM.

The PCM receives the camshaft position sensor sig-nal on circuit K24. Circuit K24 connects to cavity 44of the PCM.

The PCM provides a ground for the camshaft posi-tion sensor signal (circuit K24) through circuit K4.Circuit K4 connects to cavity 4 of the PCM.

HELPFUL INFORMATION• Circuit K25 splices to supply 8 volts to the crank-shaft position sensor and the vehicle speed sensor.


CRANKSHAFT POSITION SENSORThe Powertrain Control Module (PCM) supplies 8

volts to the crankshaft position sensor on circuit K25.Circuit K25 connects to cavity 7 of the PCM.

The PCM receives the crankshaft position sensorsignal on circuit K27. Circuit K27 connects to cavity24 of the PCM.


The PCM provides a ground for the crankshaft po-sition sensor (circuit K27) through circuit K4. CircuitK4 connects to cavity 4 of the PCM.

HELPFUL INFORMATION• Circuit K25 splices to supply 8 volts to the cam-shaft position sensor and the vehicle speed sensor.


ENGINE COOLANT TEMPERATURE SENSORThe engine coolant temperature sensor provides an

input to the Powertrain Control Module (PCM) oncircuit K2. From circuit K2, the engine coolant tem-perature sensor draws up to 5 volts from the PCM.The sensor is a variable resistor. As coolant temper-ature changes, the resistance in the sensor changes,causing a change in current draw. The K2 circuitconnects to cavity 2 of the PCM.

The PCM provides a ground for the engine coolanttemperature sensor signal (circuit K2) through circuitK4. Circuit K4 connects to cavity 4 of the PCM con-nector.

HELPFUL INFORMATIONCircuit K4 splices to supply ground for the signals

from the following:• Heated oxygen sensor• Camshaft position sensor• Crankshaft position sensor• Intake air temperature sensor• Throttle position sensor• Manifold absolute pressure sensor• Engine coolant temperature sensor• Vehicle speed sensor

THROTTLE POSITION SENSORFrom the Powertrain Control Module (PCM), cir-

cuit K6 supplies 5 volts to the throttle position sen-sor (TPS). Circuit K6 connects to cavity 6 of thePCM.

Circuit K22 delivers the TPS signal to the PCM.Circuit K22 connects to cavity 22 of the PCM.

The PCM provides a ground for the throttle posi-tion sensor signal (circuit K22) through circuit K4.Circuit K4 connects to cavity 4 of the PCM.

HELPFUL INFORMATIONRefer to Group 14 for throttle position sensor oper-

ation.

Circuit K6 splices to supply 5 volts to the manifoldabsolute pressure sensor.

On vehicles equipped with the 4.0L engine and au-tomatic transmission, circuit K22 splices to thetransmission control module.


MANIFOLD ABSOLUTE PRESSURE SENSORFrom the Powertrain Control Module (PCM), cir-

cuit K6 supplies 5 volts to the manifold absolutepressure (MAP) sensor. Circuit K6 connects to cavity6 of the PCM.

Circuit K70 delivers the MAP signal to the PCM.Circuit K70 connects to cavity 1 of the PCM.

The PCM provides a ground for the MAP sensorsignal (circuit K70) through circuit K4. Circuit K4connects to cavity 4 of the PCM.

HELPFUL INFORMATIONRefer to Group 14 for MAP sensor operation.Circuit K6 splices to supply 5 volts to the throttle

position sensor.Circuit K4 splices to supply ground for the signals


INTAKE AIR TEMPERATURE SENSORThe intake air temperature sensor provides an in-

put to the Powertrain Control Module (PCM) on cir-cuit K21. Circuit K21 connects to cavity 21 of thePCM.

From circuit K21, the intake air temperature sen-sor draws voltage from the PCM. The sensor is avariable resistor. As intake air temperature changes,the resistance in the sensor changes, causing achange in current draw.

The PCM provides a ground for the intake air tem-perature sensor signal (circuit K21) through circuitK4. Circuit K4 connects to cavity 4 of the PCM.


HELPFUL INFORMATIONCircuit K4 splices to supply ground for the signals


EVAP/PURGE SOLENOIDCircuit F86 supplies voltage to the EVAP/Purge so-

lenoid. This circuit is HOT in the START and RUNpositions only. Circuit F86 also splices to providepower to the data link connector, overdrive solenoid,TCC solenoid, and EGR solenoid (5.2L engine only).

Circuit F86 is protected by a 15 amp fuse locatedin cavity 6 of the Power Distribution Center (PDC).

The Powertrain control Module (PCM) controls theground path for the solenoid on circuit K52. CircuitK52 connects to cavity 52 of the PCM connector.

EXHAUST GAS RECIRCULATION SOLENOID—5.2LENGINE

Circuit F86 supplies voltage to the EGR solenoid.This circuit is HOT in the START and RUN positionsonly. Circuit F86 also splices to provide power to thedata link connector, overdrive solenoid and TCC sole-noid, and the EVAP/Purge solenoid.

Circuit F86 is protected by a 15 amp fuse locatedin cavity F6 of the Power Distribution Center (PDC).

The Powertrain Control Module (PCM) controls theground path for the solenoid on circuit K35. CircuitK35 connects to cavity 35 of the PCM connector.

PARK/NEUTRAL POSITION SWITCHWhen closed, the case-grounded park/neutral posi-

tion switch provides a ground path on circuit T41 forthe coil side of the starter motor relay. Circuit A41from the ignition switch provides battery voltage tothe coil side of the relay.

Circuit T41 splices to cavity 30 of the PCM. Thepark/neutral position switch provides an input to thePowertrain Control Module (PCM).

TACHOMETER SIGNALThe Powertrain Control Module (PCM) supplies the

signal for the tachometer on circuit G21. Circuit G21connects to cavity 43 of the PCM. The TransmissionControl Module (TCM) also receives the tachometersignal from the PCM.

MALFUNCTION INDICATOR LAMP (MIL)The Powertrain Control Module (PCM) provides

ground for the instrument cluster malfunction indica-

tor lamp on circuit G3. The MIL displays the mes-sage CHECK ENGINE when illuminated. Circuit G3connects to cavity 32 of the PCM.

DATA LINK CONNECTORCircuit F86 supplies battery voltage to the data

link connector. Circuit F86 originates at fuse 6 in thePower Distribution Center (PDC).

Circuit A21 from the ignition switch powers fuse 6when the switch is in the START or RUN positions. Inthe START or RUN position the ignition switch connectscircuit A1 from fuse 12 in the PDC with circuit A21.

Circuit D84 connects to cavity 25 of the PCM. Cir-cuit D84 is the SCI receive circuit for the PCM.

Circuit D83 connects to cavity 45 of the PCM. Cir-cuit D83 is the SCI transmit circuit for the PCM.

Circuit Z12 provides ground for the data link con-nector. Circuit Z12 also connects to cavities 5, 11 and12 of the PCM to provide the power (device) ground.

HELPFUL INFORMATION• Circuit Z12 also supplies a ground for the PCMhigh current drivers.• If the system loses ground for the Z12 circuits, thevehicle will not operate.• Circuit F86 splices to supply battery voltage to theheated rear window switch, overdrive switch, vehicletheft alarm module and rear lighting system. CircuitF86 also powers the coil side of the Automatic ShutDown relay and fuel pump relay.

BRAKE SWITCH INPUTCircuit L53 provides the brake switch input to the

PCM. Circuit L53 connects to cavity 29 of the PCM.

POWER (DEVICE) GROUNDCircuit Z12 connects to cavities 5, 11 and 12 of the

PCM. The Z12 circuit provides ground for PCM inter-nal drivers that operate high current devices like theinjectors and ignition coil.

Internal to the PCM, the power (device) ground cir-cuit connects to the PCM sensor return circuit (fromcircuit K4).

HELPFUL INFORMATION• If the system loses ground for the Z12 circuits, thevehicle will not operate. Check the connection at theganged-ground circuit eyelet.

CCD BUSOn vehicles equipped with the 4.0L engine, circuits

D1 and D2 connect the Powertrain Control Module(PCM) to the CCD Bus. Circuit D1 connects to cavity 26of the PCM. Circuit D2 connects to cavity 46 of thePCM. Circuits D1 and D2 are a twisted pair of wires.

Both circuits D1 and D2 connect to the second datalink connector located behind left from side of thecenter console.


DIAGRAM INDEX—4.0L ENGINE

Component PageABS Data Link Connector . . . . . . . . . . . . . . . . . .8W-30-15Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-30-8Camshaft Position Sensor . . . . . . . . . . . . . . . . . .8W-30-13Crankshaft Position Sensor . . . . . . . . . . . . . . . . .8W-30-13Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-30-16Engine Coolant Temperature Sensor . . . . . . . . . . . .8W-30-12EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . . . . .8W-30-14Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-10Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-30-9Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 15Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 14Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . .8W-30-7, 8, 14Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-7Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 15Heated Oxygen Sensor . . . . . . . . . . . . . . . . . . . .8W-30-14Idle Air Control Motor . . . . . . . . . . . . . . . . . . . . .8W-30-11Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-11Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-7, 14Intake Air Temperature Sensor . . . . . . . . . . . . . . .8W-30-12Manifold Absolute Pressure Sensor . . . . . . . . . . . .8W-30-12Powertrain Control Module . . . . . . . . . . . . .8W-30-8 thru 18Rolls Connector . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-16Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-18Throttle Position Sensor . . . . . . . . . . . . . . . . . . .8W-30-12Transmission Control Module . . . . . . . . . . . . . . . .8W-30-15Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-30-13

DIAGRAM INDEX—5.2L ENGINE

Component PageABS Data Link Connector . . . . . . . . . . . . . . . . . .8W-30-28Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-30-20Camshaft Position Sensor . . . . . . . . . . . . . . . . . .8W-30-25Crankshaft Position Sensor . . . . . . . . . . . . . . . . .8W-30-25Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-30-27Engine Coolant Temperature Sensor . . . . . . . . . . . .8W-30-24EGR Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-26EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . . . . .8W-30-26Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-22Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-30-21Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-30-20, 28Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-30-20, 26, 27Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . .8W-30-19, 20, 27Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-19Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-28Heated Oxygen Sensor . . . . . . . . . . . . . . . . . . . .8W-30-26Idle Air Control Motor . . . . . . . . . . . . . . . . . . . . .8W-30-23Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-23Ignition Switch . . . . . . . . . . . . . . . . .8W-30-19, 20, 26, 27Intake Air Temperature Sensor . . . . . . . . . . . . . . .8W-30-24Manifold Absolute Pressure Sensor . . . . . . . . . . . .8W-30-24Powertrain Control Module . . . . . . . . . . . .8W-30-20 thru 31Rolls Connector . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-27Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-30Throttle Position Sensor . . . . . . . . . . . . . . . . . . .8W-30-24Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-30-25


TRANSMISSION CONTROLS

OVERDRIVE SWITCHVehicles equipped with an automatic transmission

may have an overdrive switch. The operator disablesor enables overdrive when the switch is depressed.

The overdrive system consists of a switch connectedto the Powertrain Control Module (PCM) and an over-drive ON/OFF indicator lamp.

If overdrive is currently enabled, it is disabled whenthe operator depresses the overdrive switch. Conversely,if the operator already disabled overdrive, it is enabledwhen the switch is depressed. The overdrive lamp illu-minates when overdrive is disabled.

Circuit T9 from the overdrive switch connects to theTransmission Control Module (TCM) on vehiclesequipped with 4.0L engines or the Powertrain ControlModule (PCM) on vehicles equipped with 5.2L en-gines. Circuit T9 provides the overdrive signal. Cir-cuit Z1 provides ground for the switch.

In the START and RUN position, the ignition switchconnects circuit A1 from fuse 12 in the Power Distribu-tion Center (PDC) with circuit A21. Circuit A21 powerscircuit F87 through fuse 21 in the fuse block. Circuit F87supplies battery voltage for the overdrive lamp.

On vehicles equipped with 4.0L engines, the TCMturns the overdrive ON/OFF indicator lamp ON or OFFby providing a ground for the lamp on circuit G68.

On vehicles equipped with 5.2L engines, the PCMturns the overdrive ON/OFF indicator lamp ON or OFFby providing a ground for the lamp on circuit G68.

HELPFUL INFORMATIONThe overdrive lamp is a Light Emitting Diode

(LED).

OVERDRIVE SOLENOID AND TORQUE CONVERTERCLUTCH (TCC) SOLENOID—5.2L ENGINE

The overdrive solenoid and Torque ConverterClutch (TCC) solenoid are molded together. CircuitF86 supplies voltage to both solenoids. The Power-train Control Module (PCM) provides ground for theoverdrive solenoid on circuit T60. Refer to OverdriveSwitch in this section.

The Powertrain Control Module (PCM) providesground for the TCC solenoid on circuit T6.

TRANSMISSION CONTROL MODULE—4.0LENGINE

The Transmission Control Unit (TCM) operates the42RE transmission used with 4.0L engines. The TCMcontrols the electronic governor, overdrive solenoid,and Torque Convertor Clutch (TCC) solenoid.

Circuit A14 from fuse 3 in the Power DistributionCenter (PDC) supplies battery voltage to the Transmis-sion Control Module (TCM). Circuit A5 from fuse 15 inthe PDC supplies voltage to circuit A14 through PDCfuse 3.

When the ignition switch is in the START or RUNposition, circuit A1 from fuse 12 in the PDC connectsto circuit A21. Circuit A21 feeds circuit F86 throughfuse 6 in the PDC. Circuit F86 connects to the TCM.

The TCM receives the Throttle Position Sensor(TPS) signal on circuit K22. On circuit G7 the TCMreceives the vehicle speed sensor signal. The Power-train Control Module (PCM) supplies 8 volts to thevehicle speed sensor on circuit K25 and 5 volts to theTPS on circuit K6. Circuit K4 from the PCM providesground for the signals from both sensors.

The TCM provides voltage and ground for the over-drive solenoid, electronic governor, and Torque Con-verter Clutch (TCC) solenoid. Circuit T20 from the TCMsupplies voltage. The TCM provides ground for the over-drive solenoid on circuit T60, the electronic governor oncircuit T59 and the TCC solenoid on circuit T22.

On circuit T33, the TCM supplies 5 volts to thetransmission temperature sensor, and the governorpressure sensor. The ground path for the sensors is oncircuit T35 to the TCM.

Circuits D5 and D82 from the TCM connect to thedata link connector. Circuit Z1 provides ground forthe data link connector and TCM. Circuit A14 sup-plies voltage to the connector for the scan tool.

UPSHIFT LAMPOn vehicles equipped with a manual transmission,

the PCM grounds the up-shift lamp on circuit K54.Circuit K54 connects to cavity 54 of the PCM.

DIAGRAM INDEX

Component PageData Link Connector . . . . . . . . . . . . . . . . . . . . . . .8W-31-2Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . .8W-31-2, 5, 6Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-31-6Overdrive Switch . . . . . . . . . . . . . . . . . . . . . . .8W-31-5, 6Overdrive and TCC Solenoids . . . . . . . . . . . . . . . . .8W-31-6Power Distribution Center (PDC) . . . . . . . . . . . .8W-31-2, 5, 6Powertrain Control Module . . . . . . . . . . . . . . .8W-31-4, 5, 6Throttle Position Sensor . . . . . . . . . . . . . . . . . . . .8W-31-4Transmission Control Module . . . . . . . . . . . . .8W-31-2 thru 5Transmission Output Speed Sensor . . . . . . . . . . . . .8W-31-5Transmission Solenoid Assembly . . . . . . . . . . . . . . .8W-31-3Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . . .8W-31-4

ZJ 8W-31 TRANSMISSION CONTROLS 8W - 31 - 1

ANTI-LOCK BRAKES

INDEX

page page

ABS Pump Motor Relay . . . . . . . . . . . . . . . . ........... 1ABS System Relay . . . . . . . . . . . . . . . . . . . ........... 1ABS Warning Lamp . . . . . . . . . . . . . . . . . . . ........... 2Acceleration Switch . . . . . . . . . . . . . . . . . . . ........... 1Brake Switch Input . . . . . . . . . . . . . . . . . . . ........... 2Data Link Connector . . . . . . . . . . . . . . . . . . ........... 2

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2General Information . . . . . . . . . . . . . . . . . . . ........... 1Hydraulic Control Unit . . . . . . . . . . . . . . . . . ........... 2Pump Motor Speed Sensor . . . . . . . . . . . . . ........... 2Wheel Speed Sensors . . . . . . . . . . . . . . . . . ........... 1

GENERAL INFORMATIONThree fuses supply power for the Anti-Lock Brake

System (ABS); fuses 7 (40 amp) and 9 (20 amp) inthe Power Distribution Center (PDC) and fuse 15 (3amp) in the fuse block. Fuses 7 and 9 in the PDC areconnected directly to battery voltage and are HOT alltimes. Fuse 15 in the fuse block is HOT when the ig-nition switch is the RUN Position.

In the RUN position, the ignition switch connectscircuit A2 from fuse 13 in the PDC with circuit A22.Circuit A22 connects to a bus bar in the fuse block.The bus bar feeds circuit 236 through fuse 15.

Circuit 236 connects to the coil side of the ABS sys-tem relay and cavity 53 of the ABS control module.

Circuit Z1 provides ground for the ABS controlmodule. Circuit Z1 connects to cavities 1 and 19 ofthe ABS control module.

Refer to group 5, Brakes for operational descrip-tions of ABS system components.

WHEEL SPEED SENSORSThe all wheel anti-lock system uses four wheel

speed sensors; one for each wheel. Each sensor con-verts wheel speed into an electrical signal that ittransmits to the ABS control module. A pair oftwisted wires connect to each sensor to provide sig-nals to the ABS control module.

Circuits B6 and B7 provide signals to ABS controlmodule from the right front wheel speed sensor. CircuitB6 which provides the LOW signal connects to cavity 29of the ABS control module. Circuit B7 connects to cavity47 of the module and provides the HIGH signal.

Circuits B8 and B9 provide signals to ABS controlmodule from the left front wheel speed sensor. CircuitB8, which provides the HIGH signal, connects to cavity30 of the ABS control module. Circuit B9 connects tocavity 48 of the module and provides the LOW signal.

Circuits B1 and B2 provide signals to ABS controlmodule from the right rear wheel speed sensor. Cir-cuit B1 which provides the HIGH signal connects tocavity 45 of the ABS control module. Circuit B2 con-nects to cavity 27 of the module and provides theLOW signal.

Circuits B4 and B3 provide signals to ABS controlmodule from the left rear wheel speed sensor. CircuitB3, which provides the LOW signal, connects to cavity28 of the ABS control module. Circuit B4 connects tocavity 46 of the module and provides the HIGH signal.

ACCELERATION SWITCHDuring four-wheel drive operation, the acceleration

switch provides deceleration data to the ABS controlmodule. Refer to Group 5, Brakes for additional infor-mation.

Circuits B41, B42, and B43 connect the accelera-tion sensor to the ABS control module. Circuits B41and B42 provide switch states while circuit B43 pro-vides ground. At the ABS control module, circuit B41connects to cavity 25, circuit B42 connects to cavity43 and circuit B43 connects to cavity 26.

ABS SYSTEM RELAYThe ABS system relay is located in the Power Distri-

bution Center (PDC). When the ABS module groundsthe ABS system relay on circuit 207, the relay switchesto connect circuit A20 from PDC fuse 9 to circuit 235.Circuit 236 from fuse 7 in the fuse block feeds the coilside of the ABS system relay. Circuit 207 connects tocavity 34 of the ABS control module.

Circuit 235 is double crimped at the ABS system re-lay. One branch of circuit 235 supplies power to the coilside of the ABS pump motor relay. The other branch ofcircuit 235 splices to cavities 3 and 33 of the ABS con-trol module and to the hydraulic control unit.

ABS PUMP MOTOR RELAYThe ABS pump motor relay in the Power Distribution

Center (PDC) supplies voltage to the ABS pump motor.When the ABS power relay energizes, circuit 235 sup-plies battery voltage to the coil side of the ABS pumpmotor relay. The ABS control module provides groundfor the relay on circuit B116. Circuit B116 connects tocavity 15 of the ABS control module.

When the ABS pump motor energizes, it connectscircuit A10 from PDC fuse 7 to circuit B120. CircuitB120 supplies battery voltage to the pump motor.Circuit Z1 provides ground for the pump motor.

ZJ 8W-32 ANTI-LOCK BRAKES 8W - 32 - 1

PUMP MOTOR SPEED SENSORThe input from the pump motor speed sensor tells

the ABS control module that the pump is operating.Circuits B219 and B220 from the control module con-nect to the speed sensor.

Circuit B219 connects to cavity 31 of the ABS con-trol module. Circuit B220 connects to cavity 49 of theABS control module.

BRAKE SWITCH INPUTCircuit L50 from the stop lamp provides the brake

switch input to the ABS control module. When thebrake pedal is depressed, the stop lamp switch closesto supply battery voltage from circuit L16 to circuitL50. Circuit L50 connects to cavity 32 of the ABScontrol module. Circuit L16 originates at fuse 2, a 15amp, in the fuse block.

HYDRAULIC CONTROL UNITWhen the ABS power relay energizes, two branches

of circuit 235 splice to supply voltage to the isolationand dump solenoids in the hydraulic control unit.The hydraulic control unit contains three separateisolation solenoids and three separate dump sole-noids. The ABS control module activates the isolationand dump solenoids by providing separate groundpaths for each.

The ABS module provides a ground path for therear isolation solenoid on circuit B251. Circuit B251connects to cavity 54 of the ABS control module.

For the right front isolation solenoid, the ABS mod-ule provides a ground path on circuit B249. CircuitB249 connects to cavity 38 of the ABS control mod-ule.

On circuit B245, the ABS module provides groundfor the left front isolation solenoid. Circuit B245 con-nects to cavity 20 of the ABS control module.

