Electrical troubleshooting manual Elektrische diagnoseprocedure–handboek Manuel de dépannage électrique Handbuch zur Fehlersuche bei elektrischen Bauteilen Manuale per l'individuazione dei guasti elettrici Manual de localización de averías eléctricas Manual de diagnóstico de avarias eléctricas DISCOVERY
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Electrical troubleshooting manual
Elektrische diagnoseprocedure–handboek
Manuel de dépannage électrique
Handbuch zur Fehlersuche bei elektrischen Bauteilen
Manuale per l'individuazione dei guasti elettrici
Manual de localización de averías eléctricas
Manual de diagnóstico de avarias eléctricas
DISCOVERY
AMENDMENT INSTRUCTION SHEET
DISCOVERY ELECTRICAL TROUBLESHOOTINGMANUALPublication Number LRL0077ENX - 5th Edition
Amendment Number: LJ003.98 Date: 04/98
To ensure that this manual is kept up to date and that a record of amendments to this manual is available, anAmendment Instruction Sheet will be issued with each set of revised pages.
• The Title page of the Manual is re-issued, and the Part No. has been raised to the next edition. Except for theContents pages, all revised and new pages have the issue date at the foot of each page, together with anindication of whether the pages are revised or new.
• This Amendment Instruction Sheet must be inserted at the front of the manual to indicate that the amendmenthas been incorporated. Do not discard previous Amendment Instruction sheets.
• Your manual is only complete to this issue providing all prior Amendments are included.
• The filing instructions give section and page numbers affected. Additional pages or complete new sections maybe issued, insert the pages as instructed.
FILING INSTRUCTIONS
Section Discard ExistingPages
Insert New Pages Reason for Amendment
Contents Contents Contents New entry added for NAS Premium Radio.Part number raised to next edition.
E8 - Premium Radio(NAS 98)
--- Pages 1 to 8 New cell added for NAS Premium Radio.File immediately after cell E7.
L1 - Power Windows Page 3 Page 3 Z102 A/C Thermostat Unit incorrect, shouldbe Z162 Sunroof Control Unit
Y2 - Fuse Details Page 17 Page 17 Additional fuse details for NAS PremiumRadio.
Y5 - GroundDistribution
Pages 1 and 35 Pages 1 and 35 Additional information added to Ground andSplice Index. Ground point E302 added.
Z4 - ComponentLocation Table
Complete cell Complete cell Additional entries for the NAS PremiumRadio.
Z5 - ComponentLocation Views
Page 69 Page 69 Additional location views for the NASPremium Radio.
Z6 - Connector Views Pages 23, 33, 61,63
Pages 23, 33, 61,63
Changes to cnnector face view informationfor the NAS Premium Radio.
AMENDMENT INSTRUCTION SHEET
DISCOVERY ELECTRICAL TROUBLESHOOTINGMANUALPublication Number LRL0077ENX - 6th Edition
Amendment Number: LJ001.99 Date: 01/99
To ensure that this manual is kept up to date and that a record of amendments to this manual is available, anAmendment Instruction Sheet will be issued with each set of revised pages.
• The Title page of the Manual is re-issued, and the Part No. has been raised to the next edition. Except for theContents pages, all revised and new pages have the issue date at the foot of each page, together with anindication of whether the pages are revised or new.
• This Amendment Instruction Sheet must be inserted at the front of the manual to indicate that the amendmenthas been incorporated. Do not discard previous Amendment Instruction sheets.
• Your manual is only complete to this issue providing all prior Amendments are included.
• The filing instructions give section and page numbers affected. Additional pages or complete new sections maybe issued, insert the pages as instructed.
FILING INSTRUCTIONS
Section Discard ExistingPages
Insert New Pages Reason for Amendment
Contents Contents Contents Part number raised to next edition.
E8 - Premium Radio(NAS 98)
Page 7 Page 7 Error corrected, no sub woofer amplifierfitted.
Z4 - ComponentLocation Table
Complete cell Complete cell Amended entries because no sub wooferamplifier fitted.
Z5 - ComponentLocation Views
Page 69 Page 69 Clarification on connector numbers.
Z6 - Connector Views Page 63 Page 63 Changes to connector face view informationbecause no sub woofer amplifier fitted.
Before you replace a component, check power,signal, and ground wires at the component har-ness connector.
4. Repair the Problem
* " /%" .," &#& ,-+(") &. &!"*/&#&"! )'" /%"
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,-+ "!0-".
5. Check the Repair
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INTRODUCTIONi
4
% %#")$ &%& & "$ " &$ &"
"$ "!&!'&* " &$ %")% ")
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$'& ") $%%&! !% "" "!&!'&*
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$'&% && "!&! %" %&& (% &"
&% (% * $%'&
"% ! %" %&& (% ! $'& !
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$! $($% & % ! & %"!
$! & $!% $ & " #"!!& %
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&&$* ! &)" % & % $ &"'
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)"$! "! & &)" #"!&% "! & $'&
&$"' ) &$ %"' "!&!'&* "!!&
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INTRODUCTION i
5
SYMBOLS
The abbreviations and symbols explained here areused throughout the manual; it is necessary to knowwhat they mean in order to use the diagramseffectively.
For vehicles not equipped with Theft Alarm andEngine Immobilisation:
877-1+ 7,) +1-7-21 :-7', # -1 326-7-21
%33/-)6 &%77)5; 92/7%+) 72 7,) 7%57)5 2/)12-(
)/%;6 7)50-1%/ "-7, 7,) 9),-'/) -1 %5.
25 )875%/ 8720%7-' 21/; 7,) 7%57)5 2/)12-(
)/%; )1)5+-6)6 %77)5; 92/7%+) -6 7,)1
%33/-)( (-5)'7/; 72 7,) 7%57)5 2/)12-( %1(
7,) 7%57)5 9-% 7,) 1+-1) 002&-/-6%7-21
21752/ !1-7 3-()5 $ 6,257-1+ 3/8+
25 9),-'/)6 127 )48-33)( :-7, ,)*7 /%50 % &/%'.
:-5) -6 86)( 72 6,257 3-16 %1( 2*
On Japan and manual transmission vehicles, aground path is provided directly to the StarterSolenoid Relay’s (K137) 86 terminal.
On automatic transmission vehicles, a ground path isprovided to the Starter Solenoid Relay’s (K137) 86terminal via the Park/Neutral Position Switch (X167).
The Cruise Control System can be disabled in one offour ways:
1. $'% ! &$! )& % "'& &
"!%&! $!( "!)$ $! & $'%
! &$! ('' "'"
$% & %& %" !$*
2. The RES/DECEL Switch is depressed, signallingthe Cruise Control ECU (Z121) to disengage thesystem.
3. The brake pedal is depressed, and a vacuumvalve in the Brake Switch Vent Valve opens(X112). This vents vacuum to the actuator valveand releases the throttle.
4. The Voltage applied to Cruise Control ECU(Z121) terminal 9 is interrupted, causing theCruise Control ECU (Z121) to turn off thevacuum pump and de–energise the vacuumsolenoid valve. This voltage path is interruptedwhen the brake pedal is depressed, the ClutchPedal is depressed, or the vehicle is in Park orNeutral. With the brake pedal depressed, theBrake Switch Vent Valve (X112) moves to 1 andthe circuit is interrupted. With the vehicle in Parkor Neutral, the Park/Neutral Position Switch(X167) energises the Cruise Control LockoutRelay (K110) by grounding the relay’s coil. Therelay then opens its contacts, interrupting thecircuit. With the clutch pedal depressed, theClutch Switch (X200) moves to 1 and the circuitis interrupted.
NOTE: For 300 Tdi vehicles equipped with an EDCDiesel engine, the Cruise Control System can alsobe disabled by the Engine Control Module (ECM)(Z132) when an engine fault has been detected.
CRUISE CONTROL B5
CIRCUIT OPERATION 3
(& # %(& #"'%# & "#'
%#!!" #" *"" &"#* #)% #%
& $$%+ %#& #% " )+ '% #"'#"& *%
#"&'"' &$ ""#' !"'"
1. Start the engine and depress the Cruise ControlSwitch (X115) to activate the Cruise ControlSystem. Accelerate to approximately 30 mph (50km/h) and press the SET/ACCEL Switch.Immediately release the switch and remove footfrom the accelerator pedal. The vehicle shouldmaintain the speed at which the SET/ACCELSwitch was pressed.
2. Press the SET/ACCEL Switch and hold at thatposition. The vehicle should accelerate smoothlyuntil the switch is released. The vehicle shouldnow maintain the new speed at which theSET/ACCEL Switch was released.
3. Press the RES/DECEL Switch while the vehicleis in the cruise control mode. The cruise controlshould disengage. Slow to approximately 35 mph(55 km/h) and press the RES/DECEL Switch.Immediately release the switch and remove footfrom the accelerator. The vehicle shouldsmoothly accelerate to the previously set speed.Increase speed using the accelerator pedal.Releasing the pedal should return the vehicle tothe previously set speed.
4. Depressing the brake pedal should immediatelydisengage the Cruise Control System and returnthe vehicle to driver’s control at acceleratorpedal. Press the RES/DECEL Switch and thevehicle should accelerate to the previously setspeed without operation of the accelerator pedal.
5. Press the RES/DECEL Switch and allow thevehicle to decelerate to below 26 mph (42 km/h).Press the RES/DECEL Switch and the CruiseControl System should remain disengaged.
6. Press the SET/ACCEL Switch below 28 mph (45km/h) and the Cruise Control System shouldremain disengaged. Accelerate the vehicleabove 28 mph (45 km/h), press the RES/DECELSwitch and remove foot from the acceleratorpedal. The vehicle should smoothly adjust to thepreviously memorized speed.
7. Pressing the Cruise Control Switch (X115)should immediately disengage the Cruise ControlSystem and erase the previously set speed fromECU memory.
CRUISE CONTROLB5
4 CIRCUIT DIAGRAM
15F 1410 A
15 C208
See Fuse Details
MALFUNCTION
INDICATOR
LAMP (CHECK
ENGINE)
2 C222
1 C222
RS
6 C217
Z142InstrumentCluster
P126Fascia Fuse Box
X115Cruise ControlSwitch
1 C262
4 C2625
WY
2RN
0
[1]
Interior Lamps
S253HJ8
E201
See Ground Dis-tribution
B
A
B5-5
85
86
30
87a
K234Cruise ControlDisable Relay
86 87a C2107GY
30 C210785
S2111GLG
4 C243Z132Engine ControlModule (ECM)
S2103
RS
Warnings andIndicators
2 C209
S2112
RS
15F 1810 A
18 C204
See Fuse Details
S274HJ1
GLG
22 C217300Tdi withoutEDC
MFI–T16MFI–V8
300Tdi with EDC
16 C215
GY
NAS
23 C217
23 C217
Except NAS
Except NAS
S214HJ9 LG
GLG
GY
CRUISE CONTROL B5
5CIRCUIT DIAGRAM
S219
Z119Rotary Coupler
4 C2036
3 C284
5
4
0
10
Z121Cruise ControlECU
X266Steering WheelCruise Switches
[1] RES/DECELDepressed
[2] SET/ACCELDepressed
RWUW
Z119Rotary Coupler
[1] 0 [2]
1 C2010
2 C2036
PB
4 C20103
GRYB
W
GRYB
A
B5-4
12 C209
WY
D
B5-11
C
B5-9
NAS
B
B5-8
Except NASAutomaticTransmission
Manual Trans-mission
Manual Trans-mission
CRUISE CONTROLB5
6 CIRCUIT DIAGRAM
M
Z142InstrumentCluster
[1] Speedom-eter
[12] VehicleSpeed Out-put
4 C221
S2030
E200
[1]
[12]
17 C209
Instruments
YK
11 1 7 6
81a 81
82a
8
C167
C167
C284
C284
M103Cruise ControlVacuum Pump
Z121Cruise ControlECU
S2015HJ10
B
BYBRWU
See Ground Dis-tribution
14 C205
1 C2062
Z148Multi–FunctionUnit (MFU)
X241Saudi JunctionConnector
1 C2062Y
HJ2
YK
YK
Y
YK
CRUISE CONTROL B5
7CIRCUIT DIAGRAM
10
P126Fascia Fuse Box
C204
C227
C227
Without ABSWith ABS
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
1
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
GO
2
15F 115 A
[1]
[2]0
S2042
GP
[1]
C2063
0
GO
1 C2004
C2063
1 C2003
GP
Z206Stop LampSwitch Sup-pressor
With ABS
Z121Cruise ControlECU
Stop Lamps
C2845
Without ABS
GOHJ1
2
GP
See Fuse Details
S2011HJ3
[2]
R
R
1
CRUISE CONTROL (AUTOMATIC TRANSMISSION)B5
8 CIRCUIT DIAGRAM
86
85
30
87a87
C218
C2021
5
87a
C20213086
C20052
C2849
C2005110 C274X112Brake SwitchVent Valve
[1] Brake PedalDepressed
Z121Cruise ControlECU
K110Cruise ControlLockout Relay
Z186Cruise ControlDiode
Z163Theft Alarm Unit
PG
PY
WSWS
WY
B
B5-5
0[1]
C2184
With Theft Alarm
BO
Without TheftAlarm
11 C274BO
BO
C27411
BO
B
C27410
With Theft Alarm Without TheftAlarm
S2005HJ10
S322
X167Park/NeutralPosition Switch
5 C323
10 C105
BY
B
BG
Starting andCharging
D 32
1PR
N
BY
2
85
4 C323
BO
11 C105
S204
E200
See Ground Dis-tribution
HJ3
Automatic Trans-mission
CRUISE CONTROL (EXCEPT NAS) (MANUAL TRANSMISSION) B5
9CIRCUIT DIAGRAM
Z140Ignition Coil
WB
1 C155
Z164Speed Trip Mod-ule
30
B5-5
U
1 C154
16 C217
4 C218
WS
WU
86 C2021
87 C2021
30
85PWB
3 C2187
D
B5-10
K115Multiport Fuel In-jection IgnitionResistor 1
K168Multiport Fuel In-jection IgnitionResistor 2
WY
Z186Cruise ControlDiode
E200
86
85 87
S204HJ3
See Ground Dis-tribution
6.8 KΩ
6.8 KΩ
1–
Multiport Fuel In-jection (MFI–V8)
C
WU
1 C218
Not used
MFI–T16MFI–V8
Except NAS
300Tdi
Manual Trans-mission
CRUISE CONTROL (EXCEPT NAS) (MANUAL TRANSMISSION)B5
10 CIRCUIT DIAGRAM
Except NAS
PW
0[1]
D
B5-9
0[1]
1 C2035
1 C2005
9 C284
X200Clutch PedalPosition Switch
[1] ClutchPedal De-pressed
X112Brake SwitchVent Valve
[1] Brake PedalDepressed
Z121Cruise ControlECU
2 C2035
2 C2005
6 C218
5 C218
P
PY
PG
P
Manual Trans-mission
CRUISE CONTROL (MANUAL TRANSMISSION) (NAS) B5
11CIRCUIT DIAGRAM
NAS
WY
0[1]
B5-5
0[1]
1 C2035
1 C2005
9 C284
X200Clutch PedalPosition Switch
[1] ClutchPedal De-pressed
X112Brake SwitchVent Valve
[1] Brake PedalDepressed
Z121Cruise ControlECU
2 C2035
2 C2005
6 C218
5 C218
P
PY
PG
P
4 C218
3 C218
WS
D
Z186Cruise ControlDiode
Manual Trans-mission
IGNITION AND SHIFT INTERLOCK C1
CIRCUIT OPERATION 1REV: 11/97
CIRCUIT OPERATION
Selector Interlock
When the gear selector is in the park position, thesolenoid inside the Transmission Range SelectorSwitch (Z110) is de–energised and prevents theselector from being moved into another gear. To freethe selector, the Ignition Switch (X134) must be inposition II and the brake pedal must be depressed.When this occurs, voltage from Fuse F1 is applied tothe Transmission Range Selector through the closedStop Lamp Switch (X168). The solenoid inside theTransmission Range Selector Switch is grounded atE200 through the selector switch, the KS wire andthe B wire. The solenoid now energises, freeing theselector.
Ignition Key Interlock
On vehicles equipped with the interlock safetyfeature, the vehicle must be in park and the transfercase in high or low gear before the key can beremoved from the ignition. If the gear selector ortransfer gear is out of gear, the key must be cycledbefore removal.
If the vehicle is not in park, voltage from Fuse F12 isapplied to the Key Barrel Switch (X230) through theclosed contacts of the Transmission Range SelectorSwitch (Z110). When the ignition switch is placed inthe 0 position, the Key Barrel Switch (X230) closesto energise the solenoid and prevent key removal.
If the key is in the ignition and the transfer box is inthe neutral position, Interlock Relay 1 (K153) isde–energised since the relay coil is not grounded bythe Transfer Box Position Switch (X175). When therelay is de–energised, voltage is applied to the KeyBarrel Switch (X230) through the relay’s switchcontacts and the Key–In Switch (X229) causing thesolenoid to energise and prevent key removal.
If the Transfer Box is in the “H” or “L” position, theInterlock Relay 1 (K153) is energised, since the relaycoil is grounded by the Transfer Box Position Switch(X175). When the relay is energised, voltage to theKey Barrel Switch (X230) is interrupted. If the vehicleis in Park the Transmission Range Selector Switch(Z110) contacts are open. When the switch contactsare open, voltage to the Key Barrel Switch (X230) isalso interrupted. The Ignition Key Lock Solenoid(K191) is then disabled, allowing removal of the key.
Transfer Box Interlock (NAS vehicles with automatic transmission only)
The Transfer Box Interlock safety feature is designedto prevent the transfer case shifter from being shiftedout of “H” or “L” unless the vehicle’s gear selector isin the neutral position.
When the gear selector is placed in the neutralposition, voltage is applied to the Interlock Relay 2’scoil through the Transmission Range Selector Switch(Z110). The relay’s coil is grounded through thePark/Neutral Position Switch (X167).
Interlock Relay 2 now energises and applies voltagefrom Fuse F13 to the Transfer Box Solenoid (K161).When the Transfer Box Solenoid (K161) is energisedthe transfer box shifter can be operated.