The ABS module provides a ground path for therear dump solenoid on circuit B254. Circuit B254connects to cavity 36 of the ABS control module.

For the right front dump solenoid, the ABS moduleprovides a ground path on circuit B248. Circuit B248connects to cavity 21 of the ABS control module.

On circuit B243, the ABS module provides groundfor the left dump solenoid. Circuit B243 connects tocavity 2 of the ABS control module.

ABS WARNING LAMPCircuit F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the ABS warning lamp. Circuits F87 and G5 areHOT when the ignition switch is in the START orRUN position.

Ground for the ABS warning lamp is provided byeither the ABS control module or by the ABS power

relay when the relay is not energized. The ABS con-trol module illuminates the lamp by providingground on circuit 205.

Circuit 205 splices to connect to circuit 235 through adiode. When the ABS power relay is not energized, itconnects circuit 235 to circuit Z1. The ground path forthe warning lamp is through the diode to circuit 235,through the ABS power relay to ground on circuit Z1.

The diode between circuit 205 and 235 preventsvoltage from flowing to the ABS control module whenthe ABS power relay switches to supply power on cir-cuit 235.

DATA LINK CONNECTORCircuit D1 from cavity 23 of the ABS control mod-

ule receives data from the DRB scan tool through thedata link connector. The ABS control module trans-mits data to the scan tool through the connector oncircuit D2. Circuit D2 originates at cavity 42 of theABS control module.

Through the data link connector, circuit Z12 pro-vides ground for the DRB scan tool.

HELPFUL INFORMATION• Check the 40 amp fuse in cavity 7 of the PDC• Check the 20 amp fuse in cavity 9 of the PDC• Check the 3 amp fuse in cavity 15 of the fuse block• Check the grounding points at the left and rightfender side shields• Refer to the appropriate section of the ServiceManual or the Diagnostic Test Procedures manual.

DIAGRAM INDEX

Component PageABS Control Module . . . . . . . . . . . . . . . . . .8W-32-3 thru 8ABS Data Link Connector . . . . . . . . . . . . . . . . . . .8W-32-8ABS Pump Motor . . . . . . . . . . . . . . . . . . . . . . . .8W-32-5ABS Pump Motor Relay . . . . . . . . . . . . . . . . . . . .8W-32-4ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4ABS Warning Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Acceleration Switch . . . . . . . . . . . . . . . . . . . . . . .8W-32-5Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Fuse 2 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Fuse 7 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4Fuse 9 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4Fuse 15 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-4Fuse 18 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-4Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-3Hydraulic Control Unit . . . . . . . . . . . . . . . . . . . . .8W-32-6Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3, 4Lamp Outage Module (LOM) . . . . . . . . . . . . . . . . .8W-32-3Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-32-8Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3Wheel Speed Sensors . . . . . . . . . . . . . . . . . . . . . .8W-32-7

8W - 32 - 2 8W-32 ANTI-LOCK BRAKES ZJ

VEHICLE SPEED CONTROL

VEHICLE SPEED CONTROLThe Powertrain Control Module (PCM) operates

the vehicle speed control system. The vehicle speedcontrol switches are located in the steering wheel, be-low the airbag.

Circuit V34 from fuse 20, a 10 amp, in the fuseblock supplies battery voltage to the vehicle speedcontrol ON/OFF switch. Circuit A22 supplies voltageto fuse 20 when the ignition switch is in the RUN po-sitions. In the RUN position the ignition switch con-nects circuit A22 with circuit A2. Fuse 13 in thePower Distribution Center (PDC) protects circuit A2.

The vehicle speed control ON/OFF switch suppliesvoltage to the SET/COAST and RESUME/ACCELswitches. Both switches send signals to the PCM.

The PCM controls the vent and vacuum functionsof the speed control servo on circuits V35 and V36.Depending on the signal it receives from vehiclespeed control switches, the PCM either applies vac-uum to or vents vacuum from the servo. Circuit V36from cavity 33 of the PCM sends the vacuum signalto the servo. Circuit V35 from cavity 53 sends thevent signal.

Circuit V32 signals to the PCM that the speed con-trol switch is in the ON position. The V32 circuit con-nects to cavity 49 of the PCM. Circuit V32 alsoconnects to the stop lamp switch.

In the closed position, the stop lamp switch con-nects circuit V32 with circuit V30 to power the speedcontrol servo. Circuit Z1 provides ground for thespeed control servo.

Circuit V31 provides the SET/COAST signal to cav-ity 48 of the PCM. Circuit V33 sends the RESUME/ACCELERATE signal to cavity 50 of the PCM.

Circuit L53 connects to cavity 29 of the PCM andto ground through the stop lamp switch. When thestop lamp switch opens, voltage is removed from theservo on circuit V30 and the PCM vents the servo.From the stop lamp switch, circuit Z1 providesground for circuit L53.

HELPFUL INFORMATION• Check the 10 amp fuse in cavity 20 of the fuseblock• Check fuse 13 in the PDC

DIAGRAM INDEX

Component PageFuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-33-2Fuse 20 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-33-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-33-2Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-33-2Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-33-3Vehicle Speed Control Servo . . . . . . . . . . . . . . . . .8W-33-2Vehicle Speed Control Switch . . . . . . . . . . . . . . . . .8W-33-2

ZJ 8W-33 VEHICLE SPEED CONTROL 8W - 33 - 1

VEHICLE THEFT ALARM

INDEX

page page

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 System Operation . . . . . . . . . . . . . . . . . . . . ........... 1

SYSTEM OPERATIONThe optional Vehicle Theft Alarm (VTA) is used to

protect the vehicle from theft by monitoring the ve-hicle doors, ignition switch, power door lock circuits,and the trunk key cylinder to determine if the alarmshould be sounded and the ignition system disabled.

A Vehicle Theft Alarm (VTA) module, and a VTArelay are used to control for the system. The VTAmodule is located on the left rear side of the glovebox, and the relay is located in the relay center un-der the glove box.

The VTA system uses a SET lamp located in the in-strument cluster to indicate when the system isARMED. The lamp is supplied power on circuit F70at the instrument cluster. This circuit is protected bya 20 amp fuse located in the fuse block, cavity 14,and HOT at all times. Power for the fuse is suppliedby circuit A7 from the Power Distribution Center(PDC) fuse 14.

The VTA module controls ground for the lamp oncircuit G69.

For additional information on VTA system opera-tion refer to group 8Q in this Service Manual.

VEHICLE THEFT ALARM MODULEThe Vehicle Theft Alarm (VTA) module controls the

operation of the VTA system. Power for the module issupplied from several sources. A constant batteryfeed is supplied on circuit X3. This circuit is HOT atall times, and protected by a 15 amp fuse located incavity 6 of the fuse block. Power for the fuse is sup-plied by circuit A7 from the Power Distribution Cen-ter (PDC) fuse 14.

Power is also supplied by circuits F86 and F87. TheF86 circuit is HOT in the ACCESSORY and RUN po-sitions. This circuit is protected by a 10 amp circuitbreaker located in cavity 27 of the fuse block. Powerfor the circuit breaker is supplied by circuit A31 fromthe ignition switch. Circuit F87 supplies power to themodule in the START or RUN positions and is pro-tected by a 15 amp fuse located in cavity 21 of thefuse block.

The VTA module uses the CCD bus to communicatewith the Powertrain Control Module (PCM). CircuitD1 is the CCD (+) and circuit D2 is the CCD(-).

Ground for the VTA module is supplied on the Z1circuit from two cavities of the module.

DOOR AJAR SWITCH OPERATIONThe VTA system uses the door/liftgate ajar

switches to provide an input to the VTA module.These switches are normally OPEN with the doors/liftgate closed. When a door or the liftgate is openedthe switch CLOSES completing a path to ground.Circuit M2 is used to monitor the doors. This circuitis also used as the ground circuit for the interiorlamps.

The G85 circuit is used for the liftgate ajar switchinput to the VTA module.

ARMING INPUTThe keyless entry module is used to supply the

VTA module with the arming input. This is accom-plished on circuit G49.

DISARM SWITCH OPERATIONThere are three switches used to ARM and DIS-

ARM the system. Two are located in the left frontand right front doors, and the third is located in theliftgate. These switches are normally OPEN. Whenthe switch is CLOSED a path to ground is completed.All of the switches are wired together and a singleinput is provided to the module on circuit G71.

HOOD SWITCHThe hood ajar switch is normally OPEN and case

grounded. When the switch closes, it provides a pathto ground on circuit G70.

VEHICLE THEFT ALARM RELAYThe Vehicle Theft Alarm (VTA) relay, located in the

relay center under the glove box, is used for head-lamp operation when the alarm has been triggered.

When the alarm has been triggered, the VTA mod-ule supplies power to the coil side of the VTA relayon circuit G79. This causes the relay to energize con-necting circuits L11, which is the feed for the FLASHTO PASS portion of the dimmer switch, to circuit L3.

Circuit L3 is the feed for the high beam head-lamps. The VTA module cycles the power to the VTArelay causing the headlamps to flash.

Ground for the coil side of the VTA relay is sup-plied on circuit Z1.

ZJ 8W-39 VEHICLE ALARM 8W - 39 - 1

PARK LAMPSWhen the alarm is triggered, the VTA module sup-

plies power to the front and rear parking lamps oncircuit L90.

HORN OPERATIONWhen the alarm is triggered, the VTA module pro-

vides ground for the horn relay on circuit X4. Thiscauses the horn relay to energize and the horns tooperate.

HELPFUL INFORMATION• Check the fuses in cavities 6, 7, and 21 of the fuseblock• Check the 10 amp circuit breaker located in cavity27 of the fuse block• Check the door and liftgate ajar switches for agood ground• Refer to the appropriate group of the Service Man-ual or the Diagnostic Test Procedures Manual for ad-ditional diagnostic procedures

DIAGRAM INDEX

Component PageABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-39-11Circuit Breaker 27 . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3Door Cylinder Switches . . . . . . . . . . . . . . . . . . . .8W-39-10Door Ajar Switches . . . . . . . . . . . . . . . . . . . . . . .8W-39-9Fuse 6 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-39-4Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3Fuse 13 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-4Fuse 14 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-6Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-39-4, 6Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-3Hood Ajar Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-39-8Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-4Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . .8W-39-6Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-39-8Liftgate Key Cylinder . . . . . . . . . . . . . . . . . . . . . .8W-39-10Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-39-8Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-39-11Remote Keyless Entry Module . . . . . . . . . . . . . .8W-39-5, 9Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-39-8Vehicle Theft Alarm (VTA) Module . . . . . . . .8W-39-3 thru 11Vehicle Theft Alarm Relay . . . . . . . . . . . . . . . . . . .8W-39-5

8W - 39 - 2 8W-39 VEHICLE ALARM ZJ

INSTRUMENT CLUSTER

INDEX

page page

ABS Warning Lamp . . . . . . . . . . . . . . . . . . . ........... 2Airbag Warning Lamp . . . . . . . . . . . . . . . . . ........... 3Brake Warning Lamp . . . . . . . . . . . . . . . . . . ........... 2Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 3Engine Coolant Temperature Gauge . . . . . . . ........... 1Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . ........... 1High Beam Indicator Lamp . . . . . . . . . . . . . . ........... 2Instrument Cluster . . . . . . . . . . . . . . . . . . . . ........... 1Instrument Cluster Illumination Lamps . . . . . ........... 1Low Fuel Warning Lamp . . . . . . . . . . . . . . . ........... 1

Malfunction Indicator Lamp (MIL) . . . . . . . . . ........... 2Manual Transmission Up-Shift Lamp . . . . . . ........... 3Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . ........... 1Seat Belt Indicator Warning Lamp . . . . . . . . ........... 2Security Lamp . . . . . . . . . . . . . . . . . . . . . . . ........... 3Speedometer . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Turn Signal Indicator Lamps . . . . . . . . . . . . ........... 2Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2

INSTRUMENT CLUSTERThe instrument cluster contains the gauges and

warning lamps. All gauges have magnetic move-ments.

When the ignition switch is in the START or RUNposition, it connects circuit A1 from fuse 12 in thePower Distribution Center (PDC) to circuit A21. Cir-cuit A21 feeds circuit F87 through fuse 21 in the fuseblock. Circuit A21 also powers circuit G5 throughfuse 22 in the fuse block. Circuit A1 is HOT at alltimes.

Circuits F87 and G5 supply power to the instru-ment cluster for the warning lamps and gauges. Cir-cuit Z1 provides ground for the warning lamps.Circuit Z2 provides ground for the gauges.

HELPFUL INFORMATIONCircuit G5 also connects to the airbag diagnostic

connector.Circuit Z2 also provides ground for the overhead

console and fuel gauge level sensor.

INSTRUMENT CLUSTER ILLUMINATION LAMPSCircuit E2 from the dimming module feeds the il-

lumination lamps. Circuit Z1 provides ground for theillumination lamps.

ENGINE COOLANT TEMPERATURE GAUGECircuit G20 connects the engine coolant tempera-

ture gauge to the engine coolant temperature sensor.The sensor is a variable resistor and case groundedto the engine.

Circuits F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltageto the gauge. Circuit Z2 provides the ground path forthe gauge.

The gauge uses two coils. Current passing throughthe coils creates a magnetic field. Position of thegauge needle is controlled by the amount of currentpassing through the coils to ground at the sensor.

FUEL GAUGEThe fuel level sensor is a variable resistor. Circuit

G44 connects the fuel level sensor to the overheadconsole. Circuit K102 connects the fuel level sensorto the fuel gauge in the instrument cluster. CircuitsF87 from fuse 21 in the fuse block and circuit G5from fuse 22 in the fuse block supply voltage to thefuel gauge. Circuit Z2 provides the ground path forthe fuel level sensor.

The fuel gauge has two coils. As current flowsthrough the coils in the fuel gauge, it creates a mag-netic field. One of the coils in the gauge receivesfixed current. The other coil is connected to the levelsensor. The magnetic field controls the position of thefuel gauge pointer.

As the position of the float arm on the fuel levelsensor changes, the resistor changes the current flowthrough second coil in the fuel gauge. A change incurrent flow alters the magnetic field in the fuelgauge, which changes the pointer position.

Circuits F87 and G5 also power the low fuel warn-ing lamp. Refer to Group 8E, Instrument Panel andGauges for additional information.

LOW FUEL WARNING LAMPCircuit K102 connects the fuel level sensor to the

fuel gauge. The low fuel level module at the rear ofthe gauge monitors resistance in circuit K102. Thelow fuel level module powers the low fuel warninglamp when the resistance in circuit K102 reaches acalibrated level. Circuit Z2 provides ground for thelow fuel warning lamp. Refer to Group 8E for addi-tional information.

OIL PRESSURE GAUGEThe case grounded oil pressure sensor is a variable

resistor that connects to circuit G6. Circuit G6 con-nects to the oil pressure gauge.

Circuits F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltage

ZJ 8W-40 INSTRUMENT CLUSTER 8W - 40 - 1

to the oil pressure gauge. Circuit Z2 provides theground path for the gauge.

The oil pressure gauge has two coils. As currentflows through the coils in the gauge, it creates amagnetic field. One of the coils in the gauge receivesfixed current. The other coil is connected to the oilpressure sensor. The magnetic field controls the posi-tion of the gauge pointer.

As oil pressure changes, the sensor alters the cur-rent flow through second coil in the fuel gauge. Achange in current flow alters the magnetic field inthe fuel gauge, which changes the pointer position.

VOLTMETERCircuit F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the voltmeter. Circuits F87 and G5 are HOT whenthe ignition switch is in the START or RUN position.Circuit Z2 provides ground for the voltmeter.

TACHOMETERThe tachometer module in the instrument cluster

operates the tachometer. The Powertrain ControlModule (PCM) supplies the signal for the tachometeron circuit G21. Circuit G21 connects to cavity 43 ofthe PCM.

Circuit F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltageto the tachometer module. Circuits F87 and G5 areHOT when the ignition switch is in the START orRUN position. Circuit Z2 provides ground for the ta-chometer and module.

Circuit G21 also connects to the transmission con-trol module (TCM).

SPEEDOMETERThe speedometer receives a signal from the vehicle

speed sensor on circuit G7. Circuit G7 also connectsto the Powertrain Control Module (PCM) at cavity47.

Circuits F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltageto the speedometer. Circuits F87 and G5 are HOTwhen the ignition switch is in the START or RUN po-sition. Circuit Z2 provides ground for the speedome-ter.

MALFUNCTION INDICATOR LAMP (MIL)The PCM provides ground for the instrument clus-

ter malfunction indicator lamp on circuit G3. CircuitG3 connects to cavity 32 of the PCM. The MIL dis-plays the message CHECK ENGINE when illumi-nated.

Circuits F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltageto the MIL. Circuits F87 and G5 are HOT when theignition switch is in the START or RUN position.

For information regarding diagnostic trouble codeaccess using the MIL lamp, refer to Group 14, FuelSystems.

SEAT BELT INDICATOR WARNING LAMPThe seat belt indicator warning lamp is activated

by the chime module on circuit G13. Circuit G13 sup-plies power to instrument cluster for the lamp. Cir-cuit Z1 provides ground for the lamp.

The chime/buzzer module powers circuit G11 afterit receives an input on circuit G10 indicating the seatbelt switch is open.

HIGH BEAM INDICATOR LAMPCircuit G34 supplies power to the high beam indi-

cator lamp in the instrument cluster. On vehicles notequipped with Daytime Running Lamps (DRL), cir-cuit L3 from the dimmer switch powers circuit G34.

On vehicles equipped with DRL, the DRL/Dimmingmodule powers circuit G34. Circuit Z1 providesground for the indicator lamp.

TURN SIGNAL INDICATOR LAMPSCircuits L64 and L65 power from the turns signal

switch circuitry in the multi-function switch supplypower for the turn signal indicator lamps. CircuitL64 powers the left indicator lamp. Circuit L65 pow-ers the right indicator lamp. Circuit Z1 providesground for the lamps.

ABS WARNING LAMPCircuits F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the ABS warning lamp. Circuits F87 and G5 areHOT when the ignition switch is in the START orRUN position.

Ground for the ABS warning lamp is provided byeither the ABS control module or by the ABS powerrelay when the relay is not energized. The ABS con-trol module illuminates the lamp by providingground on circuit 205.

Circuit 205 connects to circuit 235 through a diode.When the ABS power relay is not energized, it con-nects circuit 235 to circuit Z1. The ground path forthe warning lamp is through the diode to circuit 235,through the ABS power relay to ground on circuit Z1.

The diode between circuit 205 and 235 preventsvoltage from flowing to the ABS control module whenthe ABS power relay switches to supply power on cir-cuit 235.

BRAKE WARNING LAMPCircuits F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the ABS warning lamp. Circuits F87 and G5 are

8W - 40 - 2 8W-40 INSTRUMENT CLUSTER ZJ

HOT when the ignition switch is in the START orRUN position. Circuit G9 provides ground for thebrake warning lamp.

On vehicle not equipped with Daytime RunningLamps (DRL), ground for the park brake lamp issupplied either through the case grounded parkbrake switch or brake warning switch on circuit G9.

On vehicles equipped with DRL, the park brakeswitch connects to the DRL module on circuit G11.Circuit G9 connects to the DRL module through thebrake warning switch. If the park brake switchcloses, the DRL module provides ground for brakewarning lamp on circuit G9 through the brake warn-ing switch. The case grounded brake warning switchcan also connect circuit G9 to ground.

For all vehicles, circuit G9 also connects to the ig-nition switch. When the case grounded ignitionswitch is in the START position, it provides groundfor the lamp.

MANUAL TRANSMISSION UP-SHIFT LAMPCircuits F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the up-shift lamp. Circuits F87 and G5 are HOTwhen the ignition switch is in the START or RUN po-sition.

The Powertrain Control Module (PCM) providesground for the up-shift lamp on circuit K54. CircuitK54 connects to cavity 54 of the PCM.

AIRBAG WARNING LAMPCircuits F87 from fuse 21 in the fuse block and cir-

cuit G5 from fuse 22 in the fuse block supply voltageto the airbag warning lamp. Circuits F87 and G5 areHOT when the ignition switch is in the START orRUN position.

The Airbag Control Module (ACM) provides groundfor the up-shift lamp on circuit R41. Circuit R41 con-nects to cavity 3 of the ACM.

SECURITY LAMPCircuit F70 from fuse 14 in the fuse block supplies

power for the security lamp. Circuit A7 from fuse 14in the PDC supplies power to the fuse block for cir-cuit F70.

Circuit G69 from the Vehicle Theft Alarm (VTA)module supplies ground for the lamp after the VTAsystem has been properly armed. Refer to Group 8Q,Vehicle Theft Alarm.