IGNITION AND SHIFT INTERLOCKC1
2 CIRCUIT DIAGRAM
10
P126Fascia Fuse Box
C204
C227
C227
Without ABSWith ABS
S2011
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
1
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
GO
2
15F 115A
[1]
[2]0
S2042
GP
[1]
C2063
0
GO
1 C2004
C2063
1 C2003
GPZ206Stop LampSwitch Sup-pressor
With ABS
Stop Lamps
Without ABS
GOHJ1
2
GP
HJ3
See Fuse Details
[2]
R
R
1
A
C1-3
IGNITION AND SHIFT INTERLOCK C1
3CIRCUIT DIAGRAM
KS
S2018
30F 1210 A C1-2
B
C1-5
C
C1-4
C20417
See Fuse Details
S2021HJ6 P
1 2 5 6 C344
GP
R B OYZ110TransmissionRange SelectorSwitch
See Ground Dis-tribution
NW
4
BR
HJ6
E200
S238HJ5
B
3 C344
BW
P
R
N D3
2
1 P
R
ND 3
2
1
A
Mechanical Con-nection
P126Fascia Fuse Box
BW
Interlock Sole-noid
X230Key–BarrelSwitch
[1] Key in Posi-tion 0
K191Ignition KeyLock Solenoid
See Ground Dis-tribution
5 C2012KR
C20123
C20141
E200
S2025BC20142
OW
0 [1]
HJ5
BR
IGNITION AND SHIFT INTERLOCKC1
4 CIRCUIT DIAGRAM REV: 11/97
30F 1210 A
C
C1-3
H NL
P126Fascia Fuse Box
X229Key–In Switch
[1] Key In-serted
K153Interlock Relay 1
X175Transfer Box Po-sition Switch
Z148Multi–FunctionUnit (MFU)
See Fuse Details
C20417
7 C2012W
B
C20126
WP
S2014HJ3
30 86 C2000
87 85 C2000RB
Z189Interlock Diode 1
BR
BK
7 C105
3 C368
2 C368
S343See Ground Dis-tribution
B
E201
21 C20530
87
86
85
0 [1]
GN
LGY
S2119
4 C2013
Not used
WP
S2068
3 C205
BK
S2021HJ6 P
NASAutomatic Trans-mission
IGNITION AND SHIFT INTERLOCK C1
5CIRCUIT DIAGRAMREV: 11/97
86
85
30
87
C105
C2001
6
87
C20013086
10 C274
K151Interlock Relay 2
Z232Transfer BoxSolenoid Diode
Z163Theft Alarm Unit
SB
WY
BR
B
C1-3
With Theft Alarm
BO
Without TheftAlarm
11 C274BO
BO
C27411BO
B
C27410
With Theft Alarm Without TheftAlarm
S2005HJ10
S322
X167Park/Neutral Po-sition Switch
5 C323
10 C105
BY
B
BG
Starting andCharging
D 32
1PR
N
YB85
4 C323
S204
E200
See Ground Dis-tribution
HJ3
Z190Interlock Diode 2
E201
See Ground Dis-tribution
15F 1310 A
P126Fascia Fuse Box
C2262
C3691
S335
B
R
K161Transfer BoxSolenoid
C3692
S343
BB
BY
SBBO
See Fuse DetailsS2054HJ5
C10511
NASAutomatic Trans-mission
ANTI–LOCK BRAKE SYSTEM D1
1CIRCUIT DIAGRAM
F 415
3 2 C227
4 1 C227
P127Satellite FuseBox 1
P126Fascia Fuse BoxF 1
S2042
X168Stop LampSwitch
[1] BrakePedal De-pressed
[2] BrakePedalFurtherDe-pressed
S132
E204
5A 15A
15
WR
GP
B3127 C2084
B
25 C208410
See Fuse Details
See Ground Dis-tribution
Z108Anti–Lock BrakeSystem ECU
WS
10 C204
0 [2][1]
[2]
[1]
S2093
S2011
Z206Stop LampSwitch Sup-pressor
Stop Lamps
E203
HJ3
HJ1
GP
GO
R1 C2063
R
2 C2063
GO
9
8 C1026
Z132Engine ControlModule (ECM)
1 C1017
YK
29
NAS
ANTI–LOCK BRAKE SYSTEMD1
2 CIRCUIT DIAGRAM
M
MF 630
3 C115
3 4 C2094
1 2 C2094
P125Engine Compart-ment Fuse Box
P128Satellite FuseBox 2
F 3
K102A.B.S. Pump Re-lay
M102A.B.S. HydraulicPump
2 C125
E201
40 A
30
10 A
NO
WO
B
N
B
14 C20841330
B WLG74
See Ground Dis-tribution
30
87
86
85
Z108Anti–Lock BrakeSystem ECU
NR
11 C2084
Z108Anti–Lock BrakeSystem ECU
S2057
16 C2083
15 C2083WK
E101
1 C125R
S2051
X318Data Link Con-nector (OBDII)
E204
See Ground Dis-tribution
See Ground Dis-tribution
S2108
S2114
Data Link Con-nector
3 C2029
S2120 See Fuse Details
WR
ANTI–LOCK BRAKE SYSTEM D1
3CIRCUIT DIAGRAM
LG
15 C208
15F 1410 A
P126Fascia Fuse Box
S214
2 C222Z142InstrumentCluster
2 C207
26 C2084
20 C209
Z108Anti–Lock BrakeSystem ECU
BS
S2056
See Fuse Details
HJ9
30F 530 A
P125Engine Compart-ment Fuse Box
Z108Anti–Lock BrakeSystem ECU
K101A.B.S. Load Re-lay
K103A.B.S. WarningRelay
3 C100
30 C209386
87 C209385
86 30 C2092
85 87a C2092
8 C208419
OK
B NK
BGNK
S2088
S2051
86
85
30
87
86
85 87a
30
E204
See Ground Dis-tribution
B B
1
ANTI–LOCK BRAKE SYSTEMD1
4 CIRCUIT DIAGRAM
X137Left Front WheelSpeed Sensor
X158Right FrontWheel SpeedSensor
X140Left Rear WheelSpeed Sensor
X161Right Rear WheelSpeed Sensor
Z108Anti–Lock BrakeSystem ECU
Z103A.B.S. BoosterUnit
[1] Left Front[2] Right Front[4] Left Rear[5] Right Rear
1 2 C130
1 2 C131
1 2
1 2
32 17 34 18 35 16 33
5 8 1 7 4 12 2 11 C129
E204
G G G G W W W
SK SN SR SU SG SP SY SW
[1] [1] [2] [2] [4] [4] [5] [5]
23 24 6 7 21 22 4 5 C2084
C486
C485
C2084
W
6 9 10 13 C129
S132
See Ground Dis-tribution
15
BB B
B
DATA LINK CONNECTOR D3
1CIRCUIT DIAGRAM
30F 310 A
P128Satellite FuseBox 2
Z163Theft Alarm Unit
17 C225
WR
8 16 13
2
KB
YKYLG
X318Data Link Con-nector (OBDII)
4
B
5 C2083
B
S204
E200
C2083
C2097
E201
3 C2029
See Ground Dis-tribution
Z151Air Bag Diagnos-tic Control Mod-ule
20 C35411
See Ground Dis-tribution
HJ3
Not used
NASExcept NAS
NASExcept NAS
S2107
MFI–V8
8 C217
Z132Engine ControlModule (ECM)
31 C243
LGP
Z276Diesel Immobi-lisation Unit(DDS)
1 C1040
B
300Tdi with EDC 300Tdi with EGR
MFI–T16300Tdi withoutEGR
Not used
KB
1
DATA LINK CONNECTORD3
2 CIRCUIT DIAGRAM
7
S2108
14 C217
WLGWith ABS
Z108Anti–Lock BrakeSystem ECU
X318Data Link Con-nector (OBDII)
15 C2083
WK
WLG WK
S211413 C208414
WLG WK
Without ABS
With ABS Without ABS
15 14 C217
Not used
Z132Engine ControlModule (ECM)
27 C24342
WLG WK
15
300Tdi with EDC MFI–T16
14 C21715
MFI–V8
Not used2 C1026
Z132Engine ControlModule (ECM)
20 C101723
1
SFI–V8300Tdi withoutEDC
CIRCUIT OPERATION
Speedometer
The Vehicle Speed Sensor (X190) sends a signal tothe speedometer in the form of voltage pulses. Thepulses are filtered by a Vehicle Speed Sensor Bufferinside the speedometer. The voltage alternatesbetween battery voltage and 0 volts 6 times perwheel revolution. The speed sensor signal is alsosent to the Cruise Control ECU (Z121), MultifunctionUnit (MFU) (Z148) (Persian Gulf States), and theEngine Control Module (Z132).
Tachometer
The tachometer displays engine speed in rpm.Voltage pulses are taken from the Generator (Z106)and are generated when the engine drive belt turnsthe Generator pulley. The tachometer responds tothe frequency of the voltage pulses, which increasesproportionally to that of the engine speed.
Engine Coolant Temperature Gauge
The Engine Coolant Temperature Sensor (X114) hasapproximately 136 ohms resistance when the coolanttemperature is low. As coolant temperatureincreases, the resistance of the sensor decreases.This varying resistance causes the current throughthe sensor to change and the gauge to register thetemperature. When the coolant is hot, the resistanceof the sensor is approximately 17 ohms.
Fuel Gauge
When the fuel tank level is low, the resistance of thefuel gauge sender is approximately 245 ohms. As thefuel level increases, the resistance of the senderdecreases, causing the gauge to register the change.When the fuel tank is full, the resistance of the senderis approximately 19 ohms. When the fuel gaugesender’s resistance falls below approximately 25ohms (6 liters/1.5 US gallons), the fuel warning lightwill illuminate to warn the driver .
INSTRUMENTS E1
1CIRCUIT OPERATION
INSTRUMENTSE1
2 CIRCUIT DIAGRAM
1 C370
See Fuse Details
See Fuse Details15 C20820 C204
3 C370
BR
2 C105
5 C209
2 C221
LG
S2049
S214
2 C222
P126Fascia Fuse Box
X190Vehicle SpeedSensor
4 C221YK
15F 1410 A
[1]
[12]
[11]
A
E1-3
S344GY
1
B
S253HJ8
See Ground Dis-tribution
E201
17 C209
Instruments
Warnings andIndicators31
15
HJ9
Z142InstrumentCluster
[1] Speedome-ter
[11] VehicleSpeed Input
[12] VehicleSpeed Out-put
INSTRUMENTS E1
3CIRCUIT DIAGRAM
A
E1-2
S2030
6 C243Z132Engine ControlModule (ECM)
29 C243Z132Engine ControlModule (ECM)
Not used
MFI–V8 300Tdi withoutEDC
MFI–T16300Tdi with EDC
12 C217
YK
Z132Engine ControlModule (ECM)
11 C284Z121Cruise ControlECU
27 C1017
HJ2S2030HJ2
Except NASNAS
YK
5 C1027
87 C2106Z126Service Re-minder Unit
11 C284Z121Cruise ControlECU
1 C2062
14 C205Z148Multi–FunctionUnit (MFU)
Y
X241Saudi JunctionConnector
1 C2062
YYK
INSTRUMENTSE1
4 CIRCUIT DIAGRAM
15F 1410 A
P126Fascia Fuse Box
C208See Fuse De-tails
S214
LG
2 C215
Starting andCharging
WS
K184Phase Tap Resis-tor
Z106Generator
W
Z142InstrumentCluster
[2] Tachometer
5 C207
[2]
1 C221
See Ground Dis-tribution
B
S253
E201
B E1-5
WS
820
1 C147
Petrol Diesel
300Tdi with EGR
WS
15
HJ9
HJ8
Instruments
Warnings andIndicators
15 15
31 31
2 C222
Petrol Diesel
19 C217
NAS Except NAS
NAS Except NAS
19 C2172 C1027
1 C147
INSTRUMENTS E1
5CIRCUIT DIAGRAM
Z142InstrumentCluster
[3] Fuel Gauge[4] Temperature
Gauge[8] CPU[10] Low Fuel
Warningand Anti-slosh Con-trol
S255
GU
3 C221
[10]
E1-4
[3][4]
[8]
Warnings andIndicators
Warnings andIndicators
8 C222
15 C215
GB
6
Warnings andIndicators
E201
9.1
B
1 C221
B
1 C255
B
Instruments
31 31
15
15
S253
HJ8
HJ8
31
See Ground Dis-tribution
1 C151
20 C2171 C1027
NAS Except NAS
NAS Except NAS
X114Engine CoolantTemperatureGauge Sensor
C
E1-6See Ground Dis-tribution
INSTRUMENTSE1
6
1 C434
Z134Fuel Pump Mod-ule
[1] Fuel LevelSensor
[1]
B2 C434
B
See Ground Dis-tribution
S415
E400E404
E1-5C
GB
Z132Engine ControlModule (ECM)
S2100
Except NAS NAS
Except NAS NAS
7 C1017
GB
13 C1026
23 C277
2 C407
INSTRUMENTSE1
2 CIRCUIT DIAGRAM
1 C370
See Fuse Details
See Fuse Details15 C20820 C204
3 C370
BR
2 C105
5 C209
2 C221
LG
S2049
S214
2 C222
P126Fascia Fuse Box
X190Vehicle SpeedSensor
4 C221YK
15F 1410 A
[1]
[12]
[11]
A
E1-3
S344GY
1
B
S253HJ8
See Ground Dis-tribution
E201
17 C209
Instruments
Warnings andIndicators31
15
HJ9
Z142InstrumentCluster
[1] Speedom-eter
[11] VehicleSpeed Input
[12] VehicleSpeed Out-put
INSTRUMENTS E1
3CIRCUIT DIAGRAM
A
E1-2
S2030
6 C243Z132Engine ControlModule (ECM)
29 C243Z132Engine ControlModule (ECM)
Not used
MFI–V8 300Tdi withoutEDC
MFI–T16300Tdi with EDC
12 C217
YK
Z132Engine ControlModule (ECM)
11 C284Z121Cruise ControlECU
27 C1017
HJ2S2030HJ2
Except NASNAS
YK
5 C1027
87 C2106Z126Service Re-minder Unit
11 C284Z121Cruise ControlECU
1 C2062
14 C205Z148Multi–FunctionUnit (MFU)
Y
X241Saudi JunctionConnector
1 C2062
YYK
INSTRUMENTSE1
4 CIRCUIT DIAGRAM
15F 1410 A
P126Fascia Fuse Box
C208See Fuse De-tails
S214
LG
2 C215
Starting andCharging
WS
K184Phase Tap Resis-tor
Z106Generator
W
Z142InstrumentCluster
[2] Tachometer
5 C207
[2]
1 C221
See Ground Dis-tribution
B
S253
E201
B E1-5
WS
820
1 C147
Petrol Diesel
300Tdi with EGR
WS
15
HJ9
HJ8
Instruments
Warnings andIndicators
15 15
31 31
2 C222
Petrol Diesel
19 C217
NAS Except NAS
NAS Except NAS
19 C2172 C1027
1 C147
INSTRUMENTS E1
5CIRCUIT DIAGRAM
Z142InstrumentCluster
[3] Fuel Gauge[4] Temperature
Gauge[8] CPU[10] Low Fuel
Warningand Anti-slosh Con-trol
S255
GU
3 C221
[10]
E1-4
[3][4]
[8]
Warnings andIndicators
Warnings andIndicators
8 C222
15 C215
GB
6
Warnings andIndicators
E201
9.1
B
1 C221
B
1 C255
B
Instruments
31 31
15
15
S253
HJ8
HJ8
31
See Ground Dis-tribution
1 C151
20 C2171 C1027
NAS Except NAS
NAS Except NAS
X114Engine CoolantTemperatureGauge Sensor
C
E1-6See Ground Dis-tribution
INSTRUMENTSE1
6
1 C434
Z134Fuel Pump Mod-ule
[1] Fuel LevelSensor
[1]
B2 C434
B
See Ground Dis-tribution
S415
E400E404
E1-5C
GB
Z132Engine ControlModule (ECM)
S2100
Except NAS NAS
Except NAS NAS
7 C1017
GB
13 C1026
23 C277
2 C407
INSTRUMENTSE1
2 CIRCUIT DIAGRAM
1 C370
See Fuse Details
See Fuse Details15 C20820 C204
3 C370
BR
2 C105
5 C209
2 C221
LG
S2049
S214
2 C222
P126Fascia Fuse Box
X190Vehicle SpeedSensor
4 C221YK
15F 1410 A
[1]
[12]
[11]
A
E1-3
S344GY
1
B
S253HJ8
See Ground Dis-tribution
E201
17 C209
Instruments
Warnings andIndicators31
15
HJ9
Z142InstrumentCluster
[1] Speedom-eter
[11] VehicleSpeed Input
[12] VehicleSpeed Out-put
INSTRUMENTS E1
3CIRCUIT DIAGRAM
A
E1-2
S2030
6 C243Z132Engine ControlModule (ECM)
29 C243Z132Engine ControlModule (ECM)
Not used
MFI–V8 300Tdi withoutEDC
MFI–T16300Tdi with EDC
12 C217
YK
Z132Engine ControlModule (ECM)
11 C284Z121Cruise ControlECU
27 C1017
HJ2S2030HJ2
Except NASNAS
YK
5 C1027
87 C2106Z126Service Re-minder Unit
11 C284Z121Cruise ControlECU
1 C2062
14 C205Z148Multi–FunctionUnit (MFU)
Y
X241Saudi JunctionConnector
1 C2062
YYK
INSTRUMENTSE1
4 CIRCUIT DIAGRAM
15F 1410 A
P126Fascia Fuse Box
C208See Fuse De-tails
S214
LG
2 C215
Starting andCharging
WS
K184Phase Tap Resis-tor
Z106Generator
W
Z142InstrumentCluster
[2] Tachometer
5 C207
[2]
1 C221
See Ground Dis-tribution
B
S253
E201
B E1-5
WS
820
1 C147
Petrol Diesel
300Tdi with EGR
WS
15
HJ9
HJ8
Instruments
Warnings andIndicators
15 15
31 31
2 C222
Petrol Diesel
19 C217
NAS Except NAS
NAS Except NAS
19 C2172 C1027
1 C147
INSTRUMENTS E1
5CIRCUIT DIAGRAM
Z142InstrumentCluster
[3] Fuel Gauge[4] Temperature
Gauge[8] CPU[10] Low Fuel
Warningand Anti-slosh Con-trol
S255
GU
3 C221
[10]
E1-4
[3][4]
[8]
Warnings andIndicators
Warnings andIndicators
8 C222
15 C215
GB
6
Warnings andIndicators
E201
9.1
B
1 C221
B
1 C255
B
Instruments
31 31
15
15
S253
HJ8
HJ8
31
See Ground Dis-tribution
1 C151
20 C2171 C1027
NAS Except NAS
NAS Except NAS
X114Engine CoolantTemperatureGauge Sensor
C
E1-6See Ground Dis-tribution
INSTRUMENTSE1
6
1 C434
Z134Fuel Pump Mod-ule
[1] Fuel LevelSensor
[1]
B2 C434
B
See Ground Dis-tribution
S415
E400E404
E1-5C
GB
Z132Engine ControlModule (ECM)
S2100
Except NAS NAS
Except NAS NAS
7 C1017
GB
13 C1026
23 C277
2 C407
WARNINGS AND INDICATORS (EXCEPT NAS) E2
CIRCUIT OPERATION 1
CIRCUIT OPERATION
Hazard Indicator
If the Hazard Switch (X220) is depressed, a pulsingvoltage is applied to the Hazard Indicator which ispermanently grounded by ground E200.