DIAGRAM INDEX

Component PageABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-40-5ABS Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-5ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-40-5ABS Warning Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-40-5Airbag Control Module . . . . . . . . . . . . . . . . . . . . .8W-40-4Airbag Warning Lamp . . . . . . . . . . . . . . . . . . . . . .8W-40-4Brake Warning Lamp . . . . . . . . . . . . . . . . . . . .8W-40-6, 7Brake Warning Switch . . . . . . . . . . . . . . . . . . . . .8W-40-6Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-9Dimming/DRL Module . . . . . . . . . . . . . . . . . . .8W-40-9, 16Engine Coolant Temperature Gauge . . . . . . . . . . . .8W-40-12Engine Coolant Temperature Sending Unit . . . . . . . .8W-40-12Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-14Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-40-14Fuse 12 (PDC) . . . . . . . . . . . . .8W-40-4 thru 7, 11 thru 15Fuse 14 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-40-8Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-8Fuse 21 (Fuse Block) . . . . . . . . .8W-40-4 thru 7, 11 thru 15Fuse 22 (Fuse Block) . . . . . . . . .8W-40-4 thru 7, 11 thru 15General Illumination Lamps . . . . . . . . . . . . . . . . .8W-40-16High Beam Indicator Lamp . . . . . . . . . . . . . . . . . .8W-40-9Ignition Switch . . . . . . . . . . . . .8W-40-4 thru 7, 11 thru 15Low Fuel Warning Lamp . . . . . . . . . . . . . . . . . . .8W-40-14Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . .8W-40-4Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . .8W-40-11Oil Pressure Sending Unit . . . . . . . . . . . . . . . . . .8W-40-11Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-40-6Powertrain Control Module . . . . . . . . . . . . . . . .8W-40-4, 15Seat Belt Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-9Seat Belt Warning Lamp . . . . . . . . . . . . . . . . . . . .8W-40-9Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-13Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-15Turn Signal Indicator Lamps . . . . . . . . . . . . . . . . .8W-40-10Up-Shift Lamp . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-4Vehicle Theft Alarm (VTA) Module . . . . . . . . . . . . . .8W-40-8Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-40-13Vehicle Theft Alarm Security Lamp . . . . . . . . . . . . .8W-40-8Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-12

ZJ 8W-40 INSTRUMENT CLUSTER 8W - 40 - 3

HORNS/CIGAR LIGHTER

HORNThe horn system is powered by a 20-amp fuse lo-

cated in cavity 13 of the fuse block. The fuse is HOTat all times on circuit F62. This circuit supplies volt-age to the coil and to the contact side of the horn re-lay.

Power for the fuse is supplied on circuit A7 whichoriginates at fuse 14 in the Power Distribution Cen-ter (PDC).

When the operator presses the horn switch, aground path is completed on the coil side of the hornrelay through the switch, on circuit X4. The horn re-lay, located in the relay center, then closes the relaycontacts. Voltage is passed through the closed relaycontacts on circuit X2 to the horns. Grounding for thehorns is on the Z1 circuit.

On vehicles equipped with Vehicle Theft Alarm(VTA), the X4 circuit is spliced to the Vehicle TheftAlarm (VTA) module. For operation of the VTA sys-tem, refer to section 8W-39.

HELPFUL INFORMATION• Check the 20 amp fuse in cavity 13 of the fuseblock• Check fuse 14 in the PDC• Press the horn switch and listen for the horn relayto click. A clicking relay indicates voltage is presentup to the switch

CIGAR LIGHTERThe cigar lighter is powered by a 15 amp fuse lo-

cated in cavity 11 of the fuse block. This fuse is HOTin the ACCESSORY and RUN positions only. Powerfor the fuse is supplied on circuit A31 from the igni-tion switch.

When the operator depresses the lighter, the con-tacts inside of the lighter element close, and voltagefrom circuit F30 flows through the heating elementto ground. Ground for the lighter is provided on theZ1 circuit.

HELPFUL INFORMATION• Check the 15 amp fuse located in cavity 11 of thefuse block• Check the cigar lighter element

DIAGRAM INDEX

Component PageCigar Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2Fuse 11 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-41-2Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2Fuse 13 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-41-2Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2Horn Switches . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2

ZJ 8W-41 HORNS/CIGAR LIGHTER 8W - 41 - 1

AIR CONDITIONING/HEATER

CONTENTS

page page

AUTOMATIC TEMPERATURE CONTROL ........... 3 MANUAL A/C-HEATER . . . . . . . . . . . . . ........... 1

GENERAL INFORMATIONThis section of the wiring diagrams is divided into

two sub-sections; Manual A/C-Heater, and Automatic

Temperature Control (ATC). When referring to thecircuit descriptions or wiring diagrams, ensure thatyou use the correct sub-section.

MANUAL A/C-HEATER

INDEX

page page

Air Conditioning Operation . . . . . . . . . . . . . . ........... 1Blend Air Door Motor . . . . . . . . . . . . . . . . . . ........... 2Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . ........... 1

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2General Information . . . . . . . . . . . . . . . . . . . ........... 1

GENERAL INFORMATIONSeveral fuses supply power for the manual air con-

ditioning/heater system. When the ignition switch isin the RUN position, it connects circuit A2 from fuse13 in the Power Distribution Center (PDC) to circuitA22. Circuit A22 powers circuit F71 through fuse 17in the fuse block. Circuit F71 connects to the A/Ccontrol switches and the blend air door motor.

When the ignition switch is in the START or RUNposition, it connects circuit A1 to circuit A21. CircuitA21 powers circuit F83 through fuse 5 in the PDC.Circuit F83 powers the coil side of the A/C compressorclutch relay and the A/C low pressure switch.

Circuit E2 from the dimming module powers theillumination lamps in the A/C heater control switch.

BLOWER MOTORThe blower motor switch has four positions; LOW,

MEDIUM 1, MEDIUM 2, AND HIGH. Circuit A19from fuse 11 in the PDC supplies power to the blowermotor. Ground for the blower motor is supplied oncircuit C7 through the blower motor resistor block tothe blower motor switch, through an internal relay inthe A/C-Heater Control head. When the internal relayenergizes, it connects the blower motor switch to cir-cuit C1. Circuit C1 connects to ground circuit Z1.

In the HIGH position, the blower motor switch con-nects circuit C7 from the blower motor directly toground on circuits C1 and Z1. In the LOW or MEDI--UM positions, the ground path passes through the

blower motor resistor block to the switch. The switchconnects to circuit C1.

The blower motor resistor block consists of threeresistors connected in series. Depending on blowermotor switch position, the ground path on circuit C7from the blower motor passes through one or moreresistors to circuit C1.

When the blower motor switch is in the LOW posi-tion, the ground path passes through all three resis-tors in the blower motor resistor block to circuit C4.The blower motor switch connects circuit C4 to cir-cuits C1 and Z1.

In the MEDIUM 1 position, the ground path passesthrough two resistors in the resistor block to circuitC5. The blower motor switch connects circuit C5 tocircuits C1 and Z1.

In the MEDIUM 2 position, the ground path passesthrough one resistor in the resistor block to circuitC6. The blower motor switch connects circuit C6 tocircuits C1 and Z1.

AIR CONDITIONING OPERATIONWhen the A/C-heater control switch is moved to an

A/C position or the defrost position, the PowertrainControl Module (PCM) receives the A/C select signalon circuit C90. Circuit C90 connects to cavity 28 ofthe PCM.

ZJ 8W-42 AIR CONDITIONING/HEATER 8W - 42 - 11995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995

If the A/C low pressure and high pressure switchesare closed, the PCM receives the A/C request signalon circuit C21. The A/C low pressure and high pres-sure switches are wired in series. Circuit F83 fromfuse 5 in the Power Distribution Center (PDC) sup-plies battery voltage to the low pressure switch. Cir-cuit C3 from the low pressure switch connects to thehigh pressure switch. Circuit C21 from the high pres-sure switch connects to cavity 27 of the PCM and tothe contact side of the A/C compressor clutch relay.

After receiving the A/C request signal, the PCMsupplies ground for the coil side of A/C compressorclutch relay on circuit C13. Circuit C13 connects tocavity 34 of the PCM. Circuit F83 supplies batteryvoltage to the coil side of the relay.

When the PCM grounds the A/C compressor clutchrelay, the contacts close and connect circuits C21 andC2. Circuit C2 supplies power to the case groundedA/C compressor clutch.

The A/C compressor clutch has a built-in diode. Thediode controls the induced voltage that results fromthe magnetic field collapsing when the clutch disen-gages. The diode provides a current path to protectother components and systems.

HELPFUL INFORMATION• Circuit F83 is HOT when the ignition switch is inthe RUN or START position.

Circuit F83 is double crimped at the coil side of theA/C compressor clutch relay. The branch of circuitF83 from the relay connects to the A/C low pressureswitch.

BLEND AIR DOOR MOTORThe A/C-Heater control head contains a blend door

position sensor. The sensor is a variable resistor thatprovides the blend door position input to the blenddoor motor actuator on circuit C36.

Circuit F71 from fuse 17 in the fuse block powersthe actuator when the ignition switch is in the RUNposition. Circuit C34 splices to connect the blend doormotor to ground circuit Z1.

DIAGRAM INDEX

Component PageA/C Compressor . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7A/C Compressor Clutch Relay . . . . . . . . . . . . . . . . .8W-42-7A/C-Heater Control Switches . . . . . . . . . . . . . . . . . .8W-42-6A/C High Pressure Switch . . . . . . . . . . . . . . . . . . .8W-42-7A/C Low Pressure Switch . . . . . . . . . . . . . . . . . . . .8W-42-7Blend Air Door Motor . . . . . . . . . . . . . . . . . . . . . .8W-42-6Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5Blower Motor Resistor Block . . . . . . . . . . . . . . . . . .8W-42-6Blower Motor Switch . . . . . . . . . . . . . . . . . . . . . .8W-42-6Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5Fuse 17 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-42-5Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-6, 7Powertrain Control Module . . . . . . . . . . . . . . . . .8W-42-6, 7

8W - 42 - 2 8W-42 MANUAL A/C-HEATER ZJ1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995

AUTOMATIC TEMPERATURE CONTROL

INDEX

page page

Air Conditioning Operation . . . . . . . . . . . . . . ........... 3Automatic Temperature Control (ATC) Module .......... 3Blend Door Motor . . . . . . . . . . . . . . . . . . . . ........... 4Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . ........... 4

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 4General Information . . . . . . . . . . . . . . . . . . . ........... 3Mode Door Motor . . . . . . . . . . . . . . . . . . . . ........... 4Recirculation Door Motor . . . . . . . . . . . . . . . ........... 4

GENERAL INFORMATIONSeveral fuses supply power for the Automatic Tem-

perature Control (ATC) system. When the ignitionswitch is in the RUN position, it connects circuit A2from fuse 13 in the Power Distribution Center (PDC)to circuit A22. Circuit A22 powers circuit F71through fuse 17 in the fuse block. Circuit F71 con-nects to the ATC module and the recirculation doormotor.

When the ignition switch is in the START or RUNposition, it connects circuit A1 from PDC fuse 12 tocircuit A21. Circuit A21 powers circuit F83 throughfuse 5 in the PDC. Circuit F83 powers the coil side ofthe A/C compressor clutch relay and the A/C lowpressure switch.

Circuit A19 from fuse 11 in the PDC connects tothe blower power module and to the coil and contactside of the high speed blower motor relay.

Circuit A4 from fuse 1 in the PDC powers circuitF60 through fuse 8 in the fuse block. Circuit F60 con-nects to the ATC module.

AUTOMATIC TEMPERATURE CONTROL (ATC)MODULE

Circuits F71 supplies battery voltage to the Auto-matic Temperature Control (ATC) module when theignition switch is in the RUN position. Circuit F60from fuse 8 in the fuse block connects to the ATCmodule. Circuit F60 is HOT at all times. Refer toGeneral Information. Circuit Z1 provides ground forthe ATC module.

Circuit E2 from the dimming module connects tothe ATC module. Circuit L90 from the headlampswitch supplies power for illumination to the ATCmodule when the headlamp switch is in the PARK orON positions.

Circuit G25 from the US/Metric switch in the over-head console connects to the ATC module. CircuitG25 also connects to the Vehicle Information Center(VIC).

Circuits D1 and D2 for the CCD Bus connect to theATC module. Circuits D1 and D2 also splice to thePowertrain Control Module (PCM) data link connec-tor.

AMBIENT TEMPERATURE SENSORThe ambient temperature sensor is a variable re-

sistor. Circuit C8 from the ATC module connects tothe ambient temperature sensor. Circuit D41 pro-vides ground for the sensor. Circuit D41 connects tothe ATC module.

IN-CAR TEMPERATURE SENSORThe in-car temperature sensor is a variable resis-

tor. Circuit C47 from the ATC module connects to thein-car temperature sensor. Circuit D41 providesground for the sensor. Circuit D41 connects to theATC module.

SOLAR SENSORThe solar sensor is a variable resistor. Circuit C10

from the ATC module connects to the solar sensor.Circuit D41 provides ground for the sensor. CircuitD41 connects to the ATC module.

AIR CONDITIONING OPERATIONWhen the A/C-heater control switch is moved to an

A/C position or the defrost position, the AutomaticTemperature Control (ATC) module sends the A/C se-lect signal to the Powertrain Control Module (PCM)on circuit C90. Circuit C90 connects to cavity 28 ofthe PCM.

If the A/C low pressure and high pressure switchesare closed, the PCM receives the A/C request signalon circuit C21. The A/C low pressure and high pres-sure switches are wired in series. Circuit F83 fromfuse 5 in the Power Distribution Center (PDC) sup-plies battery voltage to low pressure switch. CircuitC3 from the low pressure switch connects to highpressure switch. Circuit C21 from the high pressureswitch connects to cavity 27 of the PCM and to thecontact side of the A/C compressor clutch relay.

After receiving the A/C request signal, the PCMsupplies ground for the coil side of A/C compressorclutch relay on circuit C13. Circuit C13 connects tocavity 34 of the PCM. Circuit F83 supplies batteryvoltage to the coil side of the relay.

When the PCM grounds the A/C compressor clutchrelay, the contacts close and connect circuits C21 andC2. Circuit C2 supplies power to the case groundedA/C compressor clutch.

ZJ 8W-42 AUTOMATIC TEMPERATURE CONTROL 8W - 42 - 3

The A/C compressor clutch has a built-in diode. Thediode controls the induced voltage that results fromthe magnetic field collapsing when the clutch disen-gages. The diode provides a current path to protectother components and systems.

HELPFUL INFORMATION• Circuit F83 is HOT when the ignition switch is inthe RUN or START position.

Circuit F83 is double crimped at the coil side of theA/C compressor clutch relay. The branch of circuitF83 from the relay connects to the A/C low pressureswitch.

RECIRCULATION DOOR MOTORCircuit F71 from fuse 17 in the Power Distribution

Center (PDC) supplies power for the recirculationdoor motor. Circuit F71 also connects to the Auto-matic Temperature Control (ATC) module. CircuitF71 is HOT when the ignition switch is in the RUNposition.

Circuits C32 and C33 from the ATC module con-nect to the recirculation door motor. Circuits C32 andC33 provide ground for the motor.

MODE DOOR MOTORCircuit C40 from the Automatic Temperature Con-

trol (ATC) module supplies 5 volts to the positionswitch in the mode door motor. The ATC module re-ceives the sensor signal from the mode door motor oncircuit C39. Circuit D41 provides ground for themode door position sensor. Circuit D41 connects tothe ATC module.

The ATC module operates the mode door motor oncircuits C37 and C38.

BLEND DOOR MOTORCircuit C40 from the Automatic Temperature Con-

trol (ATC) module supplies 5 volts to the positionswitch in the blend door motor. The ATC module re-ceives the sensor signal from the blend door motor oncircuit C39. Circuit D41 provides ground for themode door position sensor. Circuit D41 connects tothe ATC module.

The ATC module operates the mode door motor oncircuits C35 and C34.

BLOWER MOTORWhen the operator selects blower motor HIGH

speed operation, the Automatic Temperature Control(ATC) module grounds high speed blower motor relay.For any speed other than HIGH, the blower powermodule supplies battery voltage for the blower motor.

BLOWER MOTOR POWER MODULEWhen the operator selects any blower motor speed

other than HIGH, the blower motor power modulesupplies voltage for the blower motor. Circuit A19

from fuse 11 in the Power Distribution Center (PDC)supplies battery voltage to the blower motor powermodule.

The voltage level fed to the blower motor dependson the blower speed selected by the operator. Slowerspeed selections provide lower voltage to the motor.The blower motor power module feeds the blower mo-tor on circuit C42. Circuit Z4 provides ground for theblower motor and the blower motor power module.

Circuit C43 from the power module connects to theATC module. The ATC module controls feedback oncircuit C43.

HIGH SPEED BLOWER MOTOR RELAYCircuit A19 from fuse 11 in the Power Distribution

Center supplies battery voltage to the coil and con-tacts sides of the high speed blower motor relay. TheATC module provides ground for the coil side of therelay on circuit C41.

When the ATC module grounds the high speedblower motor relay, the relay contacts close and con-nect circuit A19 to circuit C42. Circuit C42 connectsto the blower motor and the ATC module. Circuit Z4provides ground for the blower motor.

DIAGRAM INDEX

Component PageA/C Compressor . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11A/C Compressor Clutch Relay . . . . . . . . . . . . . . . .8W-42-11A/C High Pressure Switch . . . . . . . . . . . . . . . . . .8W-42-11A/C Low Pressure Switch . . . . . . . . . . . . . . . . . .8W-42-11Ambient Temperature Sensor . . . . . . . . . . . . . . . .8W-42-12Automatic Temperature Control

(ATC) Module . . . . . . . . . . . . . . . . . . . .8W-42-8 thru 15Blend Air Door Motor . . . . . . . . . . . . . . . . . . . . .8W-42-14Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-9Blower Motor Power Module . . . . . . . . . . . . . . . . .8W-42-9Dimming Module . . . . . . . . . . . . . . . . . . . . . . . .8W-42-15Dimming/DRL Module . . . . . . . . . . . . . . . . . . . . .8W-42-15Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-8Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-42-8Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-9Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-42-8, 13Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-8Fuse 17 (Fuse Block) . . . . . . . . . . . . . . . . . . .8W-42-8, 13Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-42-15High Speed Blower Motor Relay . . . . . . . . . . . . . . .8W-42-9Ignition Switch . . . . . . . . . . . . . . . . . . . . .8W-42-8, 11, 13In-Car Temperature Sensor . . . . . . . . . . . . . . . . . .8W-42-12Mode Door Motor . . . . . . . . . . . . . . . . . . . . . . .8W-42-14Overhead Console . . . . . . . . . . . . . . . . . . . . . . .8W-42-15Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-42-10Recirculation Door Motor . . . . . . . . . . . . . . . . . . .8W-42-13Solar Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-12

8W - 42 - 4 8W-42 AUTOMATIC TEMPERATURE CONTROL ZJ

1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995


AIRBAG SYSTEM

AIRBAG CONTROL MODULE (ACM)Three different circuits and fuses supply battery

voltage to the Airbag Control Module (ACM), theyare A14, F20 and G5. The A14 circuit is HOT at alltimes and protected by two fuses located in cavities 3and 15 of the Power Distribution Center (PDC).

The F20 and G5 circuits are connected to separatebus bars internal to the fuse block. Different circuitsfrom the PDC and the ignition switch supply batteryvoltage to the fuse block bus bars.

The F20 circuit supplies battery voltage to theACM only when the ignition switch is in the RUNposition. The G5 circuit powers the ACM when theignition switch is in either the START or RUN posi-tion.

A bus bar internal to the ignition switch connectsthe A1 circuit from the Power Distribution Center(PDC) to the A21 circuit when the switch is in eitherthe START or RUN position. The A21 circuit suppliesbattery voltage to the fuse block bus bar that feedsthe G5 circuit. A 40 amp fuse in the PDC protects theA1 and A21 circuits. A 15 amp fuse in cavity 22 ofthe fuse block protects the G5 circuit.

When the ignition switch is in the RUN position, itconnects the A2 circuit from the PDC to the A22 cir-cuit. The A22 circuit supplies battery voltage to thefuse block bus bar that feeds the F20 circuit. A 60amp fuse in cavity 13 of the PDC protects the A2 andA22 circuits. A 15 amp fuse in cavity 18 of the fuseblock protects the F20 circuit.

The ACM has an external dedicated ground, circuitZ6.

AIRBAG IMPACT SENSORSTwo airbag impact sensors provide input to the air-

bag control module (ACM). Each sensor has two cir-cuits that connect to the ACM.

From the left impact sensor, Circuit R47 connectsto the ACM at cavity 4 of the 10-way connector. Cir-cuit R49 connects to cavity 7 of the 10 way connector.

From the right impact sensor, Circuit R46 connectsto the ACM at cavity 5 of the 10 way connector. Cir-cuit R48 connects to cavity 6 of the 10 way connector.

AIRBAG SQUIB (AIRBAG IGNITER)Two circuits, R43 and R45, connect the ACM to the

driver’s side Airbag squib (igniter) after passing

through the clock spring connector. Circuit R43 fromcavity 2 of the ACM 4-way connector connects to thesquib. Circuit R45 from cavity 1 of the ACM 4-wayconnector connects to the squib.

AIRBAG WARNING LAMPIllumination of the Airbag warning lamp is con-

trolled by the Airbag Control Module (ACM). Whenthe ACM detects a problem in the system it providesa ground for the R41 circuit. This causes the AIR-BAG lamp in the instrument cluster to illuminate.

DATA LINK CONNECTORThe airbag system used in this vehicle uses its own

dedicated data link connector. This connector is lo-cated at the rear of the center console. Circuits D7,D8, F63, and Z6 connect from the Airbag ControlModule (ACM) to the data link connector.

HELPFUL INFORMATION• Check for blown fuses in the circuits that connectto the ignition switch and in those that connect tothe ACM• While the bus bars in the fuse block power theACM, they also feed additional components on sepa-rate fuse-protected circuits• The ACM has an external dedicated ground.

DIAGRAM INDEX

Component PageAirbag Control Module . . . . . . . . . . . . . . . . . . . . .8W-43-2Airbag Squib . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-3Airbag Warning Lamp . . . . . . . . . . . . . . . . . . . . . .8W-43-2Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-43-3Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 18 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 22 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2Impact Sensors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-3

ZJ 8W-43 AIRBAG SYSTEM 8W - 43 - 1

INTERIOR LIGHTING

INDEX

page page

Chime/Buzzer Module . . . . . . . . . . . . . . . . . ........... 2Day/Night Mirror . . . . . . . . . . . . . . . . . . . . . ........... 2Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 3Dimming Module . . . . . . . . . . . . . . . . . . . . . ........... 1General Information . . . . . . . . . . . . . . . . . . . ........... 1Glove Box Lamp . . . . . . . . . . . . . . . . . . . . . ........... 2

Interior Lamps . . . . . . . . . . . . . . . . . . . . . . . ........... 1Overhead Console Lamps . . . . . . . . . . . . . . ........... 2Remote Keyless Entry . . . . . . . . . . . . . . . . . ........... 2Underhood Lamp . . . . . . . . . . . . . . . . . . . . . ........... 2Vanity Lamps . . . . . . . . . . . . . . . . . . . . . . . ........... 2

GENERAL INFORMATIONCircuit A4 from fuse 1 in the Power Distribution

Center (PDC) powers circuit M1 through the IgnitionOff Draw (IOD) fuse in cavity 5 of the fuse block. Cir-cuit M1 supplies power to the interior lamps. A standalone branch of circuit M1 connects directly to fuse 1in the PDC and the underhood lamp.