Direction Indicator
If the Direction Indicator Switch (X116) is turned on,a pulsing voltage is applied from the Flasher Unit(Z128) to the Direction Indicator which ispermanently grounded by ground E200.
Trailer Indicator
With the Direction Indicator Switch (X116) turned on,the Flasher Unit (Z128) also applies a pulsingvoltage to the Trailer Indicator which is permanentlygrounded by ground E200.
Main Beam Indicator
With the Headlamps turned on by the Main LightingSwitch (X145), battery voltage is applied to the MainBeam Indicator which is also permanently groundedby ground E200.
MFI–V8 and 300Tdi with EDC
Malfunction Indicator Lamp (Check Engine)
The Malfunction Indicator Lamp (Check Engine) isgrounded by the Engine Control Module (ECM)(Z132) when a diagnostic trouble code is set.
Diesel
Glow Plug Indicator
The Glow Plug Indicator is grounded by the GlowPlug Timer Unit (Z135) to indicate that the GlowPlugs have been activated.
Oil Pressure Warning Light
The oil pressure warning light receives batteryvoltage with the Ignition Switch (X134) in position II.If the engine oil pressure is very low, the OilPressure Switch (X149) will apply ground to thewarning light.
Differential Lock Indicator
The Differential Lock Indicator receives batteryvoltage with the Ignition Switch (X134) in position II.It is grounded by the Differential Lock Switch (X238)when the Differential is locked.
Brake Warning Light
The brake warning light receives battery voltage withthe Ignition Switch (X134) in position II. It isgrounded by the Brake Fluid Level Switch (X111)when the brake fluid level is low. It may also begrounded when the Handbrake Switch (X191) isclosed.
WARNINGS AND INDICATORS (EXCEPT NAS)E2
CIRCUIT OPERATION2
ABS Warning Light
The ABS warning light receives battery voltage withthe Ignition Switch (X134) in position II. It isgrounded by the Anti–Lock Brake System ECU(Z108) or the ABS Warning Relay (K103) in theevent of an ABS problem.
Engine Immobilised Warning Lamp (EIWL)
"&# $$"( & $ '$ $ $
'$ ! #$ $ # " % ( $
$ " $ $ $ $ '
$ #
Flashing = Immobilised
Continuous = Immobilised (Cirrus Fail)
Theft Alarm LED
The Theft Alarm LED receives battery voltage at alltimes. It is grounded by the Theft Alarm Unit (Z163)to indicate the following conditions:
Slow Flash = Immobilised or Immobilised andarmed
Rapid Flash = Perimetrically and Volumetricallyarmed
Intermittent Rapid Flash = Perimetrically armed
No Flash for 10 Seconds = Mislock
Continuous = Driver’s door open (or ignition on)and Immobilised
Transmission/Transfer Box Oil Temperature
Warning Light
The transmission/transfer box oil temperaturewarning light is grounded by the AutomaticTransmission Oil Temperature Switch (X108) whenthe temperature of the transmission fluid exceeds130°C (266°F). The warning light is also groundedby the Transfer Box Oil Temperature Switch (X174)when the temperature of the transfer box fluidexceeds 145°C (266°F).
Low Fuel Warning Indicator
When the fuel gauge sender’s resistance falls belowapproximately 25 Ohms (6 liters/1.5 US gallons), theLow Fuel Warning Indicator will illuminate to warnthe driver.
Charge Warning Light
The charge warning light receives battery voltagewith the Ignition Switch (X134) in position II. Thiswarning light is grounded by the Generator (Z106) ifthe Generator is not producing normal power outputor the Generator stops turning.
SRS Indicators
The SRS Indicators are controlled by the Air BagDiagnostic Control Module (Z151) and the SRSIndicator Control Circuit of the Instrument Cluster(Z142) to indicate SRS System faults.
Fasten Seat Belt Indicator
(Gulf States Vehicles Only)
The Fasten Seat Belt Indicator receives batteryvoltage with the Ignition Switch (X134) in position II.The indicator is grounded through the Multi–Function Unit (MFU) (Z148) and the Driver’s SeatBuckle Switch (X120). If the Driver’s Seat Belt isbuckled, the Driver’s Seat Belt Buckle Switch opensand the Indicator turns off.
WARNINGS AND INDICATORS (EXCEPT NAS) E2
3CIRCUIT DIAGRAM
LGG
Instruments
Z142InstrumentCluster
[13] Illumination
Z128Flasher Unit
56dF 410 A
P126Fascia Fuse Box
1 C254
LGU
Warnings andIndicators
9 4 6 3
G UW
4 C208
C207
Direction Indica-tor Lamps
W/L
RN
7 9
RN
C222
Interior Lamps
B
1
E201
C221
[13]
S253
See Ground Dis-tribution
HJ8
31 31 31
31 31 31 31 31 31 31 31
56a
WARNINGS AND INDICATORS (EXCEPT NAS)E2
4 CIRCUIT DIAGRAM
P126Fascia Fuse Box
15
10 A
Z142InstrumentCluster
LG
S214
6 C217
2
RS
1 C222
2 C222
Instruments
MALFUNCTION
INDICATOR LAMP
(CHECK ENGINE)
15 C208
F 14
Warnings andIndicators
See Fuse Details
RS
10 C243
RS
4 C243Z132Engine ControlModule (ECM)
Z132Engine ControlModule (ECM)
MFI–V8 300Tdi with EDCMFI–T16300Tdi withoutEDC
Not used
C209
S2103
HJ9
15
Z163Theft Alarm Unit
RS11 C225
S2112 300Tdi
WARNINGS AND INDICATORS (EXCEPT NAS) (EXCEPT GULF STATES) E2
5CIRCUIT DIAGRAM
C21131
PO7
Z142InstrumentCluster
Diesel
InstrumentsWarnings andIndicators
Not used
15
F 1410 A
P126Fascia Fuse Box
LGC2222
15
15 C208
S214HJ9
See Fuse Details
C2096
BY
C1592Z135Glow Plug TimerUnit
L
BY10 C221
C2154
S2134
9 C217
Not used
MFI–T16MFI–V8
300Tdi
S2015
C20512Z148Multi–FunctionUnit (MFU)
C2057RWC3781
X120Driver’s SeatBuckle Switch
[1] BuckledC3782B
HJ10 See Ground Dis-tribution
E200
[0][1]
1 C2114
Not used
WR
Except GulfStates
WARNINGS AND INDICATORS (EXCEPT NAS) (GULF STATES)E2
If the Hazard Switch (X220) is depressed, a pulsingvoltage is applied to the Hazard Indicator which ispermanently grounded by ground E200.
Direction Indicator
If the Direction Indicator Switch (X116) is turned on,a pulsing voltage is applied from the Flasher Unit(Z128) to the Direction Indicator which ispermanently grounded by ground E200.
Trailer Indicator
With the Direction Indicator Switch (X116) turned on,the Flasher Unit (Z128) also applies a pulsingvoltage to the Trailer Indicator which is permanentlygrounded by ground E200.
Main Beam Indicator
With the Headlamps turned on by the Main LightingSwitch (X145), battery voltage is applied to the MainBeam Indicator which is also permanently groundedby ground E200.
Malfunction Indicator Lamp (Check Engine)
The Malfunction Indicator Lamp (Check Engine) isgrounded by the Engine Control Module (ECM)(Z132) when a diagnostic trouble code is set.
Service Reminder Indicator
The Service Reminder Indicator receives batteryvoltage with the Ignition Switch (X134) in position II.The Service Reminder Unit (Z126) grounds theService Reminder Indicator when the vehiclerequires service. The Service Reminder Indicator isalso grounded by a 3 second timer as a bulb check.
Oil Pressure Warning Light
The oil pressure warning light receives batteryvoltage with the Ignition Switch (X134) in position II.If the engine oil pressure is very low, the OilPressure Switch (X149) will apply ground to thewarning light.
Differential Lock Indicator
The Differential Lock Indicator receives batteryvoltage with the Ignition Switch (X134) in position II.It is grounded by the Differential Lock Switch (X238)when the Differential is locked.
Brake Warning Light
The brake warning light receives battery voltage withthe Ignition Switch (X134) in position II. It isgrounded by the Brake Fluid Level Switch (X111)when the brake fluid level is low. It may also begrounded when the Handbrake Switch (X191) isclosed. The brake warning light is also grounded bya 3 second timer as a bulb check.
WARNINGS AND INDICATORS (NAS)E3
CIRCUIT OPERATION2
ABS Warning Light
The ABS warning light receives battery voltage withthe Ignition Switch (X134) in position II. It isgrounded by the Anti–Lock Brake System ECU(Z108) or the ABS Warning Relay (K103) in theevent of an ABS problem.
Fasten Seat Belt Indicator
(NAS and Gulf States Vehicles Only)
The Fasten Seat Belt Indicator receives batteryvoltage with the Ignition Switch (X134) in position II.The indicator is grounded through the Multi–Function Unit (MFU) (Z148) and the Driver’s SeatBuckle Switch (X120). If the Driver’s Seat Belt isbuckled, the Driver’s Seat Belt Buckle Switch opensand the Indicator turns off.
Theft Alarm LED
The Theft Alarm LED receives battery voltage at alltimes. It is grounded by the Theft Alarm Unit (Z163)to indicate the following conditions:
Slow Flash = Immobilised or Immobilised andarmed
Rapid Flash = Perimetrically and Volumetricallyarmed
Intermittent Rapid Flash = Perimetrically armed
No Flash for 10 Seconds = Mislock
Continuous = Driver’s door open (or ignition on)and Immobilised
Transmission/Transfer Box Oil Temperature
Warning Light
The transmission/transfer box oil temperaturewarning light is grounded by the AutomaticTransmission Oil Temperature Switch (X108) whenthe temperature of the transmission fluid exceeds130°C (266°F). The warning light is also groundedby the Transfer Box Oil Temperature Switch (X174)when the temperature of the transfer box fluidexceeds 145°C (266°F).
Low Fuel Warning Indicator
When the fuel gauge sender’s resistance falls belowapproximately 25 Ohms (6 liters/1.5 US gallons), theLow Fuel Warning Indicator will illuminate to warnthe driver.
Charge Warning Light
The charge warning light receives battery voltagewith the Ignition Switch (X134) in position II. Thiswarning light is grounded by the Generator (Z106) ifthe Generator is not producing normal power outputor the Generator stops turning.
SRS Indicators
The SRS Indicators are controlled by the Air BagDiagnostic Control Module (Z151) and the SRSIndicator Control Circuit of the Instrument Cluster(Z142) to indicate SRS System faults.
WARNINGS AND INDICATORS (NAS) E3
3CIRCUIT DIAGRAM
LGG
Instruments
Z142InstrumentCluster
[13] Illumination
Z128Flasher Unit
56dF 410 A
P126Fascia Fuse Box
1 C254
LGU
Warnings andIndicators
9 4 6 3
G UW
4 C208
C207
Direction Indica-tor Lamps
W/L
RN
7 9
RN
C222
Interior Lamps
B
1
E201
C221
[13]
S253
See Ground Dis-tribution
HJ8
31 31 31
31 31 31 31 31 31 31 31
56a
WARNINGS AND INDICATORS (NAS)E3
4 CIRCUIT DIAGRAM
P126Fascia Fuse Box
15
10 A
Z142InstrumentCluster
LG
S214
2
RS
1 C222
2 C222
Instruments MALFUNCTION
INDICATOR LAMP
(CHECK ENGINE)
15 C208
F 14
Warnings andIndicators
See Fuse Details
22 C1032Z132Engine ControlModule (ECM)
C209
S2103
HJ9
15
Z163Theft Alarm Unit
11 C225
11 C1027
WARNINGS AND INDICATORS (NAS) E3
5CIRCUIT DIAGRAM
S2021
30F 1210 A
6 C209
E200
15F 1310 A
15F 1410 A
See Fuse DetailsSee Fuse Details
17 C204
HJ6
2 C226
S2054HJ5
S214
P WY
LG
15 C208
P126Fascia Fuse Box
Instruments
Warnings andIndicators
2 C222
SERVICE
REMINDER
INDICATOR
(SERVICE
ENGINE)[12]
InstrumentsS2030
PO YK
4 C2217
19
87 C2106
30 C2106B
S238
See Ground Dis-tribution
85Z126Service Re-minder Unit
87a86
See Fuse Details
A
E3-7
[1]
C221
Not used
10 C221
Not used
HJ9
HJ2
1515
HJ5
Z142InstrumentCluster
[1] Speedom-eter
[12] VehicleSpeed Out-put
WARNINGS AND INDICATORS (NAS)E3
6 CIRCUIT DIAGRAM
P126Fascia Fuse Box
Z148Multi–FunctionUnit (MFU)
5
15
10 A
Z142InstrumentCluster
LG
S214
0[1]
X149Oil PressureSwitch
[1] 0.19–0.40Bar(2.75–5.75psi)
16 C204
1 C142
6 C208
WN
P126Fascia Fuse Box
2 C222
Instruments
Warnings andIndicators
15 C208
F 14
A
C222
0[1]
X238Differential LockSwitch
[1] TransferBox in DiffLock
18 C215
BO
6 C221
1 C373
WN
3 C1027
1 C105
BU
S343
1 C374B
E201
See Ground Dis-tribution
See Fuse Details
HJ9
15
WARNINGS AND INDICATORS (NAS) E3
7CIRCUIT DIAGRAM
P126Fascia Fuse Box
15
10 A
Z142InstrumentCluster
LG
3 C222
2 C222
Instruments
15 C208
F 14
KO
P!
Warnings andIndicators
E201
S288
S271
22 C215
2 C127
[1]
0
X111Brake Fluid LevelSwitch
[1] Low
S214
B
HJ11
A
E3-5
1 C347
[1] 0
1 C127
LGKKO
See Ground Dis-tribution
See Fuse Details
X191HandbrakeSwitch
[1] HandbrakeOn
13
HJ9
B E3-11
15
WARNINGS AND INDICATORS (NAS)E3
8 CIRCUIT DIAGRAM
15F 1410 A
K103A.B.S. WarningRelay
85
E204
S2051
See Ground Dis-tribution
See Fuse Details
30 C209286
86
87a
30
C2072
C2222
S2056
S214
Anti–Lock BrakeSystem
B B
B
NK
BS
LG
26
C208427C20928587a
Instruments
Warnings andIndicators
C20815
P126Fascia Fuse Box
Z142InstrumentCluster
Z108Anti–Lock BrakeSystem ECU
C20920
E203
C2084
HJ9
15
WARNINGS AND INDICATORS (NAS) E3
9CIRCUIT DIAGRAM
15F 1410 A
S214
E200
4 C209
15 C208
See Fuse Details
HJ9LG
8 C221
P126Fascia Fuse Box
Z142InstrumentCluster
[16] Theft AlarmLED
9 C221
30F 620 A
S2061
See Fuse Details
P
8 C207
P128Satellite FuseBox 2
[16]
6 C222WR
Z163Theft Alarm Unit
RW
4 C274
11 C274
BO
S204
HJ3
See Ground Dis-tribution
S2015
C20512Z148Multi–FunctionUnit (MFU)
C2057RWC3781
X120Driver’s SeatBuckle Switch
[1] BuckledC3782B
HJ10
See Ground Dis-tribution
E200
[0][1]
10 C215
WARNINGS AND INDICATORS (NAS)E3
10 CIRCUIT DIAGRAM
X174Transfer Box OilTemperature Switch
[1] < 130C (266F)[2] > 145C (293F)
P126Fascia Fuse Box
Z142InstrumentCluster
LG
S214
8 C105
BLG
10 C207
2 C222
15 C208
1 C371
S343
Instruments
Warnings andIndicators
19 C215
S153
10 AF 14
See Fuse Details
See Ground Dis-tribution
[1]
[2]
2 C371
15
B
HJ9
15
S2023
1 C166
2 C166
HORNS E5
1CIRCUIT DIAGRAM
S2089
30F 430 A
E201
See Fuse Details
P125Engine Compart-ment Fuse Box
PN
C101
K189Horn Relay
30 C28385
PO
86 87 C283
PG
S2057
S288
See Ground Dis-tribution
1 C169
2 C169
A
E5-2
K128Left Horn
K134Right Horn
1 C168
2 C168
3085
86 87
B B
1
HJ5
E200
S2016HJ10
See Ground Dis-tribution
HORNSE5
2 CIRCUIT DIAGRAM
E5-1
PO
5 C2010
PB
6
PO
7 C201
Z119Rotary Coupler
X145Main LightingSwitch
0 [1]0 [1]
X258Horn Switches
With Cruise Con-trol
Without CruiseControl
1 C2037
PB
PB
1 C2036
1 C2038
PB0 [1]
X20014Horn Switch
1 C2037
A
7 C201X145Main LightingSwitch
S2117
Not used
PO
5 C274Z163Theft Alarm Unit
S2117
NASExcept NAS
Steering ColumnHorn Brush/SlipRing
NASExcept NAS
RADIO (EXCEPT NAS) E6
CIRCUIT OPERATION 1
CIRCUIT OPERATION
The audio system consists of a new head unit, andfor mid/high– range, a subwoofer and subwooferamplifier. For mid– and high–range, the system isalso equipped with a radio waveband switch and atune switch, a volume up and a volume down switchwhich are located on the fascia next to theinstrument cluster.
The control head is equipped with an anti–theftfeature which makes the unit inoperative oncebattery power is removed. A security code must beentered to restore power to the unit. On every levelthe system is equipped with two rear and two frontspeakers. Optional front tweeters are available forhigh line radio.
Battery voltage is provided to the control head at alltimes through the P wire. In addition to monitoringthe anti–theft feature, this input keeps the presetstation memory alive. Whenever battery power to theunit is lost, the anti–theft code must be entered andthe preset stations must be reprogrammed.
When the Radio (Z111) and the ignition are turnedon, the voltage signal through the LGO wire and thecontrol head wakes up the unit. The Radio (Z111)plays, the VF display comes on, and the control unitbuttons illuminate. The VF display is dimmed whenthe headlights or park lights are turned on. When thelights are on, voltage from fuse F8 of the FasciaFusebox (P126) is applied to the Radio (Z111)terminal 6, connector 230 signalling the Radio (Z111)to dim the display.
Side Screen Antenna
The antenna is now printed into the rear side screenon four door models. For America and Japan theelement is fitted in both rear side screens, known asdiversity antenna system. Other markets have asingle element in the right hand side screen only.Diversity reception means that if vehicle movementresults in a loss of signal due to reflections frombuildings (known as multipath distortion), the radiowill switch to the antenna receiving the strongestsignal. This results in less interference and betterstereo performance.
Antenna Amplifier
New antenna amplifiers are located behind theheadlining above the side screen antenna(s). Right
hand side fitment is an FM + AM amplifier, left handside, diversity, is an FM only amplifier.
Subwoofer
The subwoofer unit is located in the right hand sideof the luggage compartment. It amplifies frequenciesbetween 20 and 150 Hz to give an enhanced basssound.
Subwoofer Amplifier
The amplifier is fitted on top of the subwoofer unit.
RADIO (EXCEPT NAS) (LOW LINE)E6
2 CIRCUIT DIAGRAM
S2061
4
E201
30F 620 A
P
P128Satellite FuseBox 2
6
RN
See Fuse Details
Interior Lamps
C20294
See Ground Dis-tribution
C205512
UY
PY
C21213
Z111Radio
8
B
Not used
13
5 C230
Except NAS
Low Line Radio
C4375
XF 310 A
See Fuse Details
P126Fascia Fuse Box
1 C229
13 C209
1 C426
1 C468
Z178Right AntennaAmplifier
C470
C2079
Coaxial Cable
Z181Right Side Win-dow Antenna
C2307
S334
12 C277
LGO
RADIO (EXCEPT NAS) (LOW LINE) E6
3CIRCUIT DIAGRAM
+–
Z111Radio
6
BN
6
K145Right RearSpeaker
+–
K143Left RearSpeaker
5
BW
5
8
BO
7
7
BY
6
2
BU
12
1
BG
5 C212
C268
1 C428
1 C427
1 C429
1 C430
BW
B
+–
K142Left FrontSpeaker
1 C518
1 C515
4
BR
4
3
BK
3
B
+–
K144Right FrontSpeaker
1 C618
1 C615
BW
78 12 C2055
1 2 C2105
Except NAS
Low Line Radio
Not used
2 1 C232
1 2 C2102
Not used
2 1 C2110
BN BW
4 5 C2082
BR BK
RADIO (EXCEPT NAS) (MID LINE)E6
4 CIRCUIT DIAGRAM
S2061
4
E201
30F 620 A
P
P128Satellite FuseBox 2
6
RN
See Fuse Details
Interior Lamps
C20294See Ground Dis-tribution
C205512
UY
PY
C21213
Z111Radio
8B
13
5 C230
Except NAS
Mid Line RadioX
F 310 A
See Fuse Details
P126Fascia Fuse Box
1 C229
13 C209
1 C426
1 C468
Z178Right AntennaAmplifier
C470
C2079
Coaxial Cable
Z181Right Side Win-dow Antenna
C2307
S334
12 C277
LGO
A E6-8
S272
See Ground Dis-tribution
RADIO (EXCEPT NAS) (MID LINE) E6
5CIRCUIT DIAGRAM
+–
Z111Radio
6
BN
6
K145Right RearSpeaker
+–
K143Left RearSpeaker
5
BW
5
8
BO
7
7
BY
6
2
BU
12
1
BG
5 C212
C268
1 C428
1 C427
1 C429
1 C430
BW B
+–
K142Left FrontSpeaker
1 C518
1 C515
4
BR
4
3
BK
3
B
+–
K144Right FrontSpeaker
1 C618
1 C615
BW
78 12 C2055
1 2 C2105
Not used
2 1 C232
1 2 C2102
Not used
2 1 C2110
BN BW4 5 C2082
Except NASMid Line Radio
BR BK
RADIO (EXCEPT NAS) (MID LINE)E6
6 CIRCUIT DIAGRAM
0
C2060
UG
5
1
5
B B
2
C20564
C2056
RN
X233Radio TuneSwitch
RK
3
1
5
B B
2
C20574
C2057
RN
S217
E201
See Ground Dis-tribution
Interior Lamps Interior Lamps
Z111Radio
0
E201
See Ground Dis-tribution
S255HJ8
B
4
[1] [1]
Except NAS
Mid Line Radio
X234Radio WavebandSwitch
RADIO (EXCEPT NAS) (MID LINE) E6
7CIRCUIT DIAGRAM
0
C2060
NY
2
1
5
B B
2
C20584
C2058
RN
X235Radio Volume UpSwitch
U
1
1
5
B B
2
C20594
C2059
RN
X236Radio VolumeDown Switch
S277
E201
See Ground Dis-tribution
Interior Lamps Interior Lamps
Z111Radio
0[1] [1]
Except NAS
Mid Line Radio
RADIO (EXCEPT NAS) (MID LINE)E6
8 CIRCUIT DIAGRAM
F 310 A
5 C437
P126Fascia Fuse Box
See Fuse Details
1 C229
LGO
4 5
Z111Radio
9
S272
10 C260
32
6
E401
See Ground Dis-tribution
C413
+–
+–
B
C412
6
PY
AE6-4
E201
1
11 9 10 C2055
1 3 2 C212
1 3 2 C437
C412
S418
See Ground Dis-tribution
RB
SCR
Z199Subwoofer Am-plifier Shield
K146Subwoofer
Z176Subwoofer Am-plifier
Except NASMid Line Radio
X
B BW B BW
S334
RADIO (EXCEPT NAS) (HIGH LINE) E6
9CIRCUIT DIAGRAM
S2061
4
E201
30F 620 A
P
P128Satellite FuseBox 2
6
RN
See Fuse Details
Interior Lamps
C20294See Ground Dis-tribution
C205512
UY
PY
C21213
Z111Radio
8B
13
5 C230
Except NAS
High Line RadioX
F 310 A
See Fuse Details
P126Fascia Fuse Box
1 C229
13 C209
1 C426
1 C468
Z178Right AntennaAmplifier
C470
C2079
Coaxial Cable
Z181Right Side Win-dow Antenna
C2307
S334
12 C277
LGO
B E6-12
See Ground Dis-tribution
S272
2B
RADIO (EXCEPT NAS) (HIGH LINE)E6
10 CIRCUIT DIAGRAM
+–
Z111Radio
6BN
6
K145Right RearSpeaker
+–
K143Left RearSpeaker
5BW
5
8BO
7
7BY
6
2BU
12
1BG
5 C212
C268
1 C428
1 C427
1 C429
1 C430
BW B
+–
K142Left FrontSpeaker
1 C518
1 C515
4BR
4
3BK
3
B
+–
K144Right FrontSpeaker
1 C618
1 C615
BW
78 12 C2055
1 2 C2105
Except NASHigh Line Radio
2 1 C232
1 2 C2102
2 1 C2110
BN BW
4 5 C2082
+–
+–
K198Right FrontTweeter
K197Left FrontTweeter
BR BK
BR B
BN BW
BR B
RADIO (EXCEPT NAS) (HIGH LINE) E6
11CIRCUIT DIAGRAM
X235Radio Volume UpSwitch
0
X234Radio Wave-band Switch 0[1] [1]
Except NAS
High Line Radio
C2057
B S217
E201
E201
0[1]
Z111Radio
Z234Radio VolumeResistor
Z236Radio WavebandResistor
X236Radio VolumeDown Switch
X233Radio TuneSwitch
3
2
5
1
4
1 2
4 5
2 1
5 4
Interior Lamps
C230
C2058
C2058
C2057 C2056
C2056
0[1]
C2097
1 2
4 5
C2059
Interior Lamps
See Ground Dis-tribution
Interior Lamps
See Ground Dis-tribution
See Ground Dis-tribution
U
RN NY
B B
RG
B BB
RN UG
NY B B
U RN
S277
S277
RN
E201
UG
Z235Radio Tune Re-sistor
RADIO (EXCEPT NAS) (HIGH LINE)E6
12 CIRCUIT DIAGRAM
F 310 A
5 C437
P126Fascia Fuse Box
See Fuse Details
1 C229
4 5
Z111Radio
6
S272
3 C2061
32
6
E401
See Ground Dis-tribution
C413
+–
+–
C412
6
PY
BE6-9
E201
1
11 9 10 C2055
1 3 2 C212
1 3 2 C437
C412
See Ground Dis-tribution
RB
SCR
Z199Subwoofer Am-plifier Shield
K146Subwoofer
Except NAS
S418
High Line Radio
B
X
Z176Subwoofer Am-plifier
LGO
B BW B BW
S334
RADIO (NAS) E7
CIRCUIT OPERATION 1
CIRCUIT OPERATION
The audio system consists of a new head unitconnected to a Radio Tune Switch, a wavebandswitch, a volume up and a volume down switchwhich are located on the fascia next to theInstrument Cluster. The system is also equipped withan amplifier, a subwoofer, a subwoofer amplifier anda CD changer which is connected to the Radio with aDIN cable. The amplifier is connected to power via aPower Amplifier Relay which is energised withignition on.
The control head is equipped with an anti–theftfeature which makes the unit inoperative oncebattery power is removed. A security code must beentered to restore power to the unit. The system isequipped with two rear and four front speakers.
Battery voltage is provided to the control head at alltimes through the P wire. In addition to monitoringthe anti–theft feature, this input keeps the presetstation memory alive. Whenever battery power to theunit is lost, the anti–theft code must be entered andthe preset stations reprogrammed.
When the Radio (Z111) and the ignition are turnedon, the voltage signal through the LGO wire and thecontrol head wakes up the unit. The Radio (Z111)plays, the VF display comes on, and the control unitbuttons illuminate. The VF display is dimmed whenthe headlights or park lights are turned on. When thelights are on, voltage from fuse F8 of the FasciaFusebox (P126) is applied to the Radio (Z111)terminal 6, Connector 230 signalling the Radio(Z111) to dim the display.
Side Screen Antenna
The antenna is now printed into the rear side screenon four door models. For America and Japan theelement is fitted in both rear side screens, known asdiversity antenna system. Other markets have asingle element in the right hand side screen only.Diversity reception means that if vehicle movementresults in a loss of signal due to reflections frombuildings (known as multipath distortion), the radiowill switch to the antenna receiving the strongestsignal. This results in less interference and betterstereo performance.
Antenna Amplifier
New antenna amplifiers are located behind theheadlining above the side screen antenna(s). Right
hand side fitment is an FM + AM amplifier, left handside, diversity, is an FM only amplifier.
Subwoofer
The subwoofer unit is located in the right hand sideof the luggage compartment. It amplifies frequenciesbetween 20 and 150 Hz to give an enhanced basssound.
Subwoofer Amplifier
The amplifier is fitted on top of the subwoofer unit.
RADIO (NAS)E7
2 CIRCUIT DIAGRAM
S2061
4 C230
E201
30F 620 A
P
P128Satellite FuseBox 2
6
RN
7
XF 310 A
P126Fascia Fuse Box
C2291
See Fuse Details
Interior Lamps
C20913
LGO
8
C205510
C20296
See Ground Dis-tribution
5
C205512
UY
C230
PY
C212
13
Z111Radio
S272
A
E7-7
E7-9B
5 C268
B
S2065
SCR
B
LGO
NAS
See Fuse Details
See Ground Dis-tribution
RADIO (NAS) E7
3CIRCUIT DIAGRAM
NAS
S334
XF 310 A
See Fuse Details
P126Fascia Fuse Box
1 C229
LGOLGO
1 C4261 C469
Z180Left Side Win-dow Antenna
1 C468
Z181Right Side Win-dow Antenna
Z178Right AntennaAmplifier
C470
C2078 C2079
Coaxial Cable Coaxial Cable
Z111Radio
1 C431Z177Left Antenna Am-plifier
C471
RADIO (NAS)E7
4 CIRCUIT DIAGRAM
0[1]
C268
UG
3
1
5
B B
2
C20564
C2056
RN
X233Radio TuneSwitch
RG
4
1
5
B B
2
C20574
C2057
RN
X234Radio WavebandSwitch
S217
E201
See Ground Dis-tribution
Interior Lamps Interior Lamps
Z111Radio
0[1]
NAS
RADIO (NAS) E7
5CIRCUIT DIAGRAM
NAS
0[1]
C268
NY
1
1
5
B B
2
C20584
C2058
RN
X235Radio Volume UpSwitch
U
2
1
5
B B
2
C20594
C2059
RN
X236Radio VolumeDown Switch
S277
E201
See Ground Dis-tribution
Interior Lamps Interior Lamps
Z111Radio
0[1]
RADIO (NAS)E7
6 CIRCUIT DIAGRAM REV: 06/97
30F 1210 A
C20417
See Fuse Details
S2021HJ6 P
C3813Z114CD Changer
See Ground Dis-tribution
C322DIN CABLE
C2080
1 C381B
E201
Z111Radio
C260
C2054Z175Radio Amplifier
P126Fascia Fuse Box
Japan
S2015HJ10
E7–10 E7–11
Up to VIN 550522& 717858
From VIN 550523& 717859
RADIO (NAS) E7
7CIRCUIT DIAGRAM
E7-2
S2033
30F 415 A
XF 310 A
S279
S238HJ5
A
PY
C205414 9
LGP
87 86 C2053
E200
See Ground Dis-tribution