Circuit M1 also connects to the coil side of the illu-minated entry relay. The Remote Keyless Entry(RKE) module controls the illuminated entry relay.

Circuit E2 from the dimming module suppliespower for the instrument panel illumination lamps.

DIMMING MODULECircuit 352 from fuse 24 in the fuse block powers

the dimming module. Circuit L90 from the headlampswitch feeds circuit 352 through fuse 24 when theheadlamp switch is in the PARK, LOW, or LOW/FOGposition. Circuit 366 from fuse 12 in the fuse blocksupplies power to the headlamp switch for circuitL90. Circuit A6 from fuse 10 in the Power Distribu-tion Center powers circuit 366 through fuse 12.

Circuit 52 from dimming switch connects to thedimming module. The dimming module determinesthe level of illumination selected from the input it re-ceives on circuit 52.

The dimming module powers the illuminationlamps on circuit E2. Circuit E2 splices to supplypower to the following illumination lamps:• Ash receiver lamp• Cigar lighter lamp• Headlamp switch lamps• Radio lamp• Instrument cluster general illumination lamps• A/C-Heater control switch lamp• Transmission range indicator lamp• Transfer case range indicator lamp• Heated rear window switch lamp• Overdrive switch lamp• Graphic display module illumination lamps• Automatic temperature controls lamp• Overhead console illumination lamp

Circuit Z1 provides ground for all of the illumina-tion lamps except for the automatic temperature con-trols lamp and A/C-Heater switch lamp. Circuit Z4provides ground for the automatic temperature con-trols lamp. The A/C-Heater switch lamp is casegrounded.

Additionally, the headlamp switch lamps alsoground when the courtesy lamp switch is closed.When closed, the courtesy lamp switch connects theheadlamp switch lamps to circuit M2.

HELPFUL INFORMATION• On vehicles built for sale in Canada, the dimmingmodule is part of the Daytime Running Lamps (DRL)module.

INTERIOR LAMPSCircuit A4 from fuse 1 in the Power Distribution

Center (PDC) powers circuit M1 through the IgnitionOff Draw (IOD) fuse in cavity 5 of the fuse block. Cir-cuit M1 supplies power to the:• Cargo lamp• Dome/reading lamps• Key-in lamp• Left courtesy lamp• Left door courtesy lamp• Overhead console lamps• Right courtesy lamp• Right door courtesy lamp

Circuit M2 connects all of the above interior lampsto circuit Z1 through either one of the door jambswitches, liftgate switch, or liftgate glass ajar switch.With the vehicle not moving, when either the liftgate,liftgate glass or one of doors opens, these switchesclose connect circuits M2 and Z1. Circuit Z1 providesground for the lamps.

If the vehicle is equipped with Remote Keyless En-try, the illuminated entry relay connects circuit M2to ground on circuit M1.

Circuit Z1 also connects directly to the switches forthe dome/reading lamps or if equipped, overhead con-sole lamps.

ZJ 8W-44 INTERIOR LIGHTING 8W - 44 - 1

GLOVE BOX LAMPCircuit M1 from the Ignition Off Draw (IOD) fuse

in cavity 5 of the fuse block powers the glove boxlamp. A case grounded switch, in series after thelamp, closes when the glove box door is opened. Theswitch completes a path to ground on circuit Z1.

OVERHEAD CONSOLE LAMPSCircuit A4 from fuse 1 in the Power Distribution

Center (PDC) powers circuit F60 through fuse 8 inthe fuse block. Circuit F60 supplies battery voltage tothe left and right lamps.

Circuit Z2 connects directly to the switches for theleft and right lamps. When one of the switches close,circuit Z1 provides ground for that lamp.

Also, circuit M2 connects to the left and right lampin the overhead console. Circuit M2 connects thelamps to ground on circuit Z1 through either the lift-gate switch, liftgate glass ajar switch, or one of thedoor jamb switches. With the vehicle not moving,when either the liftgate, liftgate glass or one of doorsopens, these switches close connect circuits M2 andZ1. Circuit Z1 provides ground for the lamps.

REMOTE KEYLESS ENTRYWhen the operator activates the Remote Keyless

Entry (RKE) system, the RKE module grounds thecoil side of the illuminated entry relay. Circuit M1from the Ignition Off Draw (IOD) fuse in cavity 5 ofthe fuse block powers the coil side of the relay. Cir-cuit M1 is HOT at all times.

When the RKE module grounds the relay, contactsinside the relay connect circuits M2 and Z1 providingground for the following lamps:• Cargo lamp• Dome/reading lamps• Key-in lamp• Left courtesy lamp• Left door courtesy lamp• Overhead console lamps• Right courtesy lamp• Right door courtesy lamp

HELPFUL INFORMATION• The RKE module also operates the power door lockrelays. Refer to section 8W-61, Power Door Locks.

VANITY LAMPSCircuit A4 feeds circuit M1 through the Ignition Off

Draw (IOD) fuse in the cavity 5 of the fuse block.Circuit A4 originates at fuse 1 in the power distribu-tion center (PDC). Circuits A4 and M1 are HOT atall times.

Circuit M1 supplies power to the vanity lamps.When the vanity lamps switch closes, it connects thelamps to ground on circuit Z1.

UNDERHOOD LAMPA stand alone branch of circuit M1 connects di-

rectly to fuse 1 in the Power Distribution Center(PDC) and the underhood lamp. A mercury switch, inseries after the lamp, connects the lamp to ground oncircuit Z1. When the hood is raised, mercury insidethe switch moves to a position where it connects cir-cuit M1 to ground circuit Z1, illuminating the lamp.

DAY/NIGHT MIRRORWhen the ignition switch is in the RUN position, it

connects circuit A2 from fuse 13 in the Power Distri-bution Center (PDC) to circuit A22. Circuit A22 pow-ers circuit F83 through fuse 19 in the fuse block.Circuit F83 feeds the day/night mirror. Circuit Z1provides ground for the day/night mirror.

When the back-up lamps switch closes, circuit L10provides a signal to the day/night mirror. The daynight mirror turns Off when the vehicle is in reverse.

CHIME/BUZZER MODULEThe chime module sounds an audible warning tone.

The tone sounds for seat belt warning and when thekey is in the ignition switch while the drivers door isopen. The tone also sounds when the ignition key isin the ON position while the drivers side seat belt isnot buckled. Lastly, the tone sounds when the head-lamps are ON when the ignition is OFF. Refer toGroup 8U for system operation.

When the ignition switch is in the RUN position,circuit A2 from fuse 13 in the Power DistributionCenter (PDC) connects to circuit A22. Circuit A22powers circuit F83 through fuse 19 in the fuse block.Circuit F83 connects to the chime module.

Circuit A4 in the PDC powers circuit F60 throughfuse 8 in the fuse block. Circuit F60 supplies batteryvoltage to the chime module. Circuits A4 and F60 areHOT at all times. Circuit Z1 provides ground for thechime module.

One branch of circuit G26 connects the chime mod-ule to the headlamp switch. Another branch of circuitG26 connects the chime module to the ignition key-inswitch. Circuit G16 connects the key in switch to theheadlamp switch and left front door jamb switch.When the parking lamps or headlamps are ON, theheadlamp switch connects circuit G26 from the chimemodule to circuit G16.

If the headlamps are ON and the drivers dooropens, ground for the chime module is through theheadlamp switch on circuit G26. From the headlampswitch the ground path continues on circuit G16through the drivers door jamb switch to ground oncircuit Z1.

If the headlamps are OFF with the key in the ig-nition while the drivers side door is open, ground forthe chime module is through the key-in switch on cir-

8W - 44 - 2 8W-44 INTERIOR LIGHTING ZJ

cuit G26. From the key-in, the ground path continueson circuit G16 through the drivers door jamb switchto ground on circuit Z1.

Circuit G13 from the chime module powers the seatbelt warning lamp in the instrument cluster. CircuitZ1 at the instrument cluster provides ground for thelamp.

Circuit G10 from the chime module connects to theseat belt switch. When the seat belt switch closes apath to ground is completed on circuit Z1 and thetone sounds momentarily.

The chime module connects to the Vehicle Informa-tion Center (VIC) on circuit G81.

HELPFUL INFORMATION• Circuit F83 is double crimped at the chime moduleand branches to the dimming module.• The chime module also controls the ground for thepower door lock relay on circuit P57. The chime mod-ule prevents the doors from locking by not groundingthe coil side of the power door lock relay.

DIAGRAM INDEX

Component PageA/C-Heater Control Switch . . . . . . . . . . . . . . . . . .8W-44-15Ash Receiver Lamp . . . . . . . . . . . . . . . . . . . . . .8W-44-14Automatic Temperature Control (ATC) Module . . . . .8W-44-16Cargo Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-6Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-11Cigar Lighter Lamp . . . . . . . . . . . . . . . . . . . . . .8W-44-14Day/Night Mirror . . . . . . . . . . . . . . . . . . . . . . . .8W-44-10Dimming/DRL Module . . . . . . . . . . . . .8W-44-13, 14, 15, 16Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-7Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-44-4, 8, 9, 11Fuse 5 (Fuse Block) . . . . . . . . . . . . . . .8W-44-4, 5, 6, 7, 9Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-44-11Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-13Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-44-13Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-44-10, 11Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . .8W-44-4, 8, 9, 11Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . .8W-44-10, 11Fuse 24 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-44-13Glove Box Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-4Graphic Display Module . . . . . . . . . . . . . . . . . . . .8W-44-16Headlamp Switch . . . . . . . . . . . . . . . . . . . . .8W-44-12, 13Heated Rear Window Switch . . . . . . . . . . . . . . . .8W-44-16Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-44-10, 11Illuminated Entry Relay . . . . . . . . . . . . . . . . . . . . .8W-44-9Illumination Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-44-14Key-In Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-5Key-In Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12Left Front Door Jamb Switch . . . . . . . . . . . . . . . . .8W-44-5Left and Right Courtesy Lamps . . . . . . . . . . . . . . .8W-44-5Left Front Door Courtesy Lamp . . . . . . . . . . . . . . .8W-44-6Left Rear Door Jamb Switch . . . . . . . . . . . . . . . . .8W-44-5Liftgate Glass Ajar Switch . . . . . . . . . . . . . . . . . . .8W-44-6Liftgate Door Switch . . . . . . . . . . . . . . . . . . . . . .8W-44-6Overhead Console Lamps . . . . . . . . . . . . . . . . . . .8W-44-8Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-14Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-7Remote Keyless Entry (RKE) Module . . . . . . . . . . . .8W-44-9Right Front Door Jamb Switch . . . . . . . . . . . . . . . .8W-44-6Right Front Door Courtesy Lamp . . . . . . . . . . . . . .8W-44-6Right Rear Door Jamb Switch . . . . . . . . . . . . . . . .8W-44-6Seat Belt Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12Seat Belt Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12Transfer Case Range Lamp . . . . . . . . . . . . . . . . .8W-44-15Transmission Range Indicator Lamp . . . . . . . . . . . .8W-44-15Underhood Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-4Vanity Mirror Lamps . . . . . . . . . . . . . . . . . . . . . .8W-44-7Vehicle Information Center (VIC) . . . . . . . . . . .8W-44-12, 16

ZJ 8W-44 INTERIOR LIGHTING 8W - 44 - 3

1995 Grand CherokeePublication No. 81-370-5147TSB 26-01-96 January, 1996

MESSAGE CENTER

CONTENTS

page page

GRAPHIC DISPLAY MODULE . . . . . . . . ........... 3 VEHICLE INFORMATION CENTER . . . . ........... 1

GENERAL INFORMATIONThis section of the wiring diagrams is divided into

two sub-sections; Vehicle Information Center (VIC),

and Graphic Display. When referring to the circuitdescriptions or wiring diagrams, ensure that you usethe correct sub-section.

VEHICLE INFORMATION CENTER

INDEX

page page

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2Door Ajar Display . . . . . . . . . . . . . . . . . . . . ........... 2General Information . . . . . . . . . . . . . . . . . . . ........... 1Lamp Outage . . . . . . . . . . . . . . . . . . . . . . . ........... 1Liftgate Ajar Display . . . . . . . . . . . . . . . . . . . ........... 2

Low Engine Coolant Warning . . . . . . . . . . . . ........... 2Low Washer Fluid Warning . . . . . . . . . . . . . ........... 1Transfer Case Range Display . . . . . . . . . . . ........... 2US/Metric Display . . . . . . . . . . . . . . . . . . . . ........... 1

GENERAL INFORMATIONSeveral fuses supply power to the Vehicle Informa-

tion Center (VIC). Circuit A4 from fuse 1 in thePower Distribution Center (PDC) feeds circuit F60through fuse 8 in the fuse block. Circuit F60 suppliesbattery voltage to the VIC. Circuits A4 and F60 areHOT at all times.

When the ignition switch is in the RUN position itconnects circuit A2 from fuse 13 in the PDC to circuitA22. Circuit A22 feeds circuit F83 through fuse 19 inthe fuse block. Circuit F83 supplies voltage to theVIC.

Circuit A6 from fuse 10 in the PDC powers circuit366 through fuse 12 in the fuse block. Circuit 366connects to the headlamp switch. When the head-lamp switch is in the PARK, LOW or LOW/FOG po-sition, it connects circuit 366 to circuit L90. CircuitL90 connects to the VIC. When the VIC senses volt-age on circuit L90, it monitors circuit E2 from the in-terior lamps dimming switch to determine theselected display intensity.

Circuit L5 from the flasher relay connects to theVIC. Circuit L5 powers the turn signal switch cir-cuitry in the multi-function switch.

The VIC receives the vehicle speed sensor signal oncircuit G7. The input tells the VIC when the vehicleis moving.

Circuit G81 connects the VIC to the tone circuitryin the chime module.

Circuit Z1 provides ground for the VIC. Circuit Z1connects to three cavities of the VIC.

US/METRIC DISPLAYCircuit G25 connects the Vehicle Information Cen-

ter (VIC) to the US/Metric switch in the overheadconsole. The switch allows the operator to select thedisplay to appear in either metric or english units ofmeasure.

HELPFUL INFORMATION• The vehicle is equipped with a two-way connectorlocated behind the VIC. The connector grounds twocavities of the VIC and causes the VIC to displayonly metric units of measure.• Circuit G25 also connects to the Automatic Tem-perature Control (ATC) module (if equipped).

LAMP OUTAGECircuit G46 connects from the Lamp Outage Mod-

ule (LOM) to the Vehicle Information Center (VIC).Circuit G46 supplies the rear lamp out signal to theVIC.

LOW WASHER FLUID WARNINGWhen the low washer fluid switch closes, it con-

nects circuit G29 from the Vehicle Information Cen-

ZJ 8W-46 MESSAGE CENTER 8W - 46 - 1

ter VIC to ground on circuit Z1. The VIC displays theLow Washer Fluid warning when the switch closes.

LOW ENGINE COOLANT WARNINGWhen the coolant level switch closes, it connects

circuit G18 from the Vehicle Information Center VICto ground on circuit Z1. The VIC displays the LowCoolant Level warning when the switch closes.

DOOR AJAR DISPLAYEach door has an ajar switch that connects to the

Vehicle Information Center (VIC). When a dooropens, the case grounded ajar switch closes and con-nects the VIC to ground. In response, the VIC dis-plays which door is open.

LIFTGATE AJAR DISPLAYThe liftgate ajar switch and liftgate glass ajar

switch connect to the Vehicle Information Center(VIC). When either the liftgate or liftgate glassopens, the ajar switch closes and connects the VIC toground on circuit Z1. In response, the VIC displaysthat the lift gate is open.

TRANSFER CASE RANGE DISPLAYWhen the transfer case is in either 4WD Low, Part

Time 4WD, or Full Time it connects circuit G28 fromthe Vehicle Information Center (VIC) to ground oncircuit Z1. In response, the VIC illuminates the 4WDdisplay.

When the transfer case switch is in 4WD Low, itconnects circuit G28 from the VIC to ground on cir-cuit Z1. In addition to illuminating the 4WD display,the VIC also illuminates the LOW display.

When the transfer case switch is in Part Time4WD position, it connects circuit 107 from the VIC to

ground on circuit Z1. In addition to illuminating the4WD display, the VIC also illuminates the PARTTIME display.

When the transfer case switch is in Full Time 4WDposition, it connects circuit 106 from the VIC toground on circuit Z1. In addition to illuminating the4WD display, the VIC also illuminates the FULLTIME display.

DIAGRAM INDEX

Component PageAutomatic Temperature Control (ATC) Module . . . . . .8W-46-7Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-8Door Ajar Switches . . . . . . . . . . . . . . . . . . . . . . .8W-46-9Engine Coolant Level Sensor . . . . . . . . . . . . . . . . .8W-46-8Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-6Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-46-6Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-6Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Lamp Outage Module . . . . . . . . . . . . . . . . . . . . . .8W-46-7Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-46-9Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-46-9Overhead Console . . . . . . . . . . . . . . . . . . . . . . . .8W-46-7Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-5Vehicle Information Center (VIC) . . . . . . . . . .8W-46-4 thru 9Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . . .8W-46-8Washer Fluid Level Sensor . . . . . . . . . . . . . . . . . .8W-46-8

8W - 46 - 2 8W-46 VEHICLE INFORMATION CENTER ZJ

GRAPHIC DISPLAY MODULE

GENERAL INFORMATIONSeveral fuses supply power to the Graphic Display

Module (GDM). When the ignition switch is in theRUN position it connects circuit A2 from fuse 13 inthe PDC to circuit A22. Circuit A22 feeds circuit F83through fuse 19 in the fuse block. Circuit F83 sup-plies voltage to the GDM.

Circuit A6 from fuse 10 in the PDC powers circuit366 through fuse 12 in the fuse block. Circuit 366connects to the headlamp switch. When the head-lamp switch is in the PARK, LOW or LOW/FOG po-sition, it connects circuit 366 to circuit L90. CircuitL90 connects to the GDM. When the GDM sensesvoltage on circuit L90, it monitors circuit E2 from theinterior lamps dimming switch to determine the se-lected display intensity.

Circuit Z1 provides ground for the GDM. Circuit Z1connects to three cavities of the GDM.

TRANSFER CASE RANGE DISPLAYWhen the transfer case is in either 4WD Low, Part

Time 4WD, or Full Time it connects circuit G28 fromthe Graphic Display Module (GDM) to ground on cir-cuit Z1. In response, the GDM illuminates the 4WDdisplay.

When the transfer case switch is in 4WD Low, itconnects circuit G28 from the GDM to ground on cir-

cuit Z1. In addition to illuminating the 4WD display,the GDM also illuminates the LOW display.

When the transfer case switch is in Part Time4WD position, it connects circuit 107 from the GDMto ground on circuit Z1. In addition to illuminatingthe 4WD display, the GDM also illuminates thePART TIME display.

When the transfer case switch is in Full Time 4WDposition, it connects circuit 106 from the GDM toground on circuit Z1. In addition to illuminating the4WD display, the GDM also illuminates the FULLTIME display.

DIAGRAM INDEX

Component PageFuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4Graphic Display Module (GDM) . . . . . . . . . . . . . .8W-46-4, 5Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-5

ZJ 8W-46 GRAPHIC DISPLAY MODULE 8W - 46 - 3

AUDIO SYSTEMS

INDEX

page page

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2Power Amplifier and Speakers . . . . . . . . . . . ........... 1Power Antenna . . . . . . . . . . . . . . . . . . . . . . ........... 2Radio Illumination . . . . . . . . . . . . . . . . . . . . ........... 1

Radio Memory . . . . . . . . . . . . . . . . . . . . . . . ........... 1Radio Operation . . . . . . . . . . . . . . . . . . . . . ........... 1Speakers—Standard Radio . . . . . . . . . . . . . ........... 1

RADIO OPERATIONThere are two audio systems offered on this vehi-

cle. The standard system uses four speakers and astandard antenna. The optional system has sixspeakers, power amplifier, and a power antenna.

Both systems are powered by circuit X12 from the10 amp fuse located in cavity 10 of the fuse block.This fuse is HOT when the ignition switch is in theACCESSORY or RUN position.

Power for the fuse is supplied on circuit A31 fromthe ignition switch. Power for the A31 circuit is sup-plied by circuit A1 from the Power Distribution Cen-ter (PDC). The A1 circuit is protected by a 40 ampfuse located in cavity 12 of the PDC.

The standard and optional radios use an externalground.

RADIO MEMORYBoth the standard and optional radios are con-

nected to the Ignition-Off Draw (IOD) fuse located inthe Power Distribution Center (PDC) cavity 1. TheIOD fuse is a 20 amp and supplies power to fuse 5and fuse 8 in the fuse block on circuit A4. From fuse8, circuit F60 supplies power to the radio.

For additional information on the IOD fuse, referto section 8W-10. The IOD fuse is removed during ve-hicle shipping to prevent excessive battery draw.

RADIO ILLUMINATIONWhen the parking lamps or the headlamps are ON,

circuits E2 and L90 are used to power the radio illu-mination lamps. Circuit E2 is used for the dimmablelamps. Circuit L90 is the parking lamps feed.

SPEAKERS—STANDARD RADIOThe standard radio uses four speakers. Circuit X53

feeds the speaker in the left front door. Circuit X55 isthe return from the speaker to the radio.

Circuit X54 feeds the right front door speaker. Cir-cuit X56 is the return from the speaker to the radio.