Z175Radio Amplifier
K187Power AmplifierRelay
B
87
30 85
86
30 85 C2053
NK LGO
See Fuse Details
1 C229
P126Fascia Fuse Box
P128Satellite FuseBox 2
See Fuse Details
NAS
RADIO (NAS)E7
8 CIRCUIT DIAGRAM
NAS
+–
Z175Radio Amplifier
17
BN
K145Right RearSpeaker
+–
K143Left RearSpeaker
7
BW
18
BO
7
8
BY
6
15
BU
12
5
BG
5 C212
C2054
1 C428
1 C427
1 C429
1 C430
16
BR
6
BK
BW B
+–
K142Left FrontSpeaker
1 C518
1 C515
B
+–
K144Right FrontSpeaker
1 C618
1 C615
BW
1 2 C2105
2 1 C232
1 2 C2102
2 1 C2110
BN BW
4 5 C2082
+–
+–
K198Right FrontTweeter
K197Left FrontTweeter
BR BK
BR B
BN BW
BN B
RADIO (NAS) E7
9CIRCUIT DIAGRAMREV: 06/97
NAS
XF 310 A
5 C437
P126Fascia Fuse Box
See Fuse Details
1 C229
LGO
4 5
Z175Radio Amplifier
10
B
13
S2024
12 C2054
32
Z176Subwoofer Am-plifier
6
E401
See Ground Dis-tribution
C413
+–
+–
B
C412
PY
BE7-2
E205
1
1 3 2 C212
1 3 2 C437
C412
S418
Z199Subwoofer Am-plifier Shield
See Ground Dis-tribution
R B
K146Subwoofer
6
SCR
B BW B BW
S334
RADIO (NAS) (UP TO VIN 550522 & 717858)E7
10 CIRCUIT DIAGRAM REV: 06/97
Z111Radio
2 4 6 8 1 3 5 7 C260B B B B
S2064
2 3 1 5 7 C2055
11 1 2 3 4 C2054
R G Y U
Z226Radio AmplifierShield
Z175Radio Amplifier
NAS
See Ground Dis-tribution
SCR
E204
S2024
Not used
Not used
W
See Ground Dis-tribution
SCR
E200
S272Not used
Not used
W
RADIO (NAS) (FROM VIN 550523 & 717859) E7
11CIRCUIT DIAGRAMREV: 06/97
Z111Radio
6 8 1 3 5 7 C260B B
S2064
11 1 2 3 4 C2054
R G Y U
Z226Radio AmplifierShield
Z175Radio Amplifier
NAS
See Ground Dis-tribution
SCR
E204
S2024
Not used
Not used
W
See Ground Dis-tribution
SCR
E200
S272Not used
Not used
W
PREMIUM RADIO (NAS 98) E8
1CIRCUIT DIAGRAMADD: 04/98
S2061
4 C230
E201
30F 620 A
P
P128Satellite FuseBox 2
6
RN
7
XF 310 A
P126Fascia Fuse Box
C2291
See Fuse Details
Interior Lamps
C20913
LGO
8
C205510
C20296
See GroundDistribution
5
C205512
UY
C230
PY
Z111Radio
S272
A
E8-6
5 C268
B B
LGO
NAS
See Fuse Details
PREMIUM RADIO (NAS 98)E8
2 CIRCUIT DIAGRAM ADD: 04/98
NAS
S340
XF 310 A
See Fuse Details
P126Fascia Fuse Box
1 C229
LGOLGO
1 C4261 C469
Z180Left Side Win-dow Antenna
1 C468
Z181Right Side Win-dow Antenna
Z178Right AntennaAmplifier
C470
C2078 C2079
Coaxial Cable Coaxial Cable
Z111Radio
1 C431Z177Left AntennaAmplifier
C471
PREMIUM RADIO (NAS 98) E8
3CIRCUIT DIAGRAMADD: 04/98
0[1]
C268
UG
3
1
5
B B
2
C20564
C2056
RN
X233Radio TuneSwitch
RG
4
1
5
B B
2
C20574
C2057
RN
X234Radio WavebandSwitch
S217
E201
See GroundDistribution
Interior Lamps Interior Lamps
Z111Radio
0[1]
NAS
PREMIUM RADIO (NAS 98)E8
4 CIRCUIT DIAGRAM ADD: 04/98
NAS
0[1]
C268
NY
1
1
5
B B
2
C20584
C2058
RN
X235Radio VolumeUp Switch
U
2
1
5
B B
2
C20594
C2059
RN
X236Radio VolumeDown Switch
S277
E201
See GroundDistribution
Interior Lamps Interior Lamps
Z111Radio
0[1]
PREMIUM RADIO (NAS 98) E8
5CIRCUIT DIAGRAMADD: 04/98
NAS 30F 1210 A
C20417
See Fuse Details
S2021HJ6 P
C3813Z114CD Changer
See GroundDistribution
C322DIN CABLE
C2080
1 C381B
E200
P126Fascia Fuse Box
S2015HJ10
Z111Radio
2 4 6 8 1 3 7 5 C3012S PW O
S339
3 1 2 6 7 C3013Z175Radio Amplifier
B G R Y U
PREMIUM RADIO (NAS 98)E8
6 CIRCUIT DIAGRAM ADD: 04/98
E8-1
S2033
30F 415 A
XF 310 A
S279
S204HJ3
A
PY
C30131 5
LGP87 86 C2053
E200
See GroundDistribution
Z175Radio Amplifier
K187Power AmplifierRelay
B
87
30 85
86
30 85 C2053
NK LGO
See Fuse Details
1 C229
P126Fascia Fuse Box
P128Satellite FuseBox 2
See Fuse Details
NAS
C3014 12
S338
E302
B B
4 C301311
PREMIUM RADIO (NAS 98) E8
7CIRCUIT DIAGRAM
NAS
+–
Z175Radio Amplifier
15
BN
K145Right RearSpeaker
+–
K143Left RearSpeaker
5
BW
2
BO
7
10
BY
6
3
BU
12
11
BG
5 C212
C3014
1 C428
1 C427
1 C429
1 C430
16
BR
6
BK
BW B
+–
K142Left FrontSpeaker
1 C518
1 C515
B
+–
K144Right FrontSpeaker
1 C618
1 C615
BW
1 2 C2105
2 1 C232
1 2 C2102
2 1 C2110
BN BW
4 5 C2082
+–
+–
K198Right FrontTweeter
K197Left FrontTweeter
BR BK
BR B
BN BW
BN B
PREMIUM RADIO (NAS 98)E8
8 CIRCUIT DIAGRAM REV: 01/99
YKNB
NAS
4 1
Z175Radio Amplifier
+–
C416
K146Subwoofer
2 3 7 6 5 8
12 17 C30147 4 13 8 18 14
WB
13
4
1
1
2
2
3
3
14
3
13
2
6
1
15
4
C212
C439
C277
C437
KB RB OB YB OK
+–
+–
+–
FRONT WIPE/WASH F1
1CIRCUIT DIAGRAM
15F 1620 A
E200E110
C20423
S232
P126Fascia Fuse Box
NLG
87 85 C2008
K185Front Wiper Re-lay
X124Front Wipe/WashSwitch
[1] Single Wipe[2] Hi[3] Lo[4] Int
87a
87
30 86
85
30 86 C2008NSLGP
7 5 C2015
0 [1]
[2]
[3] 0[4]
[1]0
[2]
[3]0
[4]
4 3 C2015
RLG ULG
5 3 C224
M107Front WiperMotor
[1] Parked[2] Not parked
BLG
4 2
[2]
[1]
Braided Strap
See Ground Dis-tribution
S2016HJ10
1 C224B
M
87a
22 C205
Z148Multi–FunctionUnit (MFU)
HJ4
See Fuse Details
FRONT WIPE/WASHF1
2 CIRCUIT DIAGRAM
X124Front Wipe/WashSwitch
[2] Hi[3] Lo[4] Int[5] Wash
E201
C20114
B
C2058
WLG
C20116
[2][3]
[4]0
0–6 k
15F 1620 A
P126Fascia Fuse Box
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
S288
E201
See Ground Dis-tribution
C20423
GS
C20151
9
[2][3] 0
[4]
See Fuse Details
2 C2015
LGG
3 C206
B
N
HJ11
C20513
M
E200
1 C170
C170
M105Front ScreenWash Pump
See Ground Dis-tribution
2
8
S235
LGB
[5] 0
Z148Multi–FunctionUnit (MFU)
S232HJ4
5 C2029
See Ground Dis-tribution
FRONT WIPE/WASH F1
3CIRCUIT DIAGRAM
30F 220 A
M
P127Satellite FuseBox 1
K182Power Wash Re-lay
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
C207485
PU
E200
S231
86 C2074LGR
C173
C173
S238
10 C205
B
3 C206
S288
E201
M110Headlamp WashPump
B
BK
30
87
85
86
See Ground Dis-tribution
N
HJ11HJ5
See Ground Dis-tribution
87
30
2
1
Except NAS
S2025HJ5
NAS
CIRCUIT OPERATION
Washer
The Rear Screen Wash Pump (M119) motor isgrounded at all times. The motor runs when batteryvoltage is applied to the motor through the RearScreen Wash Switch (X222) when the switch isswitched to the WASH position.
Wiper
When the Rear Wiper Switch (X221) is pulled to theWIPE position, the Multifunction Unit (MFU) (Z148)applies ground to the Rear Wipe Relay (K183).Battery voltage is then applied to the Rear WiperMotor (M120) from Fuse F18.
F3
CIRCUIT OPERATION 1
REAR WIPE/WASH
REAR WIPE/WASHF3
2 CIRCUIT DIAGRAM
15F 1810 A
S2047
17 C215
0[1]
P126Fascia Fuse Box
X221Rear ScreenWipe Switch
1 2 C250
5 C250
18 C204
B
S253
E201
See Ground Dis-tribution
X222Rear ScreenWash Switch
2 1 C249
5 4 C249
Interior Lamps
B
15 16
14
OU
RN RN
See Fuse Details
S230
Z148Multi–FunctionUnit (MFU)
2 C120
1 C120
E200
See Ground Dis-tribution
C205
M119Rear ScreenWash Pump
LGS
0[1]
M
GLGGLG
HJ8
S255HJ8
4
REAR WIPE/WASH F3
3CIRCUIT DIAGRAM
K183Rear Wiper Relay
NP
85
86 C281
F 1810 A
P126Fascia Fuse Box
87
S274
C281
2
15
18 C204
GLG
P126Fascia Fuse Box
3 C206
S288
87a
See Fuse Details
See Ground Distribu-tion
C408
GLG
B
30
B
23 C205
Z148Multi–FunctionUnit (MFU)3
NG
4 C4153
5 C2774
C4891
C4158
E201
S2044
See Ground Dis-tribution
E201
S438
See Ground Distribu-tion
E401
M120Rear Wiper Motor
[1] Parked[2] Not Parked
HJ1
8687
87a 30 85
N
HJ11
HJ11
GO
[1] [2]M
2C4081
GLG
NY
REAR WIPE/WASHF3
2 CIRCUIT DIAGRAM
15F 1810 A
S2047
17 C215
0[1]
P126Fascia Fuse Box
X221Rear ScreenWipe Switch
1 2 C250
5 C250
18 C204
B
S253
E201
See Ground Dis-tribution
X222Rear ScreenWash Switch
2 1 C249
5 4 C249
Interior Lamps
B
15 16
14
OU
RN RN
See Fuse Details
S230
Z148Multi–FunctionUnit (MFU)
2 C120
1 C120
E200
See Ground Dis-tribution
C205
M119Rear ScreenWash Pump
LGS
0[1]
M
GLGGLG
HJ8
S255HJ8
4
REAR WIPE/WASH F3
3CIRCUIT DIAGRAM
K183Rear Wiper Relay
NP
85
86 C281
F 1810 A
P126Fascia Fuse Box
87
S274
C281
2
15
18 C204
GLG
P126Fascia Fuse Box
3 C206
S288
87a
See Fuse Details
See Ground Distribu-tion
C408
GLG
B
30
B
23 C205
Z148Multi–FunctionUnit (MFU)3
NG
4 C4153
5 C2774
C4891
C4158
E201
S2044
See Ground Dis-tribution
E201
S438
See Ground Distribu-tion
E401
M120Rear Wiper Motor
[1] Parked[2] Not Parked
HJ1
8687
87a 30 85
N
HJ11
HJ11
GO
[1] [2]M
2C4081
GLG
NY
HEATED FRONT SCREEN F6
1CIRCUIT DIAGRAM
15F 1510 A
P126Fascia Fuse Box
22 C204
See Fuse Details
K121Heated FrontScreen Relay
4
2
Z148Multi–FunctionUnit (MFU)
3 C206
24 C205
PY
N P126Fascia Fuse Box
E201
See Ground Dis-tribution
3086
85
C2941
S2124
LGP
30MF 1100 A
3
N
P125Engine Compart-ment Fuse Box
C294
60 A
P139Heated FrontScreen In–LineMaxi–Fuse
1 C118
OS
87
HJ13
S228HJ11
B
E102
See Ground Dis-tribution
PK
PO
1 C122
PS
1 C121
B108Heated FrontScreen
2 C122 2 C121B
B B
B
E201
F 230 A
F 130 A
P114Heated FrontScreen FuseBlock
S2074
A
F6-2
1 C2029
HEATED FRONT SCREENF6
2 CIRCUIT DIAGRAM
S216
19
0 [1]
B
4 C265
X131Heated FrontScreen Switch
[1] Depressed
Interior Lamps
RN
19 C205
1 C26525
18 C209
BP
Z148Multi–FunctionUnit (MFU)
E201
PS
See Ground Dis-tribution
Z132Engine ControlModule (ECM)
F6-1
Not used
21 C1017
10 C1027
Z132Engine ControlModule (ECM)
8 C243
PY
300TdiMFI–T16
MFI–V813 C217
PS
NAS Except NAS
A
HJ13S2126
PS
HEATED REAR SCREEN AND MIRROR DEMISTERS F8
1CIRCUIT DIAGRAM
15F 1310 A
S288
10 C208
BO
B
F8-2
P126Fascia Fuse Box
E
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
Z148Multi–FunctionUnit (MFU)
2 C205G
3 C21511
P125Engine Compart-ment Fuse Box
4 C101
OS
2 C264
30F 130 A
X132Heated RearScreen Switch
86
85
K122Heated RearScreen Relay
30
87
P126Fascia Fuse Box
3 C206
B
E201
See Ground Dis-tribution
9 C211
NP
A
F8-2
2 C206P126Fascia Fuse Box
C208
Interior Lamps
RNBG
S237C215
12
S216
4 C264
B
E201
0 [1]
18 C277
B1 C409
B141Rear Screen
B1 C435
E401
See Ground Dis-tribution
HJ11
1 5
1 C438
1 C454
1 C4532
J
C438
2 C487 See Ground Dis-tribution
HEATED REAR SCREEN AND MIRROR DEMISTERSF8
2 CIRCUIT DIAGRAM
F8-1
NP
BG
BR
B
NP
BG
BR
E200
See Ground Dis-tribution
E201
See Ground Dis-tribution
ELECTROCHROMIC REAR VIEW MIRROR G1
1CIRCUIT DIAGRAM
& (& $+
% ('%!
$&'$# *'
)%& *'
& (& $+
!'%$%$"
% * %%$%
GY GY
GN
LGO
B
B
GY
GN
B
See Fuse Details See Fuse Details
See Ground Dis-tribution
Reversing Lamps
AutomaticTransmission
Manual Trans-mission
AutomaticTransmission
Manual Trans-mission
MULTI–FUNCTION UNIT (MFU) G4
CIRCUIT OPERATION 1REV: 11/97
CIRCUIT OPERATION
Multi–Function Unit (MFU)
The multi–function unit (MFU) is mounted on therear of the passenger compartment fusebox and hasan input to operation of the following:
Heated rear screen
Heated front screen
Courtesy lights
Side and headlights
Rear fog guard lamps
Headlamp power wash
Front wipers
Rear wash/wipe
Diagnostic Procedure
1. Close all doors and the tailgate.NOTE: If the oil pressure switch goes open circuit(engine is started) during the following procedure,the MFU will exit the diagnostic mode immediately.
2. Press and hold the heated rear screen switchand switch on the ignition.
3. Release the heated rear screen switch within 2seconds and the MFU will beep to indicate that it’s indiagnostic mode 1.
4. Press the heated rear screen switch; the MFUwill beep twice. In turn, operate each of the followingswitches, heated front screen, rear fog guard lamps,side lights, headlights, front wiper and rear wiper.The MFU will beep twice each time a switch is oper-ated.