From the radio, circuit X51 connects to circuit X52at the jumper harness for the left rear door speaker.Circuit X51 and X52 feed the speaker. Circuit X58

from the speaker jumper harness connects to circuitX57. Circuit X57 is the return from the speaker tothe radio.

Circuit X52 feeds the right rear door speaker. Cir-cuit X58 is the return from the speaker to the radio.Circuits X52 and X58 continue through the jumperharness to the right rear door speaker.

POWER AMPLIFIER AND SPEAKERSThe power amplifier is used on the optional system

only. It is connected between the radio and thespeakers. Circuit F75 from fuse 4 in the fuse blocksupplies battery voltage to the radio amplifier. Cir-cuit Z1 provides ground for the amplifier. Circuit X64which connects to circuit X60 from the radio at thepower antenna relay, supplies voltage to the ampli-fier.

From the radio, circuits X54 and X56 for the rightfront speaker and the tweeter in the right side of theinstrument panel, connect to the power amplifier.Circuit X54 is the feed from the radio to the ampli-fier. Circuit X82 is the feed from the amplifier to theright tweeter and right front door speaker. CircuitX80 is the return from the tweeter and speaker tothe amplifier and circuit X56 is the return from theamplifier to the radio. Circuits X80 and X82 from theamplifier connect to circuits X56 and X54 at thejumper harness for the right front door speaker.

For the left front door speaker and the tweeter inthe left side of the instrument panel, circuits X53and X55 from the radio connect to the power ampli-fier. Circuit X53 is the feed from the radio to the am-plifier. Circuit X87 is the feed from the amplifier tothe left tweeter and left front door speaker. CircuitX85 is the return from the tweeter and speaker tothe amplifier and circuit X55 is the return from theamplifier to the radio. Circuits X87 and X85 from theamplifier connect to circuits X55 and X53 at thejumper harness for the left front door speaker.

Circuit X51, the feed for the left rear door speakerand circuit X57, the return for the speaker, connectfrom the radio to the power amplifier. At the jumper

ZJ 8W-47 AUDIO SYSTEM 8W - 47 - 1

harness for the left rear door speaker, circuit X93from the amplifier connects to circuit X52 and circuitX91 connects to circuit X58. Circuits X93 and X52feed the speaker. The speaker return is on CircuitX58 and circuit X91.

Circuit X52, the feed for the right rear doorspeaker and circuit X58, the return for the speaker,connect from the radio to the power amplifier. At thejumper harness for the right door speaker, circuitX94 from the amplifier connects to circuit X52 andcircuit X92 connects to circuit X58. Circuits X94 andX52 feed the speaker. The speaker return is on cir-cuits X58 and X92.

POWER ANTENNAThe power antenna relay supplies voltage to the

power antenna motor. A switch in the relay suppliesvoltage to the antenna motor to either raise or lowerthe antenna.

Circuit A7 from fuse 14 in the Power DistributionCenter (PDC) supplies battery voltage to circuit A18through fuse 1 in the fuse block. Circuit A18 suppliespower to the switch inside the power antenna relay.

When the radio is OFF, the switch in the power an-tenna relay is in the DOWN position. In DOWN po-sition, the switch connects circuit A18 to circuit X14.Circuit X14 supplies voltage to power antenna motorto lower the antenna. The ground path is from themotor to the relay on circuit X16, through the switchin the relay to ground on circuit Z1.

Circuit Z1 provides ground for the coil side of thepower antenna relay. When the radio is turned ON,circuit X60 from the radio supplies power to the coilside of relay and the relay switches to the UP posi-

tion. In the UP position, the switch connects circuitA18 to circuit X16. Circuit X16 supplies voltage topower antenna motor to raise the antenna. Theground path is from the motor to the relay on circuitX17, through the switch in the relay to ground on cir-cuit Z1.

HELPFUL INFORMATIONAt the power antenna relay, circuit X60 connects to

circuit X64. Circuit X64 connects to the radio ampli-fier.

Although the radio is connected to the CCD bus, itdoes not transmit or receive data during this modelyear.

DIAGRAM INDEX

Component PageFuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-47-7Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Fuse 4 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-47-6Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Fuse 10 (Fuse Block) . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5, 6, 7Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . .8W-47-6, 7Power Antenna . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-7Power Antenna Relay . . . . . . . . . . . . . . . . . . . . . .8W-47-7Radio . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3 thru 9Speakers—Standard Radio . . . . . . . . . . . . . . . . . .8W-47-4Speakers—Premium Radio . . . . . . . . . . . . . . . . .8W-47-8, 9

8W - 47 - 2 8W-47 AUDIO SYSTEM ZJ

HEATED REAR WINDOW

HEATED REAR WINDOWThe heated rear window relay, located in the relay

center under the glove box, supplies power to heatedrear window grid. When the operator depresses theheated rear window switch, the contacts inside theswitch momentarily close and circuit C80 connectsthe relay timer to ground on circuit Z1. This causesthe relay to change state and complete a circuit toenergize the coil side of the relay and start the relaytimer. Circuit F83 from fuse 19, a 15 amp, in the fuseblock supplies voltage to the coil and contact sides ofthe relay. Circuit Z1 provides ground for the relay.

When the heated rear window relay energizes, thecontacts inside the relay close and connect circuitF83 to circuit C15. Fuse 19, a 15 amp, in the fuseblock protects circuit F83.

Power for the relay is supplied on circuit F82. Thiscircuit is protected by a 30 amp circuit breaker lo-cated in cavity 28 of the fuse block. Power for the cir-cuit breaker is supplied on circuit A7 from the PowerDistribution Center (PDC). The A7 circuit is pro-tected by a 40 amp fuse located in cavity 14.

Circuit C15 is spliced in the instrument panel har-ness and supplies voltage from the closed contacts inthe switch to the heated rear window grid, the heat-ers in the power mirrors, and the Light Emitting Di-ode (LED) in the switch.

Ground for the heated rear window grid is suppliedon circuit Z1.

HELPFUL INFORMATION• When the ignition switch is in the START or RUNpositions, it connects circuit A2 from fuse 13, a 60amp, in the PDC to circuit A22. Circuit A22 suppliesbattery voltage to the fuse block bus bar that powerscircuit F83 through the fuse in cavity 19.• Circuit A7 from PDC fuse 14, a 40 amp, suppliesbattery voltage to the fuse block bus bar that feedsthe 30 amp circuit breaker in fuse cavity 28.• Check for broken grid lines on the window.• Check for a broken bus bar or disconnected leadsat the rear window.

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 28) . . . . . . . . . . .8W-48-2Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-48-2Fuse 23 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-48-3Heated Rear Window Grid . . . . . . . . . . . . . . . . . . .8W-48-3Heated Rear Window Relay . . . . . . . . . . . . . . . . . .8W-48-2Heated Rear Window Switch . . . . . . . . . . . . . . . . .8W-48-3Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2

ZJ 8W-48 HEATED REAR WINDOW 8W - 48 - 1

OVERHEAD CONSOLE

INDEX

page page

Overhead Console . . . . . . . . . . . . . . . . . . . . . . . . . 1 Diagram Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

OVERHEAD CONSOLEWhen the ignition switch is in the RUN position, it

connects circuit A2 from fuse 13 in the Power Distri-bution Center (PDC) to circuit A22. Circuit A22 sup-plies power to circuit F83 through fuse 19 in the fuseblock. Circuit F83 supplies power to the overheadconsole.

When the headlamps or parking lamps are ON,circuits L90 and E2 provide voltage to the overheadconsole for illumination. Voltage on circuit L90 in-forms the overhead console that the headlamps orparking lamps are ON. Circuit E2 from the dimmingmodule (or dimming/DRL module on Canadian ve-hicles) powers the illumination lamps in the overheadconsole.

Circuit G44 from the fuel level sending unit sendsthe fuel level signal to the overhead console. CircuitZ2 provides ground for the overhead console and thefuel level sending unit.

US/METRIC SWITCHIf the vehicle is equipped with Automatic Tempera-

ture Control (ATC), circuit G25 from the US/Metricswitch in the overhead console connects to the ATCmodule (Fig. 1). Circuit G25 also connects to thegraphic display module or vehicle information center(if equipped).

If the vehicle is not equipped with ATC, circuit G25connects to a connector that when connected, causesthe overhead console to display metric units only.Refer to Group 8W-C, Overhead Console.

AMBIENT TEMPERATURE SENSORThe ambient temperature sensor is a variable resis-

tor. Circuit C8 supplies voltage from the overheadconsole to the sensor. Circuit D41 is the signal returnfrom the sensor to the overhead console.

CCD BUSThe overhead console connects to the CCD bus on

circuits D1 and D2. Circuits D1 and D2 are a twistedpair of wires.

Fig. 1 U/S Metric Switch

ZJ 8W-49 OVERHEAD CONSOLE 8W - 49 - 1

DIAGRAM INDEX

Component PageABS Control Module . . . . . . . . . . . . . . . . . . . . . . .8W-49-5ABS Data Link Connector . . . . . . . . . . . . . . . . . . . .8W-49-5Ambient Temperature Sensor . . . . . . . . . . . . . . . . .8W-49-3Automatic Temperature Control (ATC) Module . . . . . . .8W-49-5Dimming Module/DRL Module . . . . . . . . . . . . . . . . .8W-49-4Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-4Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-49-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-49-3Graphic Display Module . . . . . . . . . . . . . . . . . . . . .8W-49-4Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Overhead Console . . . . . . . . . . . . . . . . . . . . .8W-49-3, 4, 5Powertrain Control Module . . . . . . . . . . . . . . . . . . .8W-49-5

8W - 49 - 2 8W-49 OVERHEAD CONSOLE ZJ

FRONT LIGHTING

INDEX

page page

Auto Headlamp Module . . . . . . . . . . . . . . . . ........... 2Daytime Running Lamps Module . . . . . . . . . ........... 2Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 3

Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Headlamp Switch . . . . . . . . . . . . . . . . . . . . ........... 1Instrument Panel Dimming Module . . . . . . . . ........... 2

HEADLAMP SWITCHThe headlamp switch has five positions: AUTO,

OFF, PARK, LOW, and LOW/FOG. The headlampswitch also has a position for the courtesy lamps anda cancelling switch connected to the instrumentpanel dimming module.

Circuit A6 from fuse 10 in the PDC connects to theheadlamp switch. Circuit A6 also feeds circuit 366through fuse 12 in the fuse block. Circuit 366 con-nects to the headlamp switch.

The headlamp switch has an internal circuitbreaker that connects circuit A6 to circuit F34. Cir-cuit F34 connects to the dimmer switch circuitry inthe multi-function switch.

Circuit A7 from fuse 14 in the PDC feeds circuitL11 through fuse 7 in the fuse block. Circuit L11 con-nects to the dimmer switch circuitry in the multi-function switch, supplying power for the high beams.

When the courtesy lamp switch closes, the head-lamp switch connects circuit M2 from the courtesylamps to circuit Z1. Circuit Z1 provides ground to il-luminate the courtesy lamps.

The cancelling switch in the headlamp switch con-nects circuit 52 from the instrument panel dimmingmodule to ground on circuit Z1. The switch eitherconnects circuit 52 directly to ground on circuit Z1(cancelling switch closed) or through a resistor toground on circuit Z1 (cancelling switch open).

Circuit E2 powers the illumination lamps in theheadlamp switch. Circuit Z1 provides ground for theillumination lamps.

HEADLAMP SWITCH IN PARKING LAMPPOSITION

When the PARK lamps are ON, the headlampswitch connects circuit 366 to circuit L90. From theheadlamp switch, circuit L90 branches to power theoptional lamp outage module, front parking lampsand rear tail lamps, side marker lamps, and rear li-cense plate lamps. Circuit L90 also connects to theoverhead console, fuse 24 in the fuse block, VehicleTheft Alarm (VTA) module, HVAC module, and radio.

Circuit Z1 provides a ground for the parking lampsand side marker lamps. The Z1 circuit also provideground for the headlamps.

Circuit L11 connects to the dimmer switch portionof the multi-function switch. Circuit L11 suppliespower for the high beams on circuit L3 when the op-erator flashes the headlamps with the turn signalstalk of the multi-function switch.

HELPFUL INFORMATION• Check fuse 10 in PDC.• Check fuse 12 in the fuse block.

HEADLAMP SWITCH IN ON POSITIONWhen the headlamp switch is in the ON position,

circuit A6 from fuse 10 in the Power DistributionCenter (PDC) connects to circuit F34. Circuit F34connects to the dimmer switch portion of the multi-function switch and feeds circuit L4. Circuit L4 pow-ers the low beam of the headlamps. When the foglamps are on, circuit L4 powers the lamp for the foglamp switch. Circuit L4 connects to the instrumentpanel dimming module.

When the operator selects high beam operationwith the turn signal stalk of the multi-functionswitch, circuit L11 connects to the L3 circuit. CircuitL3 powers high beam operation. Circuit L3 also con-nects to the instrument panel dimming module andVehicle Theft Alarm (VTA) module.

HEADLAMP GROUNDCircuit Z1 provides ground for both the right and

left headlamps. Circuit Z1 also supplies ground theturn signal lamps, and if equipped, the fog lamps.

HELPFUL INFORMATION• Check fuses 10 and 14 in the PDC.• Check fuse 7 in the fuse block.• The headlamp switch has an internal circuitbreaker.• The auto headlamp module powers circuit F34when the headlamp switch is in the AUTO position.• Circuit L11 is double crimped at the multi-functionswitch. The L11 branch from the multi-functionswitch connects to the Vehicle Theft Alarm (VTA)module.• Circuit 366 is double crimped at the headlampswitch. The circuit 366 branch from the headlampswitch connects to the auto headlamp module.

ZJ 8W-50 FRONT LIGHTING 8W - 50 - 1

FOG LAMPSThe fog lamps are controlled by the headlamp

switch and the fog lamp relay. The fog lamps operateonly when the headlamp switch is in the LOW/FOGposition. When the headlamps are in high-beam op-eration, the fog lamps will not operate.

Circuit F34 from the headlamp switch connects tothe dimmer switch and feeds the low beams on cir-cuit L4. When the low beams are on, circuit L4 fromthe dimmer switch feeds the coil side of the fog lamprelay. When the headlamp switch is in the LOW/FOGposition, it connects circuit L35 from the coil side ofthe relay to circuit Z1. Circuit Z1 provides ground forthe relay. When just the LOW beams are on, theheadlamp switch does not ground the coil side of thefog lamp relay.

After the coil side of the relay energizes, the con-tacts in the relay close. When the relay contactsclose, they connect circuit L34 from fuse 4 in thePower Distribution Center (PDC) to circuit L39. Cir-cuit L39 powers the fog lamps. Circuit Z1 providesground for the fog lamps.

FOG LAMP SWITCH ILLUMINATIONA Light Emitting Diode (LED) illuminates the fog

lamp switch. Circuit L4 is double crimped at the foglamp relay and supplies power to the LED throughan additional diode and resistor in the headlampswitch. When the headlamp switch is in the LOW/FOG position, the switch connects the LED to circuitZ1. Circuit Z1 provide ground to illuminate the LED.

AUTO HEADLAMP MODULEWhen the headlamp switch is in the AUTO posi-

tion, the auto headlamp module powers the head-lamps. A light sensor provides the input used by themodule to determine if driving conditions warrantoperating with the headlamps on.

Circuit A6 from fuse 10 in the Power DistributionCenter (PDC) supplies battery voltage to circuit L26through the circuit breaker in the headlamp switch.Circuit L26 powers the auto headlamp module. Cir-cuits A6 and L26 are HOT at all times.

Circuit A6 also powers circuit 366 through fuse 12in the fuse block. Circuit 366 is double crimped atthe headlamp switch. The branch of circuit 366 fromthe headlamp switch connects to the auto headlampmodule.

When the ignition switch is in the RUN position, itconnects circuit A2 from fuse 13 in the PDC to circuitA22. Circuit A22 powers circuit F83 through fuse 19in the fuse block. Circuit F83 connects to the autoheadlamp module.

Circuit Z1 provides ground for the auto headlampmodule. When the headlamp switch is in the AUTOposition, it connects circuit L24 from the auto head-lamp module to ground on circuit Z1. Circuit Z1 alsoconnects directly to the auto headlamp module.

Circuit L109 from the auto headlamp powers thelight sensor. Circuit L110 provides the input from thesensor to the auto headlamp module.

Circuit L90 from the headlamp switch powers theparking lamps and connects to the auto headlampmodule.

When the headlamp switch is in the AUTO posi-tion, the auto headlamp module powers circuit F34.Circuit F34 connects to the dimmer switch. The dim-mer switch connects circuit F34 to circuit L4. CircuitL4 powers the low beams of the headlamps.

HELPFUL INFORMATION• The headlamp switch powers circuit F34 when theswitch is in the LOW or LOW/FOG position.

DAYTIME RUNNING LAMPS MODULEOn Canadian models, the instrument panel dim-

ming module and Daytime Running Lamps (DRL)module are the same. The Instrument Panel Dim-ming/DRL module operates the low beams of theheadlamps when the ignition is in the RUN position.

In the RUN position, the ignition switch connectscircuit A2 from fuse 13 in the Power DistributionCenter (PDC) to circuit A22. Circuit A22 suppliespower to circuit F83 through fuse 19 in the fuseblock. Circuit F83 splices to the Instrument PanelDimming/DRL module.

Circuit L26 from the headlamp switch also con-nects to the Instrument Panel Dimming/DRL module.

Circuit L4 powers the low beams of the left andright headlamps. When the headlamp switch is OFF,the Instrument Panel Dimming/DRL module powersthe low beams on circuit L4. When the headlampsare ON, the dimmer switch in the multi-functionswitch powers the low beams on circuit L4.

Circuit L3 feeds the high beams of the headlamps.When the operator flashes the headlamps with thestalk of the multi-function switch, the DRL sensesvoltage on circuit L3. When it senses voltage on cir-cuit L3, the Instrument Panel Dimming/DRL modulestops supplying power to the low beams on circuitL4.

Circuit Z1 provides ground for the InstrumentPanel Dimming/DRL module.

8W - 50 - 2 8W-50 FRONT LIGHTING ZJ

DIAGRAM INDEX

Component PageAutomatic Headlamp Light Sensor . . . . . . . . . . . . . .8W-50-9Automatic Headlamp Module . . . . . . . . . . . . . . . . .8W-50-9Dimming Module/DRL Module . . . . . . . . . . . . .8W-50-10, 11Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fuse 4 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fuse 7 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-50-5Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-50-4, 8Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-50-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-50-9, 11Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-5Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-50-11Automatic Headlamp Light Sensor . . . . . . . . . . . . . .8W-50-9Fuse 24 (Fuse Block) . . . . . . . . . . . . . . . . . . .8W-50-4, 10Headlamp Dimmer Switch . . . . . . . . . . . . . . . . . . .8W-50-5Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-4, 8Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-9, 11Marker Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-10Park Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7

ZJ 8W-50 FRONT LIGHTING 8W - 50 - 3

REAR LIGHTING

TAIL LAMPS, REAR LICENSE PLATE LAMPS ANDSIDE MARKER LAMPS

The headlamp switch has five positions: AUTO, OFF,PARK, LOW, and LOW/FOG. The headlamp switch alsohas a position for the courtesy lamps and a cancellingswitch connected to the instrument panel dimming mod-ule.

Circuit A6 from fuse 10 in the PDC connects to theheadlamp switch. Circuit A6 also feeds circuit 366through fuse 12 in the fuse block. Circuit 366 con-nects to the headlamp switch.

When the headlamp switch is in the PARK or LOWposition, the switch connects circuit 366 to circuitL90. From the headlamp switch, circuit L90 branchesto power the front parking lamps, side marker lamps,and rear tail lamps, and license plate lamps.

Circuit Z1 provides a ground for the parking lamps,tail lamps, and rear license plate lamps.

HELPFUL INFORMATION• If the vehicle is equipped with factory installedtrailer tow, circuit L90 connects to the trailer towharness.• Check fuse 10 in PDC.• Check fuse 12 in the fuse block.

STOP LAMPS AND CHMSL LAMPSCircuit A7 from fuse 14 in the Power Distribution

Center (PDC) supplies voltage to circuit L16 throughfuse 2 in the fuse block. Circuit L16 connects to thestop lamp switch.

When the operator depresses the brake pedal, thestop lamp switch closes and connects circuit L16 tocircuit L50. Circuit L50 connects to the stop lampsand Center High Mounted Stop Lamps (CHMSL).Circuit Z1 provides a ground for the stop lamps andCHMSL lamps.

HELPFUL INFORMATION• Check fuses 4 and 15 in the PDC.• Check for continuity across the stop lamp switchwhen it is closed.• If the vehicle is equipped with the Lamp OutageModule (LOM), circuit L50 connects to the LOM.From the LOM, circuits L87, L73 and L74 continueto the stop lamps and CHMSL.

BACK-UP LAMPSIn the RUN position, the ignition switch connects cir-

cuit A1 from fuse 12 in the Power Distribution Center(PDC) to circuit A21. Circuit A21 feeds a bus bar in thePDC that powers circuit F83 through fuse 5.

Circuit F83 supplies power to the back-up lampswitch. On automatic transmission equipped vehicles,

the back-up lamp switch is part of an assembly thatincludes the PARK/NEUTRAL position switch. Whenthe operator puts the transmission in REVERSE, theback-up lamp switch connects circuit F83 to circuitL10. Circuit L10 feeds the back-up lamps. Circuit Z1provides ground for the back-up lamps.

HELPFUL INFORMATION• Check fuses 5 and 12 in the PDC.• Check for continuity across the back-up lampswitch when it is closed.

LAMP OUTAGE MODULE (LOM)The Lamp Outage Module (LOM) determines if a

rear lighting lamp is not operating. When the igni-tion switch is in the START or RUN position, circuitA1 from fuse 12 in the Power Distribution Center(PDC) connects to circuit A22. Circuit A21 feeds cir-cuit F87 through fuse 22 in the fuse block. CircuitF87 feeds the LOM.

Circuit G46 from the LOM connects to the VehicleInformation Center (VIC). When the LOM senses ainoperative lamp, the VIC displays the data to thevehicle operator.

Circuit L90 which feeds the tail lamps and sidemarker lamps, connects to the LOM. From the LOM,circuit L90 continues to the license plate lamps. Cir-cuits L21 and L22 from the LOM power the taillamps and side marker lamps.

Circuit L50 from the stop lamp switch connects to theLOM. From the LOM, circuit L74 powers the left stoplamp and circuit L73 powers the right stop lamp.

DIAGRAM INDEX

Component PageABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-51-2Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4Back-Up Lamp Switch . . . . . . . . . . . . . . . . . . . . .8W-51-4Center High Mounted Stop Lamps (CHMSL) . . . . . . .8W-51-3Fuse 2 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-51-2Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . .8W-51-2, 4, 8Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2Fuse 22 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-51-8Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4, 8Lamp Outage Module (LOM) . . . . . . . . . . . .8W-51-3, 5, 6, 8License Plate Lamps . . . . . . . . . . . . . . . . . . . . . .8W-51-6Side Marker Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-51-5Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2Tail/Stop Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-3Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-51-7Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-51-8

ZJ 8W-51 REAR LIGHTING 8W - 51 - 1

TURN SIGNALS

ELECTRONIC FLASHER RELAYThe electronic flasher relay supplies battery volt-

age to the turn signal/hazard switch circuitry in themulti-function switch. When the ignition switch isOFF, the hazard flashers will operate but the turnsignals will not.

In the ACCESSORY or RUN position, the ignitionswitch connects circuit A2 from fuse 13 in the PowerDistribution Center (PDC) to circuit A22. Circuit A22feeds circuit L6 through fuse 16 in the fuse block.

Circuit L6 supplies power to the flasher relay. Cir-cut Z1 provides ground for the relay.

Circuit L12 from the flasher relay connects to themulti-function switch to supply power to the hazardflasher circuits. The multi-function switch connectsto the rear turn signal lamps on circuits L60 and L61and the front turn signal lamps on circuits L64 andL65.

TURN SIGNALSWhen the operator selects the right turn signal, the

multi-function switch connects circuit L5 from theflasher relay to circuits L60 and L64. Circuit L64feeds the right front turn signal lamp; circuit L60feeds the right rear turn signal lamp. Circuit L64also splices to power the right turn signal indicatorlamp in the instrument cluster.

When the operator selects the left turn signal, themulti-function switch connects circuit L5 from theflasher relay to circuits L61 and L65. Circuit L61feeds the left rear turn signal lamp; circuit L65 feedsthe left front turn signal lamp. Circuit L65 alsosplices to power the left turn signal indicator lampon the instrument cluster.

Circuit Z1 provides ground for the turn signallamps.

HELPFUL INFORMATION• The turn signal lamps are the same lamps usedfor the hazard flasher.

• Check fuse 13 in the PDC and fuse 16 in the fuseblock if the turn signals do not operate.

HAZARD FLASHERSWhen the operator selects the hazard flashers, the

multi-function switch circuit L12 from the flasherrelay circuits L60, L61, L64 and L65.

Circuit L61 feeds the left rear turn signal lamp.Circuit L60 feeds the right rear turn signal lamp.Circuit L65 feeds the left front turn signal lamp andthe instrument cluster indicator lamp. Circuit L64feeds the right front turn signal lamp and the instru-ment cluster indicator lamp.

Circuit Z1 provides ground for the hazard flasherlamps.

HELPFUL INFORMATION THE HAZARDFlasher lamps are the same lamps used for the turn

signals.

DIAGRAM INDEX

Component PageElectronic Flasher Relay . . . . . . . . . . . . . . . . . . . . .8W-52-2Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2Fuse 16 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2Marker Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4Park Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4Turn Signal/Hazard Switch . . . . . . . . . . . . . . . . .8W-52-3, 4Turn Signal Indicator Lamps . . . . . . . . . . . . . . . .8W-52-3, 4Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4Vehicle Information Center (VIC) . . . . . . . . . . . . .8W-52-3, 4

ZJ 8W-52 TURN SIGNALS 8W - 52 - 1

WIPERS

INDEX

page page

Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2Intermittent Wipers . . . . . . . . . . . . . . . . . . . ........... 1

Rear Wiper/Washer . . . . . . . . . . . . . . . . . . . ........... 1Washer Fluid Level Sensor . . . . . . . . . . . . . ........... 2

INTERMITTENT WIPERSThe intermittent wiper system is standard equip-

ment on this vehicle. Power for the system is sup-plied on circuit F86 from the 10 amp circuit breakerin cavity 27 of the fuse block. Circuit F86 splices tothe intermittent wiper module and the wiper switch.

Power for the circuit breaker is supplied on circuitA31 from the ignition switch. This circuit is HOT inthe ACCESSORY and RUN positions only. Power forthe A31 circuit is supplied on circuit A1 from thePower Distribution Center (PDC). This circuit isHOT at all times and protected by a 40 amp fuse lo-cated in cavity 12.

Ground for the wiper system is provided on circuitZ1.

When the operator moves the wiper switch to theLOW position, battery voltage passes through theswitch to circuit V3. Circuit V3 feeds the wiper motorlow speed brushes through the intermittent wipermodule. If the operator selects wiper HIGH speed op-eration, the wiper switch passes current to circuitV4. Circuit V4 feeds the wiper motor high speedbrushes through the intermittent wiper module.

The DELAY portion of the wiper switch contains avariable resistor. The variable resistor connects tothe intermittent wiper module through the wiperswitch harness. The amount of delay selected by theoperator determines the voltage drop through the re-sistor and the voltage level received by the intermit-tent wiper module on circuit V50.

After the intermittent wiper control module deter-mines the amount of delay selected, it cycles the wip-ers by periodically energizing circuit V3. Circuit V3powers the wiper motor low speed brushes.

As the windshield wiper motor turns, the parkswitch, internal to the motor, moves from its DOWNposition to the UP position. When the wiper switch isturned OFF, the F86 circuit prevents the wipers fromstopping in any position but park.

The windshield washer uses a pump motor locatedinside the windshield washer fluid reservoir. Whenthe washer switch is pressed, power is suppliedthrough the wiper switch to the pump motor on cir-cuit V11. Circuit Z1 provides ground for the pumpmotor.

HELPFUL INFORMATION• Check the 40 amp fuse in cavity F12 of the PDC• Check the 10 amp circuit breaker in cavity 27 ofthe fuse block

REAR WIPER/WASHERThe optional rear wiper and washer system uses a

switch assembly located in the right switch pod.Power for the switch pod is supplied by circuit V23from the fuse box. This circuit is protected by a 20amp fuse located in cavity 9.

Power for fuse 9 is supplied on circuit A31 from theignition switch. This circuit is HOT in the ACCES-SORY and RUN positions only. Power for the A31 cir-cuit is supplied on circuit A1 from the PowerDistribution Center (PDC) fuse 12.

Power for the rear wiper motor and the controlmodule located internal to the motor assembly is pro-vided by the A18 circuit from the fuse block fuse 1.This fuse is HOT at all times. Power for the fuse issupplied on the A7 circuit from the PDC. This circuitis protected by a 40 amp fuse located in cavity 14.

When the operator selects the ON position, poweris supplied through the switch to circuit V13. TheV13 circuit connects from the switch to the rearwiper control module.

The module processes this signal and suppliespower to the wiper motor. Ground for the wiper mo-tor is supplied on circuit Z1.

When the switch is placed in the DELAY position,power is supplied from the switch to the motor con-trol on circuit V24. The module processes this signaland connects the motor to voltage. The amount ofDELAY is controlled by the position of the rear wiperswitch.

When the WASH switch is activated, power ispassed through the switch to circuit V20. This circuitis double crimped at the switch. One branch of thecircuit connects to the rear wiper control module. Theother branch connects to the rear washer pump mo-tor.

An additional input to the wiper control module issupplied on circuit G78. This circuit is connected to

ZJ 8W-53 WIPERS 8W - 53 - 1

the liftgate ajar switch, and is used to signal to thecontrol when the liftgate is ajar.

When the liftgate is ajar the wiper control modulewill not allow the rear wiper or washer to operate.

HELPFUL INFORMATION• Check the 40 amp fuse located in cavity 12 of thePDC• Check the 20 amp fuse located in cavity 9 of thefuse block• Check the operation of the liftgate ajar switch

WASHER FLUID LEVEL SENSORVehicles equipped with the optional Vehicle Infor-

mation Center (VIC) have a washer fluid level sensorlocated in the washer fluid reservoir. Power for thesensor is supplied from the VIC on circuit G29.

When the fluid in the reservoir reaches a cali-brated level the contacts in the sensor close connect-ing the G29 circuit to ground on circuit Z1.

HELPFUL INFORMATION• Check the continuity of the switch

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 27) . . . . . . . . . . .8W-53-3Fuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-53-5Fuse 9 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-53-5Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-53-3, 5Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-53-3, 5Intermittent Wiper Control Module . . . . . . . . . . . .8W-53-3, 4Intermittent Wiper Motor . . . . . . . . . . . . . . . . . . . .8W-53-4Intermittent Wiper Switch . . . . . . . . . . . . . . . . . . .8W-53-3Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-53-6Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-53-6Rear Washer Pump Motor . . . . . . . . . . . . . . . . . . .8W-53-6Rear Wiper Motor . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5Rear Wiper Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-53-4Washer Fluid Level Sensor . . . . . . . . . . . . . . . . . .8W-53-4Windshield Washer Pump Motor . . . . . . . . . . . . . . .8W-53-4

8W - 53 - 2 8W-53 WIPERS ZJ

TRAILER TOW

TRAILER TOWThe factory installed trailer tow system in this ve-

hicle uses three relays and a circuit breaker alongwith the trailer tow wiring connector located belowthe rear bumper.

Battery voltage for the trailer tow circuit breakerand the stop lamp relay is supplied on circuit A18.This circuit is HOT at all times and protected by a20 amp fuse in cavity 1 of the fuse block. Power forthe fuse is supplied on circuit A7 from the Power Dis-tribution Center (PDC). The A7 circuit is protectedby a 40 amp fuse in cavity 12 of the PDC.

The trailer tow circuit breaker is a 10 amp and lo-cated in the right rear quarter panel.

STOP LAMP RELAYPower for the coil side of the stop lamp relay is

supplied by circuit L50. This circuit connects to thestop lamps. Ground for the coil side is supplied oncircuit Z1.

When the operator depresses the brake pedal, volt-age flows through the coil of the relay to groundcausing the contacts in the relay to close connectingcircuits A18 and 95.

Circuit 95 connects to the left and right turn signalrelays. Voltage flows through the closed contacts inthe relays to the trailer tow connector.

RIGHT TURN RELAYPower for the coil side of the right turn relay is

supplied by circuit L60. This circuit connects to theright side turn signal lamps. Ground for the coil sideof the relay is supplied on circuit Z1.

When the operator turns the right turn signal ON,power flows through the coil in the relay to groundcausing the contacts in the relay to switch from thenormally CLOSED position to connect circuits 94 andL60.

Circuit 94 is the feed for the contact side of the re-lay. Circuit L60 connects from the relay to the trailertow connector.

Circuit 94 is fed power through the normallyCLOSED side of the stop lamp relay and circuit A18.

The A18 circuit is HOT at all times and protected bya 10 amp circuit breaker located in the right rearquarter panel.

LEFT TURN RELAYPower for the coil side of the left turn relay is sup-

plied by circuit L61. This circuit connects to the leftside turn signal lamps. Ground for the coil side of therelay is supplied on circuit Z1.

When the operator turns the left turn signal ON,power flows through the coil in the relay to groundcausing the contacts in the relay to switch from thenormally CLOSED position to connect circuits 94 andL61.

Circuit 94 is the feed for the contact side of the re-lay. Circuit L61 connects from the relay to the trailertow connector.

Circuit 94 is fed power through the normallyCLOSED side of the stop lamp relay and circuit A18.The A18 circuit is HOT at all times and protected bya 10 amp circuit breaker located in the right rearquarter panel.

HELPFUL INFORMATION• Check the 40 amp fuse located in cavity 12 of thePDC• Check the 20 amp fuse located in cavity 1 of thefuse block• Check the In-Line circuit breaker

DIAGRAM INDEX

Component PageCircuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-4Electric Brake Provision . . . . . . . . . . . . . . . . . . . .8W-54-3Fuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-54-2Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-2Lamp Outage Module (LOM) . . . . . . . . . . . . . . . . .8W-54-3Left Turn Signal Relay . . . . . . . . . . . . . . . . . . . . .8W-54-4Right Turn Signal Relay . . . . . . . . . . . . . . . . . . . .8W-54-4Stop Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-4

ZJ 8W-54 TRAILER TOW 8W - 54 - 1

POWER WINDOWS

INDEX

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Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Power Windows . . . . . . . . . . . . . . . . . . . . . . ........... 1

POWER WINDOWSThe power window system is powered by a 30 amp

circuit breaker located in the fuse block cavity 26.The circuit breaker receives its feed from the igni-

tion switch on the A22 circuit. This circuit breaker isHOT when the ignition switch is in the RUN positiononly.

Circuit F81 is the feed circuit from the circuitbreaker to the power window switch. This circuit isthe feed for the entire system. The ground path forthe power windows is on the Z1 circuit.

A LOCK-OUT feature is provided on the driver’sdoor window switch. When this feature is engagedthe other windows in the system will not operate.

LEFT FRONT WINDOW OPERATIONWhen the operator selects window DOWN opera-

tion, power is supplied on the F81 circuit through theswitch to circuit Q21. Circuit Q21 goes from theswitch to the power window motor. Ground for themotor is supplied on the Q11 circuit back to theswitch. A bus bar, internal to the switch, connects theQ11 circuit to the Z1 circuit.

For window UP operation the circuits are reversed.Circuit Q11 is the feed, and circuit Q21 is theground.

RIGHT FRONT WINDOW OPERATIONWhen the DRIVER selects window DOWN opera-

tion, power is supplied on the F81 circuit through theswitch to circuit Q26. Circuit Q26 goes from the driv-ers door switch to the right front door switch. Poweris passed through this switch to circuit Q22. The Q22circuit then goes to the right front window motor.

Ground for the window motor is supplied on theQ12 circuit back to the right door switch. Circuity in-ternal to the switch then passes the ground to circuitQ16. Circuit Q16 goes from the right front doorswitch to the master switch. A bus bar, internal tothe switch, connects the Q16 circuit to the Z1 circuit.

For window UP operation the circuits are reversed.Circuits Q16 and Q12 are the feeds, and circuits Q22and Q26 are the grounds.

If the switch is being operated from the PASSEN-GER’S front door, and the operator is requesting win-dow DOWN operation, power is supplied on the Q1circuit from the driver’s master switch circuitthrough the passengers switch to the Q22 circuit.

Ground for the motor is supplied on the Q12 circuitthrough the switch and back to the master switch oncircuit Q16. A bus bar, internal to the switch, con-nects the Q16 circuit to the Z1 circuit.

For window UP operation, the circuits are reversed.Circuit Q12 is the power and circuit Q22 is theground.

LEFT REAR WINDOWWhen the DRIVER selects window DOWN opera-

tion, power is supplied on the F81 circuit through theswitch to circuit Q27.

Circuit Q27 goes from the drivers door switch tothe left rear door connector. At the connector the Q27circuit switches to circuit Q28. Power is passedthrough this switch to circuit Q22. The Q22 circuitthen goes to the left rear window motor.

Ground for the window motor is supplied on theQ12 circuit back to the left rear door switch. Circuityinternal to the switch then passes the ground to cir-cuit Q18. Circuit Q18 goes from the left rear doorswitch to the left rear door connector. At the connec-tor the circuit changes to Q17. Circuit Q17 goes tothe master switch. A bus bar, internal to the switch,connects the Q17 circuit to the Z1 circuit.

For window UP operation the circuits are reversed.Circuits Q12, Q17, and Q18 are the feeds, and cir-cuits Q22, Q27, and Q28 are the grounds.

If the switch is being operated from the LEFTREAR door, and the operator is requesting windowDOWN operation, power is supplied on the Q1 circuitfrom the driver’s master switch circuit through theswitch to the Q22 circuit.

Ground for the motor is supplied on the Q12 circuitthrough the switch and to circuit Q18. Circuit Q18connects from the left rear door switch to the leftrear door connector. At the connector the Q18 circuitis changes to circuit Q17.

Circuit Q17 connects from the left rear door con-nector to the master window switch. A bus bar, inter-nal to the switch, connects the Q17 circuit to the Z1circuit.

For window UP operation, the circuits are reversed.Circuit Q12 is the power and circuits Q22, Q28, andQ27 are the grounds.

ZJ 8W-60 POWER WINDOWS 8W - 60 - 1

RIGHT REAR WINDOWWhen the DRIVER selects window DOWN opera-

tion, power is supplied on the F81 circuit through theswitch to circuit Q28.

Circuit Q28 goes from the drivers door switch tothe right rear door switch. Power is passed throughthis switch to circuit Q22. The Q22 circuit then goesto the right rear window motor.

Ground for the window motor is supplied on theQ12 circuit back to the right rear door switch. Circu-ity internal to the switch then passes the ground tocircuit Q18. Circuit Q18 goes from the right rear doorswitch to the master switch. A bus bar, internal tothe switch, connects the Q18 circuit to the Z1 circuit.

For window UP operation the circuits are reversed.Circuits Q18 and Q12 are the feeds, and circuits Q22and Q28 are the grounds.

If the switch is being operated from the RIGHTREAR door, and the operator is requesting windowDOWN operation, power is supplied on the Q1 circuitfrom the driver’s master switch circuit through theswitch to the Q22 circuit.

Ground for the motor is supplied on the Q12 circuitthrough the switch and back to the master switch oncircuit Q18. A bus bar, internal to the switch, con-nects the Q18 circuit to the Z1 circuit.

For window UP operation, the circuits are reversed.Circuit Q12 is the power and circuits Q22 and Q28are the ground.

HELPFUL INFORMATION• Check the 30 amp circuit breaker located in cavity26 of the fuse block• Check the 60 amp fuse located in cavity 13 of thePDC• Refer to the appropriate group of the Service Man-ual for additional test procedures

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 26) . . . . . . . . . . .8W-60-3Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-60-3Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-60-3Left Front Power Window Motor . . . . . . . . . . . . . . .8W-60-4Left Rear Power Window Motor . . . . . . . . . . . . . . .8W-60-4Left Rear Power Window Switch . . . . . . . . . . . . . .8W-60-4Power Window Master Switch . . . . . . . . . . . . . . . .8W-60-3Right Front Power Window Motor . . . . . . . . . . . . . .8W-60-4Right Front Power Window Switch . . . . . . . . . . . . .8W-60-4Right Rear Power Window Motor . . . . . . . . . . . . . .8W-60-4Right Rear Power Window Switch . . . . . . . . . . . . . .8W-60-4

8W - 60 - 2 8W-60 POWER WINDOWS ZJ

POWER DOOR LOCKS

POWER DOOR LOCKSTwo relays provide power for the power door lock

motors and the liftgate lock motor. The Unlock relayprovides power for the unlock circuits while the Lockrelay powers the lock circuits. Either the power doorlock switches or the remote keyless entry module op-erate the Unlock and Lock relays.

If the vehicle is equipped with the Vehicle TheftAlarm (VTA) system, the VTA module also operatesthe Unlock and Lock relays.

LOCK RELAYCircuit F60 from fuse 8 in the fuse block supplies bat-

tery voltage to the door lock switches. When either powerdoor lock switch is put in the LOCK position, the switchconnects circuit F60 to circuit P35. If the operator usesRemote Keyless Entry (RKE), the RKE module powerscircuit P35. If the Vehicle Theft Alarm (VTA) activates,the VTA module powers circuit P35. In either case, circuitP35 supplies power to the coil side of the lock relay, caus-ing the relay contacts to close. The chime module controlsground for the coil side of the relay on circuit P57.

When the lock relay contacts close, they connectbattery voltage from circuit F35 to circuit P2. CircuitP2 then supplies battery voltage to the power doorlock motors to LOCK the doors and the liftgate lock.

When the power doors LOCK, ground for the motorsis on circuit P34 through the normally closed contacts inthe door unlock relay to ground on circuit Z1.

UNLOCK RELAYCircuit F60 from fuse 8 in the fuse block supplies

battery voltage to the door lock switches. When ei-ther power door lock switch is put in the UNLOCKposition, the switch connects circuit F60 to circuitP36. If the operator uses Remote Keyless Entry(RKE), the RKE module powers circuit P36. If theVehicle Theft Alarm (VTA) activates, the VTA modulepowers circuit P36. In either case, circuit P36 sup-plies power to the coil side of the unlock relay, caus-ing the relay contacts to close. Circuit Z1 providesground for the coil side of the unlock relay.

When the unlock relay contacts close, they connectbattery voltage from circuit F35 to circuit P34. CircuitP34 then supplies battery voltage to the power door lockmotors to UNLOCK the doors and the liftgate lock.

When the power doors UNLOCK, ground for the mo-tors is on circuit P2 through the normally closed con-tacts in the door lock relay to ground on circuit Z1.

REMOTE KEYLESS ENTRY (RKE) MODULECircuit F60 from fuse 8 in the fuse block supplies

power to the Remote Keyless Entry (RKE) module.Circuit F60 is HOT at all times.

When the ignition switch is in the RUN position,circuit F83 from fuse 19 in the fuse block suppliespower to the RKE module. Circuit Z1 providesground for the RKE module.

Circuit G71 from the left and right front door keyswitches connects to the RKE module. Circuit G71 alsobranches to the Vehicle Theft Alarm (VTA) module.