5. Pressing the heated rear screen again will causethe MFU to enter diagnostic mode 2.
6. The MFU will provide outputs to the following inorder given below:
Heated rear screen relay energised for 2 seconds
Heated front screen energised for 2 seconds
Courtesy lights energised for 2 seconds
Dim dip relay energised for 2 seconds
Rear fog guard lamp energised for 2 seconds
Headlamp power wash energised for half a second
Front wiper energised for half a second
Rear wipe/wash energised for half a second
7. The MFU will then exit the diagnostic mode.
MULTI–FUNCTION UNIT (MFU)G4
2 CIRCUIT DIAGRAM REV: 11/97
S288
15F 1410 A
0 [1]
6 C208
E201
See Ground Dis-tribution
P126Fascia Fuse Box
G
15F 1310 A
E
15F 115 A
F
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
30F 1210 A
IWarnings andIndicators
WN
16 C204WN
3 C206
B
1 C142X149Oil Pressure Switch
[1] 0.19–0.40 Bar(2.75–5.75 psi)
18 C217
NA
HJ11
0 [1]
1 C142X149Oil Pressure Switch
[1] 0.19–0.40 Bar(2.75–5.75 psi)
3 C1027
Except NAS NAS
MULTI–FUNCTION UNIT (MFU) G4
3CIRCUIT DIAGRAMREV: 11/97
0
X145Main LightingSwitch
[1] Side Lamps[2] Headlamps
1 4
U R
C201
Z148Multi–FunctionUnit (MFU)
C2044P126Fascia Fuse Box
C20517
30
[1][2]
0
S221
C2033C2061
F 210 A
F 810 A
M H
P126Fascia Fuse Box
C20421
RB
Z148Multi–FunctionUnit (MFU)
See Fuse Details
D
58 58
NAS Except NAS
NAS Except NAS
S2006S2006 HJ5
30
[1][2]
0
MULTI–FUNCTION UNIT (MFU)G4
4 CIRCUIT DIAGRAM REV: 11/97
S288
15F 115 A
0 [1]
E201
10 C204
3 C267
30F 430 A
1 C101
P126Fascia Fuse Box
P125Engine Compart-ment Fuse Box
LGP
5 C215
14 C204
L
Z128Flasher Unit
W/L
3 C206
B
See Ground Dis-tribution
1 C254
LGU
Z148Multi–FunctionUnit (MFU)
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
15 C204
LGN
A
G4-5
P126Fascia Fuse Box
X220Hazard Switch
2 C2671
B
+
–
C
Direction Indica-tor Lamps
1 C21514 C209
HJ11
See Fuse Details See Fuse Details
GO PNS2042HJ1
S2089
MULTI–FUNCTION UNIT (MFU) G4
5CIRCUIT DIAGRAMREV: 11/97
S243 20
C215
G4-4
0 [1] 0 [1]
9 7
X220Hazard Switch
LGN
6
A
2 C2009
[1] [2]
0
GR
4
GW
X116Direction Indica-tor Switch
[1] Left[2] Right
C2009
GW GR
Z213Direction Indi-cator Diode 2
Z212Direction Indica-tor Diode 1
GG
C267
C267
Direction Indica-tor Lamps
C208 3 C204 17 C208P126Fascia Fuse Box
Direction Indica-tor Lamps
3
GR
1 C211
GW
18 5
Z148Multi–FunctionUnit (MFU)
L K
S239
S241
1
MULTI–FUNCTION UNIT (MFU)G4
6 CIRCUIT DIAGRAM REV: 11/97
30F 910 A
21 C215
S2094
E201
0
[1]
P126Fascia Fuse Box
85
Except NAS
See Fuse Details
58F 810 A
P126Fascia Fuse Box
14 C208
RO
1 C2098
4 C2098UP 85
86
30 C2091
87 C2091
K231Rear Fog LampsRelay
S2123
6 C204VR
X270Front Fog LampsSwitch
86
30
87
Fog GuardLamps
RY
B
4 C205
Z148Multi–FunctionUnit (MFU)
20
S2132
11 C215
6 C205RY
0[1]
1 C263
5 C263
X154Rear Fog GuardLamps Switch
S216
B
See Ground Dis-tribution
85 C2090
K230Front Fog LampsRelay
85
MULTI–FUNCTION UNIT (MFU) G4
7CIRCUIT DIAGRAMREV: 11/97
15F 1620 A
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
X124Front Wipe/WashSwitch
[2] Hi[3] Lo[4] Int[5] Wash
Z148Multi–FunctionUnit (MFU)
C20114
B
C2058
WLG
C20116
C20423
GS
C20151
9
[2][3]
[4]0
[2][3] 0
[4]
See Fuse Details
2 C2015
LGG
0–6 k
13
8
LGB
S235Front Wipe/Wash
0[5]
C205
S232HJ4
G4 MULTI–FUNCTION UNIT (MFU)
8 CIRCUIT DIAGRAM REV: 11/97
K185Front WiperRelay
85
Z148Multi–FunctionUnit (MFU)
GS
85 C2008
86 30
GS
87
C200886 30
LGP
Front Wipe/Wash
K182Power WashRelay
85
PU
85 C2074
86 87
30
PU
30
C207486 87
LGR
Front Wipe/Wash
Front Wipe/Wash
Front Wipe/Wash
C2051022
BK
87a
NLG
NS
87a
87
MULTI–FUNCTION UNIT (MFU) G4
9CIRCUIT DIAGRAMREV: 11/97
S2047
15F 1810 A
[1]0
18 C204
K183Rear Wiper Relay
86
P126Fascia Fuse Box
GLG1 C250
4 C250
OU
X221Rear ScreenWipe Switch
[1]0
1 C249
4 C249
LGS
X222Rear ScreenWash Switch
85 30 87a
87
17 C21514
86 87
GLG GLG
Rear Wipe/Wash
87a3085
NG B
Rear Wipe/Wash
NP
Z148Multi–FunctionUnit (MFU)
C281
23 C2051615
GLG
See Fuse Details
C281
Rear Wipe/Wash
S230
MULTI–FUNCTION UNIT (MFU)G4
10 CIRCUIT DIAGRAM REV: 11/97
3 C215
Z148Multi–FunctionUnit (MFU)
G
2 C205J
10 C208
S216
0 [1]
4 C264
B
X132Heated RearScreen Switch
P126Fascia Fuse Box
C2641
BO
See Ground Dis-tribution
OS
Heated RearScreen and Mir-ror Demisters
2
86
85
30
87
9 C2113 C206
11 C208 C206
NP
Heated RearScreen and Mir-ror Demisters
B
S288
E201
See Ground Dis-tribution
HJ11
E201
P126Fascia Fuse Box
K122Heated RearScreen Relay
P126Fascia Fuse Box
MULTI–FUNCTION UNIT (MFU) G4
11CIRCUIT DIAGRAMREV: 11/97
15F 1410 A
See Fuse Details15 C208
E200
0 [1]
P126Fascia Fuse Box
8 C221Z142InstrumentCluster
Z148Multi–FunctionUnit (MFU)
7 C205RW
1 C378
X120Driver’s Seat BuckleSwitch
[1] Buckled2 C378
BS2015
See Ground Dis-tribution
HJ10
WR
10 C215
S214
LGHJ9
12 C205
9 C205
15F 1410 A
See Fuse Details15 C208
P126Fascia Fuse Box
2 C222Z142InstrumentCluster
PO
6 C209
S214
LGHJ9
7 C221
BY
1 C2114WR
1 C2114WR
Gulf States Except Gulf States
WR
Except NAS NAS
Not used
MULTI–FUNCTION UNIT (MFU)G4
12 CIRCUIT DIAGRAM REV: 11/97
4 C221
Z148Multi–FunctionUnit (MFU)
Y
14
17 C209
[1]
[12]
YK
YK
S2030HJ2
Y
1 C2062
1 C2062X241Saudi Junction Con-nector
Instruments
Z142InstrumentCluster
[1] Speedom-eter
[12] VehicleSpeed Out-put
C205
PY
24
K121Heated FrontScreen Relay
86
LPG
4 C294
85 87
30
OS
3
C2942 1
PO
Heated FrontScreen
Heated FrontScreen
MULTI–FUNCTION UNIT (MFU) G4
13CIRCUIT DIAGRAMREV: 11/97
0 [1]
See Fuse Details
30F 1210 A
P126Fascia Fuse Box
17 C204
7 C2012W
X229Key–In Switch
[1] Key In-serted
B
21 C205
6 C2012
WP
Ignition and ShiftInterlock
Z148Multi–FunctionUnit (MFU)
0 [1]
3 C2013
X229Key–In Switch
[1] Key Inserted
WP
4 C2013
S2014
S2021
S2014
Not used
Not used
3 C2013
4 C2013
WP
P
Except NAS NAS
P
P
B
HJ3
HJ3
HJ6
S2021HJ6
Except NAS NAS
W
MULTI–FUNCTION UNIT (MFU)G4
14 CIRCUIT DIAGRAM REV: 11/97
Z148Multi–FunctionUnit (MFU)
3 C205
BK
7 C105
S2068
3 C368
H LN
X175Transfer Box Po-sition Switch
2 C368
S343
E201
Ignition andShift Interlock
See Ground Dis-tribution
B
LGY
GN
NAS
MULTI–FUNCTION UNIT (MFU) G4
15REV: 11/97
18
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] Open
S309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
Theft AlarmSystem
PG
C205
S2106
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
2 C277
5
HJ4
Z163Theft Alarm Unit
116 C225
PW WP PG
5
Z277Tailgate Diode
S2013HJ1
S2135
S2013HJ1
Except NAS
Except NAS
NAS
WP
1 C205
Interior LampsPU
Up to VIN 550522& 717858
NASUp to VIN 550522& 717858
Except NASNAS Up to VIN550522 & 717858
Power Seats
MULTI–FUNCTION UNIT (MFU)G4
16 CIRCUIT DIAGRAM REV: 11/97
18
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] OpenS309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
Theft Alarm Sys-tem (NAS)
PG
C205
S2106
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
2 C277
5
HJ4
Z163Theft Alarm Unit
116 C225
PW WP PG
5
Z277Tailgate Diode
S2013HJ1
S2135
WP
1 C205
Interior LampsPU
S2136 Theft Alarm Sys-tem (NAS)
NASFrom VIN 550523& 717859
Power Seats
HEADLAMPS (EXCEPT NAS) H1
1CIRCUIT DIAGRAM
UR UW
NP
X145Main LightingSwitch
[1] Side Lamps[2] Headlamps[3] Main Beam[4] Dip Beam[5] Headlamp
FlashSwitch
6
0 [2][1]
[2]
[1]0[5]
[3][4]
1 2 5
0
[2]
[1]
NG
30F 220 A
H1-2
B
3 C101
3 C201
C2014
U
0
R
7
PO
Horns
Without CruiseControl
Horns
30MF 430 A
2 C115
H1-2
A
Fog GuardLamps
Side Lamps
Except NAS
S2092
See Fuse Details
P125Engine Compart-ment Fuse Box
Steering ColumnHorn Brush/SlipRing
S2122
See Power Dis-tribution
HEADLAMPS (EXCEPT NAS)H1
2 CIRCUIT DIAGRAM
2
B130Right Headlamp
1 C103
3 C103
F 1110 A
F 1010 A
P126Fascia Fuse Box
A
H1-1
UO
1 C203
1 11 24 C204
UB US
B116Left Headlamp
B
F 510 A
F 410 A
UK
13 C204
UR
4 C208
UW
S253See Ground Dis-tribution
1 C221
3 C207
E101
E201
B
H1-1
4 C206UW
B
E102
BSee Ground Dis-tribution
B
Z142InstrumentCluster
Except NAS
56a56d
HJ8
3 C104
1 C104
5656b
2
HEADLAMPS (NAS) H2
1CIRCUIT DIAGRAM
URUW
NP
X145Main LightingSwitch
[1] Side Lamps[2] Headlamps[3] Main Beam[4] Dip Beam[5] Headlamp
FlashSwitch
6
0 [2][1]
[2]
[1]0[5]
[3][4]
1 2 5
0
[2]
[1]
30F 220 A
H2-2
B
3 C101
3 C201
C2014
U
0
R
7
PO
Horns
Without CruiseControl
Horns
30MF 430 A
2 C115
H2-2
A
Fog GuardLamps
Side Lamps
NAS
S2092
See Fuse Details
S2026
H2-3
UW
C
P125Engine Compart-ment Fuse Box
Steering ColumnHorn Brush/SlipRing
S2122
See Power Dis-tribution
HEADLAMPS (NAS)H2
2 CIRCUIT DIAGRAM
2
B130Right Headlamp
1 C103
3 C103
F 1110 A
F 1010 A
P126Fascia Fuse Box
A
H2-1
UO
1 C203
1 11 24 C204
US
B116Left Headlamp
B
F 510 A
F 410 A
UK
13 C204
UR
4 C208
UW
S253See Ground Dis-tribution
1 C221
3 C207
E101
E201
B
H2-1
4 C206UW
BS2043
E102
B
See Ground Dis-tribution
1 C1042
H2-3
D
Z142InstrumentCluster
NAS
56a56d
56
HJ8
See Fuse Details
3 C104
B
UB
56b
HEADLAMPS (NAS) H2
3CIRCUIT DIAGRAM
30F 220 A
E200
C
H2-1
P125Engine Compart-ment Fuse Box
3 C101
NG
87a 85
15F 115 A
P126Fascia Fuse Box
10 C204GO
HJ1S2042
86 C2047
Z122Daytime RunningLamps ControlUnit
87
B
S2025HJ5
See Ground Dis-tribution
30
UW
C2047
D
H2-2
See Fuse Details
Z200Daytime RunningLamps Diode
UB
UY (Canada only)
S134 See Fuse Details
NAS
HEADLAMP LEVELLING H3
1CIRCUIT DIAGRAM
(! *( %-
"#& +"
,!)
! ) "#&
+" $!)
) "#&
+" $!)
$)'!%' #&(
C204
RO
C259
UY
C190
C190
B
C259
RN
B
C191
See Fuse Details
C208
RB RB
See Ground Dis-tribution
C191
B
See Ground Dis-tribution
See Ground Dis-tribution
[3]
[2] [1]
SIDE LAMPS H4
1CIRCUIT DIAGRAM
4 C201
See Ground Dis-tribution
S221
E200
F 810 A
R
H4-3
[1]
0 [2]
30X145Main LightingSwitch
[1] Side Lamps[2] Headlamps
3 C2031 C206
F 210 A
21
RB
P126Fascia Fuse Box
H4-2
7 C211
RO
12 C204
RO
NAS Except NAS
S2053
1 C1014
C1014
B
B162Right Front SideMarker Lamp
B167Right Front SideLamp
B
S2016HJ10
1 C110
2 C1102
58 58
See Ground Dis-tribution
E200
S2025HJ5
NAS Except NAS
NAS
B A
SIDE LAMPSH4
2 CIRCUIT DIAGRAM
B160Right Rear SideMarker Lamp
See Ground Dis-tribution
E401
S403
B
B156Right Tail Lamp
B
S402
1 C400X172Trailer AuxiliarySocket
16 C277
H4-1
RO
3 C406
4 C406
B136Right Rear LampAssembly
[2] Tail Lamp
See Ground Dis-tribution
E401
S438
[2]E401
B
4 C487
S440HJ2
See Ground Dis-tribution
1 C444
2 C444
1 C446
2 C446
Right Rear SideLamps
A
SIDE LAMPS H4
3CIRCUIT DIAGRAM
NAS
E200
S2006
B166Left Front SideLamp
B
H4-1
RBNAS Except NAS
See Fuse Details
S2025HJ5
4 C204P126Fascia Fuse Box
See Ground Dis-tribution
D
2 C211 Z148Multi–FunctionUnit (MFU)
1 C109B161Left Front SideMarker Lamp
1 C1013
2 C1013
C
H4-4
S2006HJ5
E201
HJ11See Ground Dis-tribution
2 C109
B B
S288
RB
NAS Except NAS
SIDE LAMPSH4
4 CIRCUIT DIAGRAM
See Ground Dis-tribution
E400
C443
B
B159Left Rear SideMarker Lamp
B155Left Tail Lamp
B
S401
E401
7 C400
H4-3C
See Ground Dis-tribution
X172Trailer AuxiliarySocket
Left Rear SideLamps
1 C402
B123Number PlateLamps
1 C404See Ground Dis-tribution
E401
S420
See Fuse Details
1 C441
2 C4412
3 C403
4 C403
[2]
See Ground Dis-tribution
E400
B
S401
19 C277
RB
HJ12
5 C487
C4431
B121Left Rear LampAssembly
[2] Tail Lamp
2 C415
STOP LAMPS H5
1CIRCUIT DIAGRAM
10 C204
1 C2063
2 C2063
1 C2003
1 C2004
5 C284
25 C2084
2 C344
R
Z121Cruise ControlECU
Z108Anti–Lock BrakeSystem ECU
Z110TransmissionRange SelectorSwitch
Z132Engine ControlModule (ECM)
26 C243
S2011HJ3
9 C277
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
A
H5-2
15F 115 A
S2042HJ1
GOSee Fuse Details
With ABS
1 C227
2 C227
X168Stop LampSwitch
[1] BrakePedal De-pressed
[2] BrakePedalFurther De-pressed
Z206Stop LampSwitch Sup-pressor
R
R
P126Fascia Fuse Box
GP
[2]0[1] [2]
0[1]
GP
Without ABS
GP
MFI–V8
300Tdi with EDC
Not used
7 C217
Except NAS
300Tdi withoutEDC
MFI–T16
With ABS Without ABS
STOP LAMPSH5
2 CIRCUIT DIAGRAM
1 C484
E401
B
1
B
GP
A
H5-1
See Ground Dis-tribution
1 C456
C482
1 C455
B103Centre MountedStop Lamp
5 C415
B
H5-3
C
H5-4
2 C400
X172Trailer AuxiliarySocket
S409
S408
HJ12
S418
STOP LAMPS H5
3CIRCUIT DIAGRAM
4 C403
E400
S401
B
6 C406
GN
3
RB
5
RY
2
GP
1
GR
B121Left Rear LampAssembly
[1] Rear FogLamp
[2] Tail Lamp[3] Reverse
Lamp[4] Stop Lamp[5] Indicator
Lamp
B
H5-2
Fog GuardLamps
Side Lamps
Reversing Lamps Direction Indica-tor Lamps
See Ground Dis-tribution
[1] [2] [3] [4] [5]
STOP LAMPSH5
4 CIRCUIT DIAGRAM
4 C406
E401
S438
B
6 C406
GN
3
RO
5
RY
2
GP
1
GW
B136Right Rear LampAssembly
[1] Rear FogLamp
[2] Tail Lamp[3] Reverse
Lamp[4] Stop Lamp[5] Indicator
Lamp
C
H5-2
Fog GuardLamps
Side Lamps
Reversing Lamps Direction Indica-tor Lamps
See Ground Dis-tribution
[1] [2] [3] [4] [5]
DIRECTION INDICATOR LAMPS H6
1CIRCUIT DIAGRAM
S288
15F 115 A
0 [1]
E201
See Fuse Details
10 C204
3 C267
30F 430 A
1 C101GO
P126Fascia Fuse Box
P125Engine Compart-ment Fuse Box
LGP
5 C215
14 C204
L
Z128Flasher Unit
W/L
3 C206
B
See Ground Dis-tribution
15 C204
LGN
Z148Multi–FunctionUnit (MFU)
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
1 C254
P126Fascia Fuse Box
X220Hazard Switch
2 C2671
B
+
–
C
A
H6-2
14 C209 1 C215
PN
HJ11
See Fuse DetailsS2089S2042
HJ1
LGU
Z142InstrumentCluster
6
S253
1 C221
HJ8
31
B
E201
See Ground Dis-tribution
C207
DIRECTION INDICATOR LAMPSH6
2 CIRCUIT DIAGRAM
S243
0 [1]
20
C215
H6-1
0 [1] 0 [1]
8 9 7
X220Hazard Switch
LGN
6LGN
4
C2675
Interior Lamps
C267RN
A
2 C2009
[1] [2]
0
B
H6-3
1GR
C
H6-3
4GW
X116Direction Indica-tor Switch
[1] Left[2] Right
C2009
GW GR
E
H6-3
D
H6-3
Z213Direction Indica-tor Diode 2
Z212Direction Indi-cator Diode 1
G
LGG
G
9
1 C221
C2074
31 31
Z142InstrumentCluster
B
S253
E201
See Ground Dis-tribution
HJ8
See Ground Dis-tributionS216
B
DIRECTION INDICATOR LAMPS H6
3CIRCUIT DIAGRAM
H6-2
P126Fascia Fuse Box
GR
3 C208
H6-2
GW
5
B C
S241 S239
1
S2020
Theft Alarm Sys-tem
S2023
E201 E200
HJ6
S2019HJ6
B153Left FrontIndicatorLamp
HJ11
S2016HJ10
B154Right FrontIndicator Lamp
2 C1009
1 C1010
2 C1010