The RKE module UNLOCKS the doors by energizingthe unlock relay on circuit P36. Refer to Unlock Relay.

The module LOCKS the doors by energizing thelock relay on circuit P35. Refer to Lock Relay.

Circuit G49 from the Keyless entry module con-nects the RKE module to the VTA module.

LIFTGLASS RELEASE SOLENOIDCircuit F60 from fuse 8 in the fuse block supplies

power to the liftgate limit switch. When the switchcloses, it supplies battery voltage to the liftglass pushbutton on circuit P101.

When voltage in present on circuit P101 and theoperator presses the liftglass push button switch, theswitch powers the liftglass solenoid on circuit P100.Circuit Z1 provides ground for the solenoid.

HELPFUL INFORMATION• When the ignition switch is in RUN position, itconnects circuit A2 from fuse 13 in the PDC to circuitA22. Circuit A22 connects to the fuse block and pow-ers circuit F83 through the fuse in cavity 19.• Circuit A7 from fuse 14 in the PDC feeds circuitF35 through fuse 14 in the fuse block.• Circuit A4 from fuse 1 in the PDC powers circuitF60 through fuse 8 in the fuse block.

DIAGRAM INDEX

Component PageChime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-6Door and Liftgate Key Switches . . . . . . . . . . . . . . .8W-61-4Door and Liftgate Lock Motors . . . . . . . . . . . . . . . .8W-61-7Door Lock Switches . . . . . . . . . . . . . . . . . . . . .8W-61-5, 6Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2, 8Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2, 8Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2Liftgate Limit Switch . . . . . . . . . . . . . . . . . . . . . .8W-61-8Liftglass Push Button Switch . . . . . . . . . . . . . . . . .8W-61-8Liftglass Release Solenoid . . . . . . . . . . . . . . . . . . .8W-61-8Lock Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-6Remote Keyless Entry (RKE) Module . . . . . . . .8W-61-2, 3, 4Unlock Relay . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-5Vehicle Theft Alarm (VTA) Module . . . . . . . . . . . .8W-61-3, 4

ZJ 8W-61 POWER DOOR LOCKS 8W - 61 - 1

POWER MIRRORS

POWER MIRRORSA single switch operates both the left and right

power mirrors. Each mirror has two motors; a LEFT/RIGHT motor and a UP/DOWN motor. The motorsswitch polarity to allow mirror adjustment.

Circuit A4 from fuse 1 in the Power DistributionCenter (PDC) supplies battery voltage to fuse 8 inthe fuse block. Fuse 8 powers the power mirrorswitch on circuit F60.

Circuit Z1 connects to the power mirror switch andsupplies ground for the power mirror system.

RIGHT POWER MIRROR OPERATIONIn the right position, the power mirror switch sup-

plies power to the right mirror LEFT/RIGHT motoron circuit P79 when a rightward adjustment is made.Circuit P77 provides the ground path the for right-ward adjustments.

When the operator makes leftward adjustment, po-larity reverses. For leftward adjustments, the switchsupplies battery voltage to the right mirror LEFT/RIGHT motor on circuit P77. Circuit P79 suppliesground for leftward adjustments.

During upward adjustments, the switch suppliesvoltage to the right mirror UP/DOWN motor on cir-cuit P79. Circuit P78 supplies ground during upwardadjustments.

For downward adjustments, the polarity is re-versed, the switch powers the right mirror UP/DOWN motor on circuit P78. Circuit P79 supplies theground path.

LEFT POWER MIRROR OPERATIONIn the left position, the power mirror switch sup-

plies power to the left mirror LEFT/RIGHT motor oncircuit P79 when a rightward adjustment is made.Circuit P75 provides the ground path the for right-ward adjustments.

When the operator makes leftward adjustment, po-larity reverses. For leftward adjustments, the switchsupplies battery voltage to the left mirror LEFT/RIGHT motor on circuit P75. Circuit P79 suppliesground for leftward adjustments.

During upward adjustments, the switch suppliesvoltage to the left mirror UP/DOWN motor on circuitP79. Circuit P64 supplies ground during upward ad-justments.

For downward adjustments, the polarity is re-versed, the switch powers the left mirror UP/DOWNmotor on circuit P64. Circuit P79 supplies the groundpath.

HELPFUL INFORMATION• Check the 20 amp fuse in cavity F1 of the PDC• Check the 15 amp fuse in cavity 8 of the fuse block• Move the switch to its various positions and listenfor the motors to click or try to move. Some move-ment or clicking indicates a poor connection or a me-chanical problem with a mirror.

HEATER ELEMENTSThe heated rear window relay powers the heater

elements in power mirrors. When the relay energizes,it connects circuit F83 from fuse 19 in the fuse blockto circuit C15.

Circuit C15 powers circuit C16 through fuse 23 inthe fuse block. Circuit C16 powers the heater ele-ments in the power mirrors. Circuit Z1 providesground for the power mirror heater elements.

HELPFUL INFORMATION• Circuit A2 from fuse 13 in the Power DistributionCenter (PDC) connects to circuit A22 when the igni-tion switch is in the RUN position. Circuit A22 pow-ers F83 through fuse 19 in the fuse block.

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 28) . . . . . . . . . . .8W-62-4Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-62-2Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-62-2Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-62-4Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-62-2, 4Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-62-4Fuse 23 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-62-5Heated Rear Window Relay . . . . . . . . . . . . . . . . . .8W-62-4Heated Rear Window Switch . . . . . . . . . . . . . . . . .8W-62-5Power Mirror Heater Grids . . . . . . . . . . . . . . . . . .8W-62-5Power Mirror Motors . . . . . . . . . . . . . . . . . . . . . .8W-62-3Power Mirror Switch . . . . . . . . . . . . . . . . . . . . . .8W-62-2

ZJ 8W-62 POWER MIRRORS 8W - 62 - 1

POWER SEAT

INDEX

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Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2Driver’s Seat . . . . . . . . . . . . . . . . . . . . . . . . ........... 1

General Information . . . . . . . . . . . . . . . . . . . ........... 1Passenger’s Seat . . . . . . . . . . . . . . . . . . . . ........... 1

GENERAL INFORMATIONThe power seat system is protected by a 30 amp

circuit breaker located in cavity 25 of the fuse block.This circuit breaker is HOT at all times and feedscircuit F35. Circuit A7 is the power supply for thecircuit breaker.

The A7 circuit originates in the Power DistributionCenter (PDC) and is protected by a 40 amp fuse lo-cated in cavity 14.

Circuit F35 is the feed for the switches and theseat motors from the circuit breaker. A BUS bar in-ternal to the switches feeds all the contacts. Ground-ing for the seats is provided on circuit Z1.

The motors located under the seat are protected bya circuit breaker wired in with the motors. Each mo-tor has its own circuit breaker.

DRIVER’S SEATWhen the operator selects the FRONT VERTICAL

UP function power is passed on the F35 circuitthrough the closed contacts in the switch to the P19circuit. The P19 circuit connects to the motor.Ground is provided on the P21 circuit back to theswitch. A ground BUS bar internal to the switch thenconnects to the Z1 circuit.

For FRONT VERTICAL DOWN function the cir-cuits are reversed. P21 is the feed and P19 is theground.

When the operator selects the SEAT FORWARDfunction power is passed on the F35 circuit throughthe closed contacts in the switch to the P15 circuit.The P15 circuit connects to the motor. Ground is pro-vided on the P17 circuit back to the switch. A groundBUS bar internal to the switch then connects to theZ1 circuit.

For SEAT REARWARD function the circuits are re-versed. P17 is the feed and P15 is the ground.

When the operator selects the REAR VERTICALUP function power is passed on the F35 circuitthrough the closed contacts in the switch to the P11circuit. The P11 circuit connects to the motor. Groundis provided on the P13 circuit back to the switch. Aground BUS bar internal to the switch then connectsto the Z1 circuit.

For REAR VERTICAL DOWN function the circuitsare reversed. P13 is the feed and P11 is the ground.

When the operator selects the SEAT UP functionpower is passed on the F35 circuit through the closedcontacts in the switch to the P11 and P19 circuits.The P11 circuit connects to the rear UP/DOWN mo-tor, and P19 connects to the front UP/DOWN motor.Ground is provided on the P13 and P21 circuits backto the switch. A ground BUS bar internal to theswitch then connects to the Z1 circuit.

For SEAT DOWN function the circuits are re-versed. P13 and P21 circuits are the feeds and P11and P19 are the grounds.

PASSENGER’S SEATWhen the operator selects the FRONT VERTICAL

UP function power is passed on the F35 circuitthrough the closed contacts in the switch to the P18circuit. The P18 circuit connects to the motor.Ground is provided on the P20 circuit back to theswitch. A ground BUS bar internal to the switch thenconnects to the Z1 circuit.

For FRONT VERTICAL DOWN function the cir-cuits are reversed. P20 is the feed and P18 is theground.

When the operator selects the SEAT FORWARDfunction power is passed on the F35 circuit throughthe closed contacts in the switch to the P14 circuit.The P14 circuit connects to the motor. Ground is pro-vided on the P16 circuit back to the switch. A groundBUS bar internal to the switch then connects to theZ1 circuit.

For SEAT REARWARD function the circuits are re-versed. P16 is the feed and P14 is the ground.

When the operator selects the REAR VERTICALUP function power is passed on the F35 circuitthrough the closed contacts in the switch to the P10circuit. The P10 circuit connects to the motor.Ground is provided on the P12 circuit back to theswitch. A ground BUS bar internal to the switch thenconnects to the Z1 circuit.

For REAR VERTICAL DOWN function the circuitsare reversed. P12 is the feed and P10 is the ground.

When the operator selects the SEAT UP functionpower is passed on the F35 circuit through the closedcontacts in the switch to the P10 and P18 circuits.The P10 circuit connects to the rear UP/DOWN mo-tor, and P18 connects to the front UP/DOWN motor.Ground is provided on the P12 and P20 circuits back

ZJ 8W-63 POWER SEAT 8W - 63 - 1

to the switch. A ground BUS bar internal to theswitch then connects to the Z1 circuit.

For SEAT DOWN function the circuits are re-versed. P12 and P20 circuits are the feeds and P10and P18 are the grounds.

HELPFUL INFORMATION• Check the 25 amp circuit breaker in located incavity 25 of the fuse block• Check the 40 amp fuse located in cavity 14 of thePDC

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 25) . . . . . . . . .8W-63-3, 4Drivers Power Seat Motors . . . . . . . . . . . . . . . . . .8W-63-3Drivers Power Seat Switch . . . . . . . . . . . . . . . . . .8W-63-3Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-63-3, 4Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-63-3, 4Passengers Power Seat Motors . . . . . . . . . . . . . . .8W-63-3Passengers Power Seat Switch . . . . . . . . . . . . . . . .8W-63-3

8W - 63 - 2 8W-63 POWER SEAT ZJ

POWER SUNROOF

POWER SUNROOFThe optional power sunroof is supplied power on

circuit F81. This circuit is HOT in the RUN positiononly and protected by a 30 amp circuit breaker lo-cated in cavity 26 of the fuse block. Power for the cir-cuit breaker is supplied on circuit A22 from theignition switch. Power for the A22 circuit is suppliedby circuit A2. This circuit is protected by a 60 ampfuse located in cavity 13 of the Power DistributionCenter (PDC).

Circuit F81 is spliced in the sunroof wiring harnessand supplies voltage to the sunroof switch, and thesunroof control module.

Ground for the sunroof system is provided on cir-cuit Z1.

When the operator selects the OPEN function, volt-age is provided on the F81 circuit through the closedcontacts in the switch to circuit Q41. Circuit Q41connects between the switch and the control module.

The control module then activates the motor andmoves the sunroof to the desired position. A positionsensor is used to prevent the sunroof from beingmoved to far in any one direction. When the sensordetects the roof is at the end of its travel it sends asignal to the control module and voltage is shut off tothe motor.

When the operator selects the CLOSE function,voltage is provided on the F81 circuit through the

closed contacts in the switch to circuit Q42. CircuitQ42 connects between the switch and the controlmodule.

The control module then activates the motor andmoves the sunroof to the desired position. A positionsensor is used to prevent the sunroof from beingmoved to far in any one direction. When the sensordetects the roof is at the end of its travel it sends asignal to the control module and voltage is shut off tothe motor.

HELPFUL INFORMATION• Check the 60 amp fuse located in cavity 13 of thePDC• Check the 30 amp circuit breaker located in cavity26 of the fuse block

DIAGRAM INDEX

Component PageCircuit Breaker (Fuse Block Cavity 26) . . . . . . . . . . .8W-64-2Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2Position Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-3Sliding Roof Motor . . . . . . . . . . . . . . . . . . . . . . .8W-64-3Sunroof Control Module . . . . . . . . . . . . . . . . . .8W-64-2, 3Sunroof Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2

ZJ 8W-64 POWER SUNROOF 8W - 64 - 1

SPLICE INFORMATION

GENERAL INFORMATIONThis section identifies all splices in the wiring dia-

grams. It also shows the splices in their entirety. Allcircuits that are part of the splices are shown, and

the systems they affect are referenced. For viewingthe location of each splice in the vehicle, refer to Sec-tion 8W-95.

SPLICE INDEX

Component PageS100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-2S101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-2S102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-3S103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-3S104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4S105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4S106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4S107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5S108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5S109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5S110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6S111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6S112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6S113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7S114 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7S115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7S116 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8S117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8S118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8S119 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9S120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9S121 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9S122 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10S123 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10S124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10S125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10S200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11S201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11S202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11S203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-12S204 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-13S205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-13S206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14S207 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14S208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14S209 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15S210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15S211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15S212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-16S213 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-16S214 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-17S215 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-17S216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-18S217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-18S218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19S219 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19

Component PageS220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19S221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S304 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S306 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S307 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-24S308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-24S309 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S310 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S312 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S313 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S314 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S315 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S319 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S321 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S322 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S323 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S409 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S412 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33

ZJ 8W-70 SPLICE INFORMATION 8W - 70 - 1

1995 Grand CherokeePublication No, 81-370-5147TSB 26-08-95 October, 1995




CONNECTOR PIN OUTS

GENERAL INFORMATIONThe pages referenced in this section show the con-

nector, the circuits in the connector, and the pin that

circuit occupies. Individual connector numbers arereferenced on diagram pages throughout Group 8W.

CONNECTOR LOCATIONS

Component PageC100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3C101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3C102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3C103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3C104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-4C105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5C106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5C107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5C108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5C109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5C110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6C111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6C112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6C113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6C114 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6C115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7C116 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7C117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7C118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7C119 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8C120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8C121 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8C122 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8C123 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8C124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9C125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9C126 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9C127 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9C128 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9C129 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10C130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10C131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10C132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10C133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11C134 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11C135 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11C136 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11C137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12C138 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12C139 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12C140 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12C141 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-13, 14C142 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-15C143 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-15C144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16C145 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16C146 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16C147 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16C148 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17C149 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17C150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17C151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17C152 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17C153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18C154 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18C155 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18C156 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18C157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18C158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19

Component PageC159 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C161 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C162 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C163 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C164 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C165 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-21C166 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-21C167 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-22C168 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-22C169 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C171 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C172 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C176 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C177 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C178 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C181 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-26C201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-26C202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-27C203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-27C204 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-28C205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-28C206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-29C207 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-30, 31, 32C208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-32C209 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-32C210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C213 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C214 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C215 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C219 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-36C221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-36C222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-37C223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-38C224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-38C225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-39C226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-39C227 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C228 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C229 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C231 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-41C232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-41C233 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-42C234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43

ZJ 8W-80 CONNECTOR PIN OUTS 8W - 80 - 1

Component PageC235 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43C236 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43C237 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43C238 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43C239 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-44C240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-44C241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45C242 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45C243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45C244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45C245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-46C246 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-46C247 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47C248 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47C249 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47C250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47, 48C251 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-48C252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-48C253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49C254 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49C255 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49C256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49C300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-50C301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-50C302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51C303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51C304 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51C305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51C306 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51C307 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52C308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52C309 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52C310 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52C311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53C312 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53C313 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53C314 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53C315 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53C316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-54, 55C317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-55C318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-55C319 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56C320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56C321 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56C322 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56C323 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57C324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57C325 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57C326 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57C327 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57C328 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58C329 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58C330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58C331 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58C332 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-59C333 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-59C334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-60C335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-60C336 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61C337 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61C338 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61C339 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61C340 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62C341 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62C342 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62C343 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62C344 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C346 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C348 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63

Component PageC349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-64C350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-64C351 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-65C352 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-65C353 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C354 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C355 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C357 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C358 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C359 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C360 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C361 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C363 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C364 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C365 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C366 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C367 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C368 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C369 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C370 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C371 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C372 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C373 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C378 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C379 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C380 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C381 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C409 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C412 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C414 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C415 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C416 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C418 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C419 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C421 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C423 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C424 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C425 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C426 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C428 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C430 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C431 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C432 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C433 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-80

8W - 80 - 2 8W-80 CONNECTOR PIN OUTS ZJ








CONNECTOR LOCATIONS

GENERAL INFORMATIONThis section provides illustrations identifying com-

ponent and connector locations in the vehicle. A con-

nector index is provided. Use the wiring diagrams ineach section for connector number identification. Re-fer to the index for the proper figure number.

CONNECTOR LOCATIONS

Connector # Color Location Fig.C100 . . . . . . BK . . . Below Left Headlamp Opening . . . . .2C101 . . . . . . BK . . . Below Left Headlamp Opening . . . . .2C102 . . . . . . BK . . . Left Fender Side ShieldC103 . . . . . . BK . . . Behind Headlamp . . . . . . . . . . . . .1C104 . . . . . . BK . . . Left Fender Side Shield . . . . . . . . .2C105 . . . . . . BK . . . Left Fender Side ShieldC106 . . . . . . BK . . . On Brake BoosterC107 . . . . . . BK . . . Below Brake Master Cylinder . . . . . .2C108 . . . . . . BK . . . Below Brake Master Cylinder . . . . . .2C109 . . . . . . BK . . . Rear of Washer Fluid Reservoir . . . .2C110 . . . . . . BK . . . Bottom of Washer Fluid Reservoir . .2C111 . . . . . . BK . . . Bottom of Washer Fluid Reservoir . .2C112 . . . . . . BK . . . Center of Dash Panel . . . . . . . . . . .2C113 . . . . . . BK . . . Top of Washer Fluid Reservoir . . . . .2C114 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9C115 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9C116 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9C117 . . . . . . BK . . . Left Side of I.P.C118 . . . . . . BK . . . Left Side of I.P.C119 . . . . . . BK . . . Below Power Steering Pump (4.0L) .4C119 . . . . . . BK . . . In Exhaust Down Pipe (5.2L)C120 . . . . . . BK . . . On Thermostat Housing . . . . . . . . .4C121 . . . . . . BK . . . Injector #1 (4.0L) . . . . . . . . . . . . .4C121 . . . . . . BK . . . Injector #1 (5.2L) . . . . . . . . . . . . .5C122 . . . . . . BK . . . Injector #2 (4.0L) . . . . . . . . . . . . .4C122 . . . . . . BK . . . Injector #2 (5.2L) . . . . . . . . . . . . .5C123 . . . . . . BK . . . Injector #3 (4.0L) . . . . . . . . . . . . .4C123 . . . . . . BK . . . Injector #3 (5.2L) . . . . . . . . . . . . .5C124 . . . . . . BK . . . Injector #4 (4.0L) . . . . . . . . . . . . .4C124 . . . . . . BK . . . Injector #4 (5.2L) . . . . . . . . . . . . .5C125 . . . . . . BK . . . On Throttle Body (4.0L) . . . . . . . . .4C125 . . . . . . BK . . . On Throttle Body (5.2L) . . . . . . . . .5C126 . . . . . . BK . . . On Throttle Body (4.0L) . . . . . . . . .4C126 . . . . . . BK . . . On Throttle Body (5.2L) . . . . . . . . .5C127 . . . . . . BK . . . Rear of Intake Manifold (4.0L) . . . . .4C127 . . . . . . BK . . . Front Right of Intake Manifold (5.2L) .5C128 . . . . . . BK . . . Center of Dash Panel (4.0L Engine) .3C129 . . . . . . BK . . . Injector #5 (4.0L) . . . . . . . . . . . . .4C129 . . . . . . BK . . . Injector #5 (5.2L) . . . . . . . . . . . . .5C130 . . . . . . BK . . . Injector #6 (4.0L) . . . . . . . . . . . . .4C130 . . . . . . BK . . . Injector #6 (5.2L) . . . . . . . . . . . . .5C131 . . . . . . BK . . . Bottom Left of I.P.C132 . . . . . . BK . . . Bottom Left of I.PC133 . . . . . . BK . . . Left Side of I.P.C134 . . . . . . BK . . . Rear of Transmission (2WD) Rear

of Transfer Case (4WD) . . . . . . .6C135 . . . . . . BK . . . Right Side of Transmission . . . . . . .6C136 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6

Connector # Color Location Fig.C137 . . . . . . BK . . . Rear of Intake Manifold (4.0L) . . . . .4C137 . . . . . . BK . . . Below Distributor (5.2L) . . . . . . . . .4C138 . . . . . . BK . . . Near Distributor (4.0L) . . . . . . . . . .4C138 . . . . . . BK . . . Near Distributor (5.2L) . . . . . . . . . .5C139 . . . . . . BK . . . At Distributor (4.0L) . . . . . . . . . . .4C139 . . . . . . BK . . . At Distributor (5.2L) . . . . . . . . . . .5C140 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C141 . . . . . . BK . . . Right Rear of Dash Panel . . . . . . . .3C142 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C143 . . . . . . BK . . . On A/C Compressor . . . . . . . . . . .4C144 . . . . . . BK . . . Right Fender Side Shield, Below PDCC145 . . . . . . BK . . . Right Side of Engine Block (4.0L) . .4C145 . . . . . . BK . . . Right Front of Engine (5.2L) . . . . . .5C146 . . . . . . BK . . . Rear of Generator (4.0L) . . . . . . . .4C146 . . . . . . BK . . . Rear of Generator (5.2L) . . . . . . . .5C147 . . . . . . BK . . . At Starter Motor . . . . . . . . . . . . . .4C148 . . . . . . BK . . . Bottom Left of Radiator Closure