B
See Ground Dis-tribution
B
See Ground Dis-tribution
C1009
2
B122Left RepeaterLamp
1 C124
C124 2
B137Right RepeaterLamp
1 C123
C123
H6-2
GR18
D
H6-2
GW17
E
C204
H6-4 F
H6-4 G
Z148Multi–FunctionUnit (MFU)
L K
GW
C208
B
DIRECTION INDICATOR LAMPSH6
4 CIRCUIT DIAGRAM
P126Fascia Fuse Box
H6-3F
S432
E400
11
3 C211GR
See Ground Dis-tribution
4 C403
B121Left Rear LampAssembly
[5] IndicatorLamp
1 C403
S401
4
C277
X172Trailer AuxiliarySocket
B
[5]
2 C442
B163Left Rear Indica-tor Lamp
1 C442
B
H6-3G
S405
E401
17
1GW
See Ground Dis-tribution
4 C406
B136Right Rear LampAssembly
[5] IndicatorLamp
1 C406
S438
B
[5]
2 C445
B165Right Rear Indi-cator Lamp
1 C445
C4003
E401
See Ground Dis-tribution
S402
B
REVERSING LAMPS H7
1CIRCUIT DIAGRAM
S344
15F 1410 A
20 C204See Fuse Details
P126Fascia Fuse Box
Starting andCharging
Automatic Trans-mission
Manual Trans-mission
Y B
2 5 C323
3 4 C323
GN
X167Park/NeutralPosition Switch
Starting andChargingBY
PR
ND
321 P
RN
D3
21
2 C372
0 [1]
1 C372GN
3 C105
Reverse Lamps
X172Trailer AuxiliarySocket
BG
[3]
B121Left Rear LampAssembly
[3] ReverseLamp
6 C403
See Ground Dis-tribution
4 C403
B
S401
E400
6 C406
C424
1
B136Right RearLamp Assem-bly
[3] ReverseLamp
See Ground Dis-tribution
B
4 C406
S438
E401
S433
1 C277GN
GYGY
B
GY1 C3000
1 C3001
GN
B
B110ElectrochromicRear View Mirror
3 C334[3]
X157Reverse Switch
FOG GUARD LAMPS (EXCEPT NAS) H9
1CIRCUIT DIAGRAM
30F 220 A
3 C101
B
P125Engine Compart-ment Fuse Box
2 C1024
58F 810 A
See Fuse Details
14 C208
P126Fascia Fuse Box
B184Left Front FogLamp
U
E201
S2044HJ11
See Ground Dis-tribution
1 C1024
B
2 C1025
B183Right Front FogLamp
U
E200
S204HJ3
See Ground Dis-tribution
1 C1025
S2115UP
30
87
86 C2090
E200
S238HJ5
See Ground Dis-tribution
B
K230Front Fog LampsRelay
85 C2090
0 [1]
5 C20984
2 C20981
21 C215
UP
X270Front Fog LampsSwitch
S2094
RN
Interior Lamps
RO
E201
S216See Ground Dis-tribution
B
S2092
NG
Except NAS
87
30
85
86
Z148Multi–FunctionUnit (MFU)
20 C205S2132
See Fuse Details
FOG GUARD LAMPS (NAS)H9
2 CIRCUIT DIAGRAM
30F 220 A
See Fuse Details
3 C101
P125Engine Compart-ment Fuse Box
2 C1024
56F 1110 A
See Fuse Details1 C204
P126Fascia Fuse Box
B184Left Front FogLamp
UP
E201
S2044HJ11
See Ground Dis-tribution
1 C1024
2 C1025
B183Right Front FogLamp
UP
E200
S204HJ3
See Ground Dis-tribution
1 C1025
87
30
85 C2089
E200
S2025HJ5 See Ground Dis-
tribution
B
K232Fog Lamps Relay
86 C2089
0 [1]
5 C20984
2 C20981
21 C215
UP
X270Front Fog LampsSwitch
S2043
RN
Interior Lamps
UB
E201
S216See Ground Dis-tribution
B
S134
NG3 C209
B B
NAS
30
87
86
85
S2092
U U
FOG GUARD LAMPS H9
3CIRCUIT DIAGRAM
30F 910 A
6 C204
B
P126Fascia Fuse Box
B121Left RearLamp Assem-bly
[1] Rear FogLamp
E400
S401 See Ground Dis-tribution
22 C277
S2123UR
[1]
4 C403
5 C403
B
B136Right Rear LampAssembly
[1] Rear FogLamp
E401
S438 See Ground Dis-tribution
[1]
4 C406
5 C406
S434HJ12
C4006
87
K231Rear Fog LampsRelay
30
86 C2091
X172Trailer AuxiliarySocket
30
Rear Fog Lamps
87 86
85
RYB
Z148Multi–FunctionUnit (MFU)
4 C20517
0
[1][2]
X145Main LightingSwitch
1 C201
30
U
E201
S216See Ground Dis-tribution
B
0[1]
C2634
2 C2631
X154Rear Fog GuardLamps Switch
RN
Interior Lamps
85 C2091
C2056
5
11 C2157
RY
S2131
INTERIOR LAMPS J1
1CIRCUIT DIAGRAM
E201
See Fuse Details
RB
1 C276
0 [1]
1 C275
R
1 C273
1 C272
B
S216
See Ground Dis-tribution
X231Glove BoxSwitch
B152Glove Box Lamp
1 C206
F 210 A
21 C204
S4202 C392
4 C392
X240Passenger’s RearA/C Switch
B158Passenger’s RearA/C Switch Il-lumination
B B
1 C393
1 C394
S417
E400
See Ground Dis-tribution
S221
0[1]
[2]
X145Main LightingSwitch
[1] Side Lamps[2] Headlamps4 C201
R
3 C203
F 810 A
P126Fascia Fuse Box
14 C208
2 C214
3 C214
Z143Instrument Il-lumination Rheo-stat
RO
1
S252HJ8
Except NAS NAS
RO
RN
HJ12
58
See Fuse Details
30
58
RB
E201
S255HJ8
See Ground Dis-tribution
B
RO
A
J1-2
Except NAS NAS
INTERIOR LAMPSJ1
2 CIRCUIT DIAGRAM
J1-1
S256
RO
HJ9
X130Headlamp LevelSwitch
B
RN
RN
1 C259
4 C259
See Ground Dis-tribution
E201
RN C
J1-4
RN
A
B
J1-3
RN
Z111Radio
8 C230
6 C230
RN
See Ground Dis-tribution
E201
S255
Except NAS
NAS
See Ground Dis-tribution
HJ8
X222Rear ScreenWash Switch
B5 C249
2 C249
X132Heated RearScreen Switch
B
RN
4 C264
2 C264
See Ground Dis-tributionS216
Z142InstrumentCluster
[13] Illumination
B
RN
1 C221
9 C222
[13]
S253HJ8
INTERIOR LAMPS J1
3CIRCUIT DIAGRAM
J1-2
S2075
X220Hazard Switch
B
5 C267
4 C267
B
RN
See Ground Dis-tribution
E201
S253
See Ground Dis-tribution
HJ8
X115Cruise ControlSwitch
B5 C262
2 C262
Z117Clock
2 C270
3 C270B
5 C2098
2 C2098
S216
B
X270Front FogLamps Switch
INTERIOR LAMPSJ1
4 CIRCUIT DIAGRAM
J1-2
S251HJ9
E
J1-6
C
RN
See Ground Dis-tribution
E201
S253HJ8
X221Rear ScreenWipe Switch
B5 C250
2 C250
B1 C221
7 C207
BC265
C265
[13]
See Ground Dis-tribution
S216
X234Radio WavebandSwitch
B
5 C2057
2 C2057
X233Radio TuneSwitch
B
5 C2056
2 C2056
D
J1-5
See Ground Dis-tribution
S217
S218Z142InstrumentCluster
[13] Illumination
X131Heated FrontScreen Switch
B5 C263
2 C263X154Rear FogGuard LampsSwitch
5
2
INTERIOR LAMPS J1
5CIRCUIT DIAGRAM
J1-4
S2076
D
RN
See Ground Dis-tribution
E201
S253
See Ground Dis-tribution
HJ8
X236Radio VolumeDown Switch
B
5 C2059
2 C2059
S277
X235Radio Volume UpSwitch
B
5 C2058
2 C2058
INTERIOR LAMPSJ1
6 CIRCUIT DIAGRAM
J1-4
RN
S300
E303
X151Right FrontWindow Switch
4 C338
6 C338
B
X122Left FrontWindowSwitch
4 C337
6 C337
X141Left Rear Win-dow ConsoleSwitch
4 C339
6 C339
X162Right Rear Win-dow ConsoleSwitch
4 C340
6 C340
1 C3003234
B
E
B
See Ground Dis-tribution
B
B106Fascia CigarLighter
1 C353
1 C356
B
1 C209
J
J1-11
E200
S204
See Ground Dis-tribution
HJ3
S2074HJ2
K
J1-7
NAS
F
J1-8
INTERIOR LAMPS J1
7CIRCUIT DIAGRAM
J1-6
K
RN
X164Right Seat HeatSwitch
5 C342
2 C342
X143Left Seat HeatSwitch
B
5 C341
2 C341
See Ground Dis-tribution
S337
6 C3003
E303
INTERIOR LAMPSJ1
8 CIRCUIT DIAGRAM
F
J1-6
RN
S262
X180Air Supply Selec-tor Switch
1 C2026
2 C2026
See Ground Dis-tribution
E200
S244
WB
3 C2067
2 C2073
LG
X225Front A/C Switch
3 C2025
2 C2025
WB
B140Ventilation Con-trol Panel Illumi-nation
3 C2023
4 C2023
WB
X239Main Rear A/CSwitch
4 C2024
2 C2024
WB
INTERIOR LAMPS J1
9CIRCUIT DIAGRAM
S269
30F 620 A
0 [1]
PN
G
J1-10
P128Satellite FuseBox 2
4 C212
S330
1 C300
B124Rear InteriorRoof Lamp
2 3 C300
PU B
S336
S401
See Ground Dis-tribution
E400
10 C277
1 C205Z148Multi–FunctionUnit (MFU)
S2077PU
PU
See Fuse Details
B
B B
0 [1]
B107Front InteriorRoof Lamp
1 C350
3 C350
1 C3010
B
S332
See Ground Dis-tribution
E401
1 C450
1 C449
S419
See Fuse Details
PU
B157Rear Cargo Lamp
HJ2
H
J1-10
PU
NAS
INTERIOR LAMPSJ1
10 CIRCUIT DIAGRAM
P126Fascia Fuse BoxX
F 620 A
1 C226
S2095HJ2
See Fuse Details
B186Left Vanity MirrorLamp
UO
2 C352
UO
1 C352
3 C2082
LGW
S333LGW
B
See Ground Dis-tribution
E401
S332
B187Right Vanity Mir-ror Lamp
UO
2 C351
UO
1 C351
LGW
B
0 1
0 1
30F 1210 A
See Fuse Details
G
J1-9
NAS
B104Column SwitchIllumination
PU
PS
1 C2012
PW
4 C2012
P126Fascia Fuse Box
17 C204
1 C2013
2 C2013
Not used
S2021
PU
H
J1-9
NAS
P
HJ6
P
B104Column SwitchIllumination
PU
P
2 C2013
P1 C2013
Except NAS
S2021
See Fuse DetailsP
HJ6
NAS Except NAS
P
See Fuse Details
INTERIOR LAMPS J1
11CIRCUIT DIAGRAM
See Ground Dis-tribution
B102Automatic GearSelector Illumi-nation
1 C346
GG
BB
S2016HJ10
B
E200
2 C346
See Ground Dis-tribution
B102Automatic GearSelector Illumi-nation
1 C346
GG
BB
S2025HJ10
B
E200
2 C346
15F 1810 A
P126Fascia Fuse Box
RG
See Ground Dis-tribution
S238HJ5
B
E200
K104TransmissionRange SelectorIllumination Re-lay
86 C204430
85 C204487a 87
87a 87 85
8630
NASExcept NAS
See Fuse DetailsS274HJ1
GLG
GLG
18
J1-6J
RN
58F 210 A
21 C204
RB
See Fuse Details
S2006
INTERIOR LAMPSJ1
12 CIRCUIT DIAGRAM REV: 06/97
18
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] Open
S309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
Theft Alarm Sys-tem
PG
C205
S2106
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
2 C277
5
HJ4
Z163Theft Alarm Unit
116 C225
PW WP PG
5
Z277Tailgate Diode
S2013HJ1
S2135
S2013HJ1
Except NAS
Except NASWP
NASUp to VIN 550522& 717858
NASUp to VIN 550522& 717858
Except NASNAS Up to VIN550522 & 717858
INTERIOR LAMPS J1
13REV: 06/97
18
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] OpenS309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
Theft Alarm Sys-tem (NAS)
PG
C205
S2106
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
2 C277
5
HJ4
Z163Theft Alarm Unit
116 C225
PW WP PG
5
Z277Tailgate Diode
S2013HJ1
S2135
WP
1 C205
Interior LampsPU
S2136 Theft Alarm Sys-tem (NAS)
NASFrom VIN 550523& 717859
CIGAR LIGHTER/CLOCK J2
1CIRCUIT DIAGRAM
*" ,* '-
*" " )
" !+)
)',& "*.
+)",+"'&
&+)"') %(*
C226
LGW
C353 C356
C353
B
RN
*" ,* '-
C208
C270
LG
,* .
+"$*
,* .
+"$*
PN
$'#
C270
&+)"') %(*
RN
)',& "*.
+)",+"'&
B
+$$"+ ,*
'-
,* .
+"$*
BLOWER CONTROLS K1
CIRCUIT OPERATION 1
CIRCUIT OPERATION
Front Blower
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Front Blower Motor Relay (K192).
When the Front Fan Speed Switch (X247) is turnedto position I, ground is applied to terminal 85 of theFront Blower Motor Relay (K192). The relay isenergised, applying battery voltage to terminal 2 ofthe Front Blower Motor (M101). Ground is applied tothe Front Blower Motor (M101) through all threeresistors of the Front Blower Resistor Unit (Z214).The Front Blower Motor (M101) then runs at lowspeed. When the Front Fan Speed Switch (X247) isturned to position II, the Front Blower Motor Relay(K192) remains energised. Battery voltage is stillapplied to terminal 2 of the Front Blower Motor(M101). Ground is now applied to the Front BlowerMotor (M101) through two resistors of the FrontBlower Resistor Unit (Z214) and the Front FanSpeed Switch (X247). The motor then runs at thelow–medium speed. When the Front Fan SpeedSwitch (X247) is turned to position III, the FrontBlower Motor Relay (K192) remains energised.Ground is now applied to the Front Blower Motor(M101) through one resistor of the Front BlowerResistor Unit (Z214) and the Front Fan SpeedSwitch (X247). The motor then runs at themedium–high speed. When the Front Fan SpeedSwitch (X247) is turned to position IV, the FrontBlower Motor Relay (K192) remains energised.Ground is now applied directly to the Front BlowerMotor (M101) through the Front Fan Speed Switch(X247). The motor then runs at high speed.
Fresh Air Mode
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Air Recirculation Solenoid In–Line Fuse (P138)and Air Recirculation Solenoid (K123). When the AirSupply Selector Switch is moved to the Fresh Airposition, ground is applied to the Air RecirculationSolenoid (K123). The solenoid now opens the freshair intake flap allowing fresh air to enter the vehiclecabin. When the fresh air intake flap has been fullyopened, the microswitch inside the Air RecirculationSolenoid (K123) moves to the Fresh Air positioninterrupting the ground supply. The solenoid nowstops and remains in the Fresh Air position.
Recirculated Air Mode
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Air Recirculation Solenoid In–Line Fuse (P138)and Air Recirculation Solenoid (K123). When the AirSupply Selector Switch is moved to Recirculate Airposition, ground is applied to the Air RecirculationSolenoid (K123). The solenoid now closes the freshair intake flap allowing only the air inside the vehiclecabin to circulate. When the fresh air intake flap hasbeen fully closed, the microswitch inside the AirRecirculation Solenoid (K123) moves to theRecirculate Air position interrupting the groundsupply. The solenoid now stops and remains in theRecirculate Air position.
BLOWER CONTROLSK1
CIRCUIT OPERATION2
Rear Blower
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Rear Blower Motor Relay (K193), the Rear A/CFan Speed Relay (K205) and the Rear A/C ControlRelay (K194).
When the Rear A/C System is turned on, the RearA/C Switch Amplifier provides ground to the RearA/C Control Relay (K194). The relay is energised,applying ground to the Rear A/C Fan Speed Relay(K205). The Rear A/C Fan Speed Relay (K205) thenenergises. When the Passenger’s Rear Fan SpeedSwitch (X246) is turned to position I, ground isapplied to terminal 85 of the Rear Blower MotorRelay (K193) through the closed switch contacts ofthe Rear A/C Fan Speed Relay (K205). The RearBlower Motor Relay (K193) energises, applyingbattery voltage to terminal 1 of the Rear BlowerMotor (M145).
Ground is applied to the Rear Blower Motor (M145)through all three resistors of the Rear BlowerResistor Unit (Z215). The Rear Blower Motor (M145)then runs at low speed. When the Passenger’s RearFan Speed Switch (X246) is turned to position II, theRear Blower Motor Relay (K193) remains energised.Battery voltage is still applied to terminal 1 of theRear Blower Motor (M145). Ground is now applied tothe Rear Blower Motor (M145) through two resistorsof the Rear Blower Motor Resistor Unit (Z215) andthe Passenger’s Rear Fan Speed Switch (X246).The motor then runs at the low–medium speed.When the Passenger’s Rear Fan Speed Switch(X246) is turned to position III, the Rear BlowerMotor Relay (K193) remains energised. Ground isnow applied to the Rear Blower Motor (M145)through one resistor of the Rear Blower MotorResistor Unit (Z215) and the Passenger’s Rear FanSpeed Switch (Z246).
The motor then runs at medium–high speed. Whenthe Passenger’s Rear Fan Speed Switch (X246) isturned to position IV, the Rear Blower Motor Relay(K193) remains energised. Ground is now applieddirectly to the Rear Blower Motor (M145) through thePassenger’s Rear Fan Speed Switch (X246). Themotor then runs at high speed.
BLOWER CONTROLS K1
3CIRCUIT DIAGRAM
15
F 1510 A
A
K1-4
30
25 A
S2124S2041
P126Fascia Fuse Box
P127Satellite FuseBox 1
Z211Fan Timer Diode
22 C204
LGP
85 30 C2007
NG
K127Ignition Load Re-lay
85 30
86 87
86 87
GW
B
WG
Cooling Fans
CompressorControls
E200
See Fuse DetailsSee Fuse Details
See Ground Dis-tribution
F 6
S2015HJ10
C2007
B
K1-7
9 C212
WG
7 C2073
UR
With Air Condi-tioning
With Air Condi-tioning
S227HJ4
Without AirConditioning
B
K1-7
9 C212
S227HJ4
S227HJ4
Except NAS NAS
Without AirConditioning
With Air Condi-tioning
Except NAS
With Air Condi-tioning
NAS
HJ13
BLOWER CONTROLSK1
4 CIRCUIT DIAGRAM
4
S2039
10 A
2 C2071
E200
See Ground Dis-tribution
D
C K1-5
K1-6
C2066
5
1 C2071
YB
1 C2072
3 C20722
UB RG
11 C20666
5 C20676
WB1 C2026
2 C202653
RG
S2038
10 C2067
Interior LampsLG
X180Air Supply Selec-tor Switch
[1] RecirculateInside Air
[2] Fresh Air
S263
5 C2025X225Front A/C Switch
K123Air RecirculationSolenoid
[1] Solenoid inFresh AirPosition
[2] Solenoid inRecirculateAir Position
P138Air RecirculationSolenoid In–LineFuse
Z208Air Supply Selec-tor Diode
With Air Condi-tioning only
S244
K1-3
UR
M
A
[1][2]
[1][2]
BLOWER CONTROLS K1
5CIRCUIT DIAGRAM
2 C2023
See Ground Dis-tribution
LGUR
4
1 C2023
S
4 C2067
S
10 C2073
S244
E200
WB
3
Interior Lamps
B140Ventilation Con-trol Panel Illumi-nation
Not used
C
K1-4
Not used
Not used
B
W
BLOWER CONTROLSK1
6 CIRCUIT DIAGRAM
BO
S2040
30MF 260 A
1 C114
E200
M
1 C2068
D
K1-4
5
UR
87a
87
30
4 2 3
WR
C2069
C2069
2
1
C2068
N
M101Front BlowerMotor
4 C2066
K192Front BlowerMotor Relay
S2056C2067
2 N
X225Front A/C Switch
1 C2025
C20701
C2070
C2070
2
3
G
PU
C20704
See Ground Dis-tribution
C2066 C2027
WB
1 C2022
0I II III
IV 0I II III
IV
X247Front Fan SpeedSwitch
C20222345
N PU G BO
5432
Z214Front Blower Re-sistor Unit
WB
WB
S266
C2027
123 C2066
With Air Condi-tioning only
85
86
P125Engine Compart-ment Fuse Box
17
NK
2 C298
R
BLOWER CONTROLS (WITH REAR A/C) K1
7CIRCUIT DIAGRAM
E400
K194Rear A/C ControlRelay
86
See Ground Dis-tribution
12 C448
2 C463
WLG
B
K1-3
WG
85
30
87
1
G3
6 C467Z216Rear A/C SwitchAmplifier
4 C463B
S429
S426
K205Rear A/C FanSpeed Relay
86
2 C466
85
30
87
1
3 4 C466S
S430
K204Rear A/C Illumi-nation Relay
86
2 C465
85
30
87
1
3 4 C465UW
G
K1-8
BR
S
F
K1-8
H
K1-9
I
K1-9
E
K1-10
PG
Z275Rear A/C RelayDiode
With Rear AirConditioning
WG
BLOWER CONTROLS (WITH REAR A/C)K1
8 CIRCUIT DIAGRAM
S331
E400
58F 210 A
21 C204
0
B
G
K1-7
P126Fascia Fuse Box
See Fuse Details
2 5 1 C392
X240Passenger’s RearA/C Switch
S417
4 C392
RB
S420
UW
14 15
4 C467LGW
Z216Rear A/C SwitchAmplifier
0
WB
1 5 2 C2024
X239Main Rear A/CSwitch
S244
4 C2024
See Ground Dis-tribution
3 5YL
6 C448W
B
S426
E400
See Ground Dis-tribution
Interior Lamps
LGUW
8 10 C212
YU YO
5 1 C2073
W UW
9 7 C2067
1
F
K1-7
WG
C467R
10 A
1 C462
P140Rear A/C SwitchAmplifier In–LineFuse
2 C462YG
See Fuse Details
S425
E200
30F 625 A
P127Satellite FuseBox 1
2
[1][1]
See Ground Dis-tribution
UW
HJ12
UW
With Rear AirConditioning
BLOWER CONTROLS (WITH REAR A/C) K1
9CIRCUIT DIAGRAM
E400
CompressorControls
30F 625 A
86
J
K1-10
YG
3 C457
S428
PG
4
B
2
NR
See Ground Dis-tribution
S426
1 5 C457
P127Satellite FuseBox 1
H
K1-7
S425
See Fuse Details
87
87a 8530
I
K1-7
WG
PG
K193Rear BlowerMotor Relay
With Rear AirConditioning
BLOWER CONTROLS (WITH REAR A/C)K1
10 CIRCUIT DIAGRAM
G
S427
E400
M
NR
C458
C458
1
2
M145Rear BlowerMotor
C4594
C459
3
2
C4591
See Ground Dis-tribution
C447
5 C391
0I II III
IV0I II III
IV
X246Passenger’s RearFan SpeedSwitch
C3911432
GR
16327
Z215Rear Blower Re-sistor Unit
C448
1
J
K1-9
E
K1-7
G
B
S417B
S426
See Ground Dis-tribution
N Y G BR
With Rear AirConditioning
COMPRESSOR CONTROLS K2
CIRCUIT OPERATION 1
CIRCUIT OPERATION
Compressor Control (MFI–V8)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Compressor Clutch Relay (K108) and the A/CLogic Relay (K170). When the Front Fan SpeedSwitch (X247) is turned to positions I, II, III, or IVand the Front A/C Switch (X225) is turned on,ground is provided to terminal 86 of the A/C LogicRelay (K170) through the closed contacts of the A/CDual Pressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101).
The relay is energised, applying battery voltage tothe Engine Control Module (ECM) (Z132), whichsignals the ECM that compressor operation hasbeen requested. The ECM then provides ground tothe coil of the Compressor Clutch Relay (K108). Therelay is energised, applying battery voltage to theCompressor Clutch (K107). Compressor Clutchoperation is now controlled by the status of the A/CDual Pressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101).
The Front A/C Evaporator Temperature Switch(X101) is fitted in the airflow out of the frontevaporator to sense the temperaure of the exteriorfins. Should ice begin to form due to lowtemperature, the switch will open. The A/C DualPressure Switch (X102) monitors refrigerantpressure in the high pressure line. Should pressurebecome too high or too low, the switch will open.When one or both of these switches open, theground supply to terminal 86 of the A/C Logic Relay(K170) will be interrupted. The relay de–energises,removing battery voltage from the Engine ControlModule (ECM) (Z132), which signals the ECM thatcompressor operation should be turned off. TheECM removes the ground supply to the coil of theCompressor Clutch Relay (K108). The relay thende–energises, removing battery voltage from theCompressor Clutch (K107), thereby disengaging theCompressor.
Compressor Control (MFI–T16)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Compressor Clutch Relay(K108) and the A/C Logic Relay (K170). When theFront Fan Speed Switch (X247) is turned topositions I, II, III, or IV and the Front A/C Switch(X225) is turned on, ground is provided to terminal85 of the A/C Logic Relay (K170) through the closed
contacts of the A/C Dual Pressure Switch (X102)and the Front A/C Evaporator Temperature Switch(X101).
The relay is energised, applying ground to terminal35 of the Engine Control Module (ECM) (Z132),which signals the ECM that compressor operationhas been requested. The ECM then provides groundto the terminal 86 of the Compressor Clutch Relay(K108). The relay is energised, applying batteryvoltage to the Compressor Clutch (K107).Compressor Clutch operation is now controlled bythe status of the A/C Dual Pressure Switch (X102)and the Front A/C Evaporator Temperature Switch(X101).
The Front A/C Evaporator Temperature Switch(X101) is fitted in the airflow out of the frontevaporator to sense the temperaure of the exteriorfins. Should ice begin to form due to lowtemperature, the switch will open. The A/C DualPressure Switch (X102) monitors refrigerantpressure in the high pressure line. Should pressurebecome too high or too low, the switch will open.When one or both of these switches open, theground supply to terminal 85 of the A/C Logic Relay(K170) will be interrupted. The relay de–energises,removing the ground supply from terminal 35 of theEngine Control Module (ECM) (Z132), which signalsthe ECM that compressor operation should beturned off. The ECM removes the ground supply toterminal 86 of the Compressor Clutch Relay (K108).The relay then de–energises, removing batteryvoltage from the Compressor Clutch (K107), therebydisengaging the Compressor.
Compressor Control (NAS) (SFI–V8)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Compressor Clutch Relay (K108). When theFront Fan Speed Switch (X247) is turned topositions I, II, III, or IV and the Front A/C Switch(X225) is turned on, ground is provided to terminal28 of the Engine Control Module (ECM) (Z132)through the closed contacts of the A/C DualPressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101). The signalinforms the ECM that compressor operation hasbeen requested. The ECM then provides ground tothe coil of the Compressor Clutch Relay (K108). Therelay is energised, applying battery voltage to theCompressor Clutch (K107). Compressor Clutchoperation is now controlled by the status of the A/CDual Pressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101).
COMPRESSOR CONTROLSK2
CIRCUIT OPERATION2
The Front A/C Evaporator Temperature Switch(X101) is fitted in the airflow out of the frontevaporator to sense the temperaure of the exteriorfins. Should ice begin to form due to lowtemperature, the switch will open. The A/C DualPressure Switch (X102) monitors refrigerantpressure in the high pressure line. Should pressurebecome too high or too low, the switch will open.When one or both of these switches open, theground supply to terminal 28 of the ECM will beinterrupted. This signal informs the ECM thatcompressor operation should be turned off. TheECM removes the ground supply to the coil of theCompressor Clutch Relay (K108). The relay thende–energises, removing battery voltage from theCompressor Clutch (K107), thereby disengaging theCompressor.
Compressor Control (300Tdi without EDC)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Compressor Clutch Relay (K108).
When the Front Fan Speed Switch (X247) is turnedto positions I, II, III, or IV and the Front A/C Switch(X225) is turned on, ground is provided to terminal86 of the Compressor Clutch Relay (K108) throughthe closed contacts of the A/C Dual Pressure Switch(X102), the Front A/C Evaporator TemperatureSwitch (X101), and the Compressor Clutch Cut–outSwitch (X259).
The relay is energised, applying battery voltage tothe Compressor Clutch (K107). Compressor Clutchoperation is now controlled by the status of the A/CDual Pressure Switch (X102), the Front A/CEvaporator Temperature Switch (X101), and theCompressor Clutch Cut–out Switch (X259).
The Front A/C Evaporator Temperature Switch(X101) is fitted in the airflow out of the frontevaporator to sense the temperature of the exteriorfins. Should ice begin to form due to lowtemperature, the switch will open. The A/C DualPressure Switch (X102) monitors refrigerantpressure in the high pressure line. Should pressurebecome too high or too low the switch will open.When one or more of these switches open, theground supply to terminal 86 of the CompressorClutch Relay (K108) will be interrupted. The relayde–energises, removing battery voltage from theCompressor Clutch (K107), thereby disengaging theCompressor.
Compressor Control (300Tdi with EDC)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Compressor Clutch Relay (K108). When theFront Fan Speed Switch (X247) is turned topositions I, II, III, or IV and the Front A/C Switch(X225) is turned on, ground is provided to terminal44 of the Engine Control Module (ECM) (Z132)through the closed contacts of the A/C DualPressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101). The signalinforms the ECM that compressor operation hasbeen requested. The ECM then provides ground tothe coil of the Compressor Clutch Relay (K108). Therelay is energised, applying battery voltage to theCompressor Clutch (K107). Compressor Clutchoperation is now controlled by the status of the A/CDual Pressure Switch (X102) and the Front A/CEvaporator Temperature Switch (X101).
The Front A/C Evaporator Temperature Switch(X101) is fitted in the airflow out of the frontevaporator to sense the temperature of the exteriorfins. Should ice begin to form due to lowtemperature, the switch will open. The A/C DualPressure Switch (X102) monitors refrigerantpressure in the high pressure line. Should pressurebecome too high or too low, the switch will open.When one or both of these switches open, theground supply to terminal 44 of the ECM will beinterrupted. This signal informs the ECM thatcompressor operation should be turned off. TheECM removes the ground supply to the coil of theCompressor Clutch Relay (K108). The relay thende–energises, removing battery voltage from theCompressor Clutch (K107), thereby disengaging theCompressor.
Rear A/C Refrigerant Control Valve
When front A/C has been selected and theCompressor Clutch (K107) is engaged, theCompressor Clutch Relay (K108) is energised andvoltage is applied on the BG wires to the Rear A/CRefrigerant Control Valve (K207). When rear A/C isselected a ground signal is applied to the Rear A/CSwitch Amplifier (Z216). The Rear A/C SwitchAmplifier (Z216) then applies a ground signal toenergise the Rear A/C Control Relay (K194) and theRear A/C Fan Speed Relay (K205). When thePassenger’s Rear Fan Speed Switch (X246) is inany position other than Off,
COMPRESSOR CONTROLS K2
CIRCUIT OPERATION 3
ground is applied to the Rear A/C RefrigerantControl Valve (K207) through the closed contacts ofthe Passenger’s Rear Fan Speed Switch (X246), BRwire, closed contacts of the Rear A/C Fan SpeedRelay (K205), PG wire, UB wire, Rear A/CRefrigerant Control Valve Diode (Z228), P wire,closed contacts of the Rear A/C EvaporatorTemperature Switch (X260), and the RG wire.
The Rear A/C Evaporator Temperature Switch(X260) senses the temperature of the exterior fins.Should ice begin to form due to low temperature, theswitch will open and the ground supply to the RearA/C Refrigerant Control Valve (K207) will then beinterrupted. The valve de–energises and refrigerantflow is interrupted.
The Rear A/C Refrigerant Control Valve (K207) willalso be de–energised if one or more of the followingconditions occurs:
The Front A/C Switch (X225) has been turnedOFF.
The Front Fan Speed Switch (X247) has beenturned OFF.
The Rear A/C switches have been turned OFF.
The Passenger’s Rear Fan Speed Switch (X246)has been turned OFF.
The ECM determines that compressor clutchoperation is no longer required.
Compressor Clutch (K107) operation has beendisabled by the A/C Dual Pressure Switch(X102) or the Front A/C Evaporator TemperatureSwitch (X101).
Compressor Clutch (K107) operation has beendisabled by the Compressor Clutch Cut–OutSwitch (X259) (300Tdi Without EDC Only).
The Condenser Fans Motors (M113, M121) onvehicles equipped with MFI–V8 engines operatewhen any of the following conditions occur:
1. Coolant temperature exceeds 100C (212F).
2. The air conditioning system is operating.
3. The Engine Control Module (ECM) (Z132)determines that fuel temperature exceeds70C and coolant temperature exceeds 110Cafter engine shutdown. When this occurs, thefans are turned on for approximately 10 minutesafter the engine is shut off.
Operation with High Coolant Temperature
(MFI–V8)
When the Ignition Switch (X134) is in position II,battery voltage is applied to the Ignition Load Relay(K127). The relay is energised, applying batteryvoltage to the Condenser Fan Relay (K109) and theFan Control Module (Z118). If the coolanttemperature exceeds 100C (212F), the CondenserFan Coolant Temperature Switch (X113) closes andenergises the Condenser Fan Relay (K109) byapplying ground to the relay’s coil. When the relay isenergised, voltage from fuse F3 is applied to theCondenser Fan Motors (M113, M121) through therelay’s contacts.
Fan Operation with A/C (MFI–V8)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Condenser Fan Relay (K109). When the FrontA/C Switch (X225) is turned on and the Front FanSpeed Switch (X247) is turned to positions I, II, III, orIV, ground is applied to terminal 86 of the CondenserFan Relay. The relay energises, applying batteryvoltage from fuse F3 to the Condenser Fan Motors(M113, M121).
Operation with the Engine Off (MFI–V8)
The Engine Control Module (Z132) monitors fueltemperature and coolant temperature throughsensors. When the ECM determines that fueltemperature is above 70C and coolant temperatureexceeds 110C after engine shutdown, the ECM willcommand fan operation for approximately 10
minutes. The ECM turns on the fans by momentarilygrounding the Fan Control Module (Z118) throughthe BG wire. When the timer unit is grounded, itstarts a solid state timer and begins to apply groundfrom its terminal 9 to the Condenser Fan Relay(K109) through the BP wire. With the CondenserFan Relay energised, voltage from fuse F3 is appliedto the Condenser Fan Motors (M113, M121) throughthe relay contacts.
COOLING FANSK5
CIRCUIT OPERATION2
Cooling Fan Operation (MFI–T16)
The Cooling Fan 1 (M141) or Cooling Fans (M141,M142) on vehicles equipped with MFI–T16 enginesoperate when any of the following conditions occur:
1. The A/C system is operating.
2. The Engine Control Module (ECM) determinesthat Cooling Fan Motor operation is required.
Cooling Fan Operation (MFI–T16) without A/C
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Cooling Fan Relay (K190)from fuse F3 of the Satellite Fuse Box 1 (P127).When Cooling Fan Operation is required, the EngineControl Module (ECM) (Z132) grounds terminal 85 ofthe Cooling Fan Relay (K190). The relay energises,applying battery voltage from fuse F3 of the EngineCompartment Fuse Box (P125) to the Cooling FanMotor 1 (M141). When Cooling Fan Operation is nolonger required, the ECM removes the groundsupply to the Cooling Fan Relay (K190). The Relayde–energises, removing the voltage supply to theCooling Fan Motor 1 (M141).
Cooling Fan Operation (MFI–T16) with A/C
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Condenser Fan Relay (K109). When CoolingFan operation is required, the Engine Control Module(ECM) (Z132) grounds terminal 85 of the CondenserFan Relay (K109). The relay energises, applyingbattery voltage from fuse F3 of the EngineCompartment Fuse Box (P125) to the Cooling FanMotors (M141, 142). When Cooling Fan operation isno longer required, the ECM removes the groundsupply to the Condenser Fan Relay (K109). Therelay de–energises, removing the voltage supply tothe Cooling Fans (M141, M142).
Condenser Fan Operation (NAS) (SFI–V8)
The Condenser Fan Motors (M113, M121) onvehicles equipped with SFI–V8 engines operatewhen any of the following conditions occur:
1. The A/C system is operating.
2. The Engine Control Module (ECM) determinesthat Condenser Fan Motor operation is required.
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Condenser Fan Relay (K109). When CondenserFan operation is required, the Engine Control Module(ECM) (Z132) grounds terminal 85 of the CondenserFan Relay (K109). The relay energises, applyingbattery voltage from fuse F3 of the EngineCompartment Fuse Box (P125) to the CondenserFan Motors (M113, M121). When Condenser Fanoperation is no longer required, the ECM removesthe ground supply to the Condenser Fan Relay(K109). The relay de–energises, removing thevoltage supply to the Condenser Fan Motors (M113,M121).
COOLING FANS K5
CIRCUIT OPERATION 3
Condenser Fan Operation (300Tdi)
The Condenser Fan Motors (M113, M121) onvehicles equipped with diesel engines operate whenany one of the following conditions occur:
1. Coolant temperature exceeds 100C (212F).
2. The A/C is operating.
Condenser Fan with High Coolant Temperature
Operation (300Tdi)
When the Ignition Switch (X134) is in position II,battery voltage is applied to the Ignition Load Relay(K127). The relay is energised, applying batteryvoltage to the Condenser Fan Relay (K109). If thecoolant temperature