Panel . . . . . . . . . . . . . . . . . . .3C149 . . . . . . BK . . . Behind Headlamp . . . . . . . . . . . . .1C150 . . . . . . BK . . . Behind LensC151 . . . . . . BK . . . Bottom Right of Radiator Closure

Panel . . . . . . . . . . . . . . . . . . 3C152 . . . . . . BK . . . Bottom Right of Radiator Closure

Panel . . . . . . . . . . . . . . . . . . .3C153 . . . . . . BK . . . Bottom Right of Radiator Closure

Panel . . . . . . . . . . . . . . . . . . .3C154 . . . . . . BK . . . Below Power Distribution Center

(PDC) . . . . . . . . . . . . . . . . . . .3C155 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C156 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C157 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C158 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C159 . . . . . . BK . . . Right Side of Dash Panel . . . . . . .20C160 . . . . . . BK . . . Lower Right of I.P., Near HVAC . . .10C161 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C162 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C163 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C164 . . . . . . BK . . . Lower Right of I.P.C165 . . . . . . BK . . . Lower Right of I.P.C166 . . . . . . BK . . . Lower Right of I.P.C167 . . . . . . BK . . . Left Side of I.P., Above Brake Pedal .9C168 . . . . . . BK . . . Left Side of I.P.C169 . . . . . . BK . . . Left Side of TransmissionC170 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6C171 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6C172 . . . . . . BK . . . Rear of Generator . . . . . . . . . . . . .5C173 . . . . . . BK . . . Top of Intake Manifold . . . . . . . . . .5C174 . . . . . . BK . . . Left Fender Side Shield . . . . . . . . .2

ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 1

Connector # Color Location Fig.C175 . . . . . . BK . . . Injector #7 . . . . . . . . . . . . . . . . .5C176 . . . . . . BK . . . Injector #8 . . . . . . . . . . . . . . . . .5C177 . . . . . . BK . . . Center Rear of Engine CompartmentC178 . . . . . . BK . . . Right Rear of Engine . . . . . . . . . . .5C179 . . . . . . BK . . . Center of Grille Opening . . . . . . . . .1C180 . . . . . . BK . . . Right Side of Grille Opening . . . . . .1C181 . . . . . . BK . . . On Throttle Body . . . . . . . . . . . . .5C182 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6C200 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18C201 . . . . . . GR . . . Lower Right of I.P. . . . . . . . . . . .18C202 . . . . . . RD . . . Lower Right of I.P. . . . . . . . . . . .18C203 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18C204 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18C205 . . . . . . BK . . . Right Bottom of I.P. . . . . . . . . . . .7C206 . . . . . . BK . . . Lower Right of I.P., Near HVAC . . .10C207 . . . . . . BK . . . In Glove Box . . . . . . . . . . . . . . . .7C208 . . . . . . BK . . . In Glove Box . . . . . . . . . . . . . . . .8C209 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8C210 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C211 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C212 . . . . . . RD . . . Center of I.P. . . . . . . . . . . . . . . . .7C213 . . . . . . BK . . . At HVAC HousingC214 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8C215 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8C216 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8C217 . . . . . . BK . . . Rear of SwitchC218 . . . . . . BK . . . Rear of SwitchC219 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C220 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C221 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C222 . . . . . . BK . . . Rear of Cluster . . . . . . . . . . . . . . .7C223 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7C224 . . . . . . BK . . . Bottom Left of I.P. . . . . . . . . . . . .7C225 . . . . . . NAT . . Left Front of Steering Column . . . .12C226 . . . . . . GY . . . Right Front of Steering Column . . .12C227 . . . . . . BK . . . Bottom Left of I.P. . . . . . . . . . . . .7C228 . . . . . . RD . . . Right Front of I.P. . . . . . . . . . . . .12C229 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .8C230 . . . . . . NAT . . Front Bottom of Steering Column . .12C231 . . . . . . RD . . . Left Bottom of I.P. . . . . . . . . . . . .7C232 . . . . . . BK . . . Top of Brake Pedal . . . . . . . . . . . .9C233 . . . . . . GY . . . Left Side of I.P.C234 . . . . . . BK . . . Left Side of I.P.C235 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .8C236 . . . . . . BK . . . Bottom Right of I.P. . . . . . . . . . . .10C237 . . . . . . BK . . . Right Inner FenderC238 . . . . . . BK . . . Right Side of I.P . . . . . . . . . . . . .7C239 . . . . . . BK . . . Below Glove Box . . . . . . . . . . . . .8C240 . . . . . . RD . . . Below Glove box . . . . . . . . . . . . . .8C241 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7C242 . . . . . . BK . . . Top Center of I.P. . . . . . . . . . . . . .7C243 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7C244 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7C245 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8C246 . . . . . . BK . . . Left Side of HVAC HousingC247 . . . . . . RD . . . Center of I.P. . . . . . . . . . . . . . . . .7C248 . . . . . . TN . . . Center Bottom of I.P.

Connector # Color Location Fig.C249 . . . . . . NAT . . Left Bottom of I.P. . . . . . . . . . . . .7C250 . . . . . . BK . . . On HVAC HousingC251 . . . . . . BK . . . On HVAC HousingC252 . . . . . . BK . . . On HVAC HousingC253 . . . . . . BK . . . On HVAC HousingC254 . . . . . . BK . . . On HVAC HousingC255 . . . . . . BK . . . On HVAC HousingC256 . . . . . . BK . . . On HVAC HousingC300 . . . . . . BK . . . Near Left Kick Panel . . . . . . . . . .18C301 . . . . . . BK . . . Near Left Kick Panel . . . . . . . . . .18C302 . . . . . . NAT . . In Door Opening . . . . . . . . . . . . .18C303 . . . . . . YL . . . Left Side of I.P. . . . . . . . . . . . . .12C304 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C305 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C306 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C307 . . . . . . BK . . . Under Left Front Seat . . . . . . . . . .22C308 . . . . . . BK . . . In Left B Pillar . . . . . . . . . . . . . .17C309 . . . . . . GY . . . In Left B Pillar . . . . . . . . . . . . . .17C310 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C311 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C312 . . . . . . NAT . . In Left B Pillar . . . . . . . . . . . . . .17C313 . . . . . . RD . . . Under Left Rear Seat . . . . . . . . . .15C314 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C315 . . . . . . BK . . . Along Left Frame Rail, Near Rear

Wheel Well . . . . . . . . . . . . . .15C316 . . . . . . BK . . . Left Rear of Vehicle, Near

Liftgate Opening . . . . . . . . . . . .15C317 . . . . . . GY . . . In Right B Pillar . . . . . . . . . . . . .17C318 . . . . . . NAT . . In Right B Pillar . . . . . . . . . . . . .17C319 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C320 . . . . . . BK . . . Left Rear of Vehicle, Near

Liftgate Opening . . . . . . . . . . . .15C321 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C322 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C323 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C324 . . . . . . BK . . . Top of Liftgate, Right of CHMSL . .21C325 . . . . . . BK . . . Top of Liftgate, Right of CHMSL . .21C326 . . . . . . GY . . . Top of Liftgate, Right of CHMSL . .21C327 . . . . . . BK . . . Behind Lamp . . . . . . . . . . . . . . .16C328 . . . . . . BK . . . Left Rear of Vehicle, Near

Liftgate Opening . . . . . . . . . . . .15C329 . . . . . . BK . . . Under Right Front Seat . . . . . . . . .22C330 . . . . . . GY . . . In Left B Pillar . . . . . . . . . . . . . . . .C331 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C332 . . . . . . NAT . . Under Left Rear Seat . . . . . . . . . .15C333 . . . . . . NAT . . Under Left Rear Seat . . . . . . . . . .15C334 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C335 . . . . . . NAT . . In Door Opening . . . . . . . . . . . . .18C336 . . . . . . GY . . . At Right Visor Vanity Mirror . . . . .13C337 . . . . . . BK . . . Rear of Day/Night Mirror . . . . . . .13C338 . . . . . . GY . . . At Left Visor Vanity Mirror . . . . . .13C339 . . . . . . BK . . . Behind Overhead Console . . . . . . .13C340 . . . . . . BK . . . Behind Overhead Console . . . . . . .13C341 . . . . . . GY . . . Behind Lamp . . . . . . . . . . . . . . .14C342 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C343 . . . . . . RD . . . In Right Front Door . . . . . . . . . . .18C344 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C345 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18

8W - 90 - 2 8W-90 CONNECTOR LOCATIONS ZJ

Connector # Color Location Fig.C346 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C347 . . . . . . BK . . . In Right Front DoorC348 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C349 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C350 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C351 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C352 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C353 . . . . . . RD . . . In Left Front Door . . . . . . . . . . . .18C354 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C355 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C356 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C357 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C358 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C359 . . . . . . BK . . . Top Center of Liftgate . . . . . . . . .21C360 . . . . . . BK . . . Center of Liftgate . . . . . . . . . . . .21C361 . . . . . . BK . . . In LiftgateC362 . . . . . . BK . . . Bottom Center of Liftgate . . . . . . .21C363 . . . . . . BK . . . Bottom Left of Liftgate . . . . . . . . .21C364 . . . . . . GY . . . Center of Liftgate . . . . . . . . . . . .21C365 . . . . . . BK . . . Center of Liftgate . . . . . . . . . . . .21C366 . . . . . . BK . . . Bottom Center of Liftgate . . . . . . .21C367 . . . . . . BK . . . Bottom Center of LiftgateC368 . . . . . . BK . . . Bottom Left of Liftgate . . . . . . . . .21C369 . . . . . . BK . . . On Trailer Hitch . . . . . . . . . . . . .19C370 . . . . . . NAT . . Behind Overhead Console . . . . . . .14C371 . . . . . . BK . . . Rear of Sunroof . . . . . . . . . . . . .14C372 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C373 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19C374 . . . . . . BK . . . In Right Rear Door . . . . . . . . . . .17C375 . . . . . . BK . . . In Right Rear Door . . . . . . . . . . .17C376 . . . . . . BK . . . In Right Rear DoorC377 . . . . . . BK . . . In Right Rear DoorC378 . . . . . . BK . . . In Left Rear Door . . . . . . . . . . . .17C379 . . . . . . BK . . . In Left Rear Door . . . . . . . . . . . .17C380 . . . . . . BK . . . In Left Rear DoorC381 . . . . . . BK . . . In Left Rear DoorC400 . . . . . . BK . . . At LampC401 . . . . . . BK . . . At LampC402 . . . . . . BK . . . At LampC403 . . . . . . BK . . . At LampC404 . . . . . . BK . . . Left Rear Frame RailC405 . . . . . . BK . . . At LampC406 . . . . . . BK . . . At LampC407 . . . . . . BK . . . At Lamp

Connector # Color Location Fig.C408 . . . . . . BK . . . At LampC409 . . . . . . BK . . . In Liftgate . . . . . . . . . . . . . . . . .20C410 . . . . . . BK . . . In Liftgate . . . . . . . . . . . . . . . . .20C411 . . . . . . BK . . . Under Right Front Seat . . . . . . . . .22C412 . . . . . . BK . . . At SwitchC413 . . . . . . BK . . . Under right Front Seat . . . . . . . . .22C414 . . . . . . BK . . . At SwitchC415 . . . . . . BK . . . Rear of Fog Lamp . . . . . . . . . . . .1C416 . . . . . . BK . . . Rear of Fog Lamp . . . . . . . . . . . .1C417 . . . . . . BK . . . At Underhood Lamp . . . . . . . . . . .20C418 . . . . . . GY . . . In Right Front Door . . . . . . . . . . .18C419 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C420 . . . . . . GY . . . In Left Front Door . . . . . . . . . . . .18C421 . . . . . . GN . . . In Left Front Door . . . . . . . . . . . .18C422 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C423 . . . . . . BK . . . Right Rear Frame RailC424 . . . . . . BK . . . At LampC425 . . . . . . BK . . . At LampC426 . . . . . . BK . . . At LampC427 . . . . . . BK . . . At LampC428 . . . . . . BK . . . At LampC428 . . . . . . BK . . . At LampC429 . . . . . . BK . . . At LampC430 . . . . . . BK . . . At LampC431 . . . . . . BK . . . At LampC432 . . . . . . BK . . . At LampC433 . . . . . . BK . . . At LampG100 . . . . . . . . . . . . Left Fender Side Shield . . . . . . . . .2G101 . . . . . . . . . . . . Left Fender Side Shield . . . . . . . . .2G102 . . . . . . . . . . . . Below Coil (4.0L) . . . . . . . . . . . . .4G102 . . . . . . . . . . . . On Bracket Near Coil (5.2L) . . . . . .5G103 . . . . . . . . . . . . Right Fender Side Shield, Near

Battery . . . . . . . . . . . . . . . . . .3G104 . . . . . . . . . . . . Below Coil (4.0L) . . . . . . . . . . . . .4G104 . . . . . . . . . . . . On Bracket Near Coil (5.2L) . . . . . .5G105 . . . . . . . . . . . . Right Fender Side Shield, Near

Battery . . . . . . . . . . . . . . . . . .3G106 . . . . . . . . . . . . Right Fender Side Shield, Near

Battery . . . . . . . . . . . . . . . . . .3G300 . . . . . . . . . . . . On Floor Pan, Behind left Rear Seat .15G301 . . . . . . . . . . . . Right Rear Quarter Panel . . . . . . .16


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Fig. 11 Floor Console


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Fig. 16 Right Body Wiring Connectors

Fig. 17 Rear Door Wiring Connectors


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Fig. 19 Trailer Tow Harness Wiring Connections

Fig. 20 Underhood Lamp


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Fig. 22 Power Seat Wiring Connectors


SPLICE LOCATIONSSPLICE LOCATIONS

SpliceNumber Locations Fig.S100 . . . . . . In T/O for ABS Control Module . . . . . . . . . .1S101 . . . . . . Before T/O for Washer Pump Motor . . . . . . .1S102 . . . . . . Before Grommet to I.P. (4.0L) . . . . . . . . . . .2S102 . . . . . . Between T/O for Injectors No. 6 and

No. 4 (5.2L) . . . . . . . . . . . . . . . . . . . . .3S103 . . . . . . Rear of Engine (4.0L) . . . . . . . . . . . . . . . .2S103 . . . . . . Before T/O for Injector No. 3 . . . . . . . . . . .3S104 . . . . . . Rear of Engine (4.0L) . . . . . . . . . . . . . . . .2S104 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .3S105 . . . . . . After T/O for PCM (4.0L) . . . . . . . . . . . . . .2S105 . . . . . . After T/O for PCM (5.2L) . . . . . . . . . . . . . .3S106 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .1S107 . . . . . . Between T/O for A/C High Pressure Switch

and Engine Harness . . . . . . . . . . . . . . . .1S108 . . . . . . Before T/O’s for Grounds G105 and G106 . . .1S109 . . . . . . Before T/O’s for Grounds G105 and G106 . . .1S110 . . . . . . Before T/O’s for PDC . . . . . . . . . . . . . . . . .1S111 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1S112 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1S113 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1S114 . . . . . . After T/O for PDC . . . . . . . . . . . . . . . . . . .1S115 . . . . . . Before T/O for Underhood Lamp . . . . . . . . .1S116 . . . . . . Before T/O for Underhood Lamp . . . . . . . . .1S117 . . . . . . After T/O for Underhood Lamp . . . . . . . . . .1S118 . . . . . . Before Crankshaft Position Sensor T/O (4.OL) .2S118 . . . . . . Before T/O for Oxygen Sensor (5.2L) . . . . . .3S119 . . . . . . In T/O for PCM Connector . . . . . . . . . . . . .1S120 . . . . . . In T/O for PCM Connector . . . . . . . . . . . . .1S121 . . . . . . Before T/O to TPS and MAP (4.0L) . . . . . . .2S121 . . . . . . Before T/O’s for Injectors No. 7 and No. 5 . .3S122 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .2S122 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .3S123 . . . . . . Near T/O for Crankshaft Position Sensor . . . .3S124 . . . . . . Before Branch to Crankshaft Position Sensor

T/O (4.OL) . . . . . . . . . . . . . . . . . . . . . .2S124 . . . . . . Before T/O for Heated Oxygen Sensor (5.2L) .3S125 . . . . . . Between T/O’s for Injectors No. 5 and No. 6 .2S126 . . . . . . After Grommet, Near T/O for ABS Data

Link Connector . . . . . . . . . . . . . . . . . . .5S200 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6S201 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6S202 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6S203 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6S204 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6S205 . . . . . . Right Side of I.P., Before Glove Box Lamp T/O .6S206 . . . . . . Right Side of I.P., Before Glove Box Lamp T/O .6S207 . . . . . . After T/O for Glove Box Lamp . . . . . . . . . . .6S208 . . . . . . In Branch to Vehicle Information Center (VIC) .6S209 . . . . . . Before Vehicle Information Center (VIC) T/O’s .6S210 . . . . . . In Branch to Vehicle Information Center (VIC) .6S211 . . . . . . Center of I.P., After Cigar Lighter Lamp T/O . .6S212 . . . . . . Center of I.P. . . . . . . . . . . . . . . . . . . . . . .6

SpliceNumber Locations Fig.S213 . . . . . . Before Rear Wiper Switch T/O . . . . . . . . . . .6S214 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6S215 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6S216 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6S217 . . . . . . Before T/O for Left I.P. Speaker . . . . . . . . . .6S218 . . . . . . After T/O for Left Courtesy Lamp . . . . . . . . .6S219 . . . . . . Right Side of I.P., Before Glove Box Lamp

T/O . . . . . . . . . . . . . . . . . . . . . . . . . . .6S220 . . . . . . In T/O for Power Mirror Switch . . . . . . . . . .6S221 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S222 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S223 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S224 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S225 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S226 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S300 . . . . . . After Left Front Door T/O’s . . . . . . . . . . . . .9S301 . . . . . . Before Floor Console Illumination Lamp T/O . .9S302 . . . . . . After Floor Console Illumintiaon Lamp T/O . . .9S303 . . . . . . After Floor Console Illumination Lamp T/O . . .9S304 . . . . . . After T/O’s for Left Front Door . . . . . . . . . .9S305 . . . . . . After T/O’s for Left Front Door . . . . . . . . . .9S306 . . . . . . In T/O for Right Body Connector . . . . . . . . .9S307 . . . . . . After T/O for Right Tail Lamp Harness . . . . .10S308 . . . . . . Between Right Tail Lamp Harness T/O

and Liftgate T/O . . . . . . . . . . . . . . . . . .10S309 . . . . . . Before Power Seat T/O . . . . . . . . . . . . . . .10S310 . . . . . . In T/O for Left Vanity Visor Mirror . . . . . . . .8S311 . . . . . . In T/O for Left Vanity Visor Mirror . . . . . . . .8S312 . . . . . . After Day/Night Mirror T/O . . . . . . . . . . . . .8S313 . . . . . . In T/O for Left Lighted Visor Mirror . . . . . . .8S314 . . . . . . Before T/O for Right Front Door Jamb

Switch . . . . . . . . . . . . . . . . . . . . . . . . .8S315 . . . . . . Before Power Mirror T/O . . . . . . . . . . . . .11S316 . . . . . . After Heated Rear Window T/O . . . . . . . . .13S317 . . . . . . Between Liftgate Ajar Switch T/O and Rear

Wiper Motor T/O . . . . . . . . . . . . . . . . .13S318 . . . . . . Between Liftgate Ajar Switch T/O and Rear

Wiper Motor T/O . . . . . . . . . . . . . . . . .13S319 . . . . . . Before Stop Lamp Relay T/O and Left Turn

Signal Relay T/O . . . . . . . . . . . . . . . . .12S320 . . . . . . Between Stop Lamp Relay T/O and Body

Harness Connector T/O . . . . . . . . . . . . .12S321 . . . . . . After T/O for Day/Night Mirror . . . . . . . . . . .8S322 . . . . . . Before Right Liftgate Connector . . . . . . . . .13S323 . . . . . . Before T/O for Power Mirror . . . . . . . . . . .11S400 . . . . . . Between Liftgate Connector and License

Plate Lamp T/o’s . . . . . . . . . . . . . . . . .13S401 . . . . . . Between Body Connector and Grommet . . . .14S402 . . . . . . Between Body Connector and Grommet . . . .14S403 . . . . . . Between Body Connector and Grommet . . . .14S404 . . . . . . Between Body Connector and Grommet . . . .14S405 . . . . . . Between Liftgate Harness Connector and

License Plate Lamp T/O’s . . . . . . . . . . .13

ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 1

SpliceNumber Locations Fig.S406 . . . . . . Center of Grille Opening . . . . . . . . . . . . . . .4S407 . . . . . . Center of Grille Opening . . . . . . . . . . . . . . .4S408 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4S409 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4

SpliceNumber Locations Fig.S410 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4S411 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4S412 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4S413 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4

8W - 95 - 2 8W-95 SPLICE LOCATIONS ZJ

Fig

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Fig. 4 Front End Lighting Splices

Fig. 5 Transmission Control Module


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Fig. 7 HVAC Harness Splices

Fig. 8 Roof Splices


Fig. 9 Left Body Splices

Fig. 10 Right Body Splices


Fig. 11 Door Splices

Fig. 12 Trailer Tow Harness Splices


Fig. 14 Tail Lamp Harness Splices

Fig. 13 Liftgate Splices


95ZJ_8W.PDF

Automotive

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matic temperature

3automatic

remote keyless

car temperature

fuel level

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theabs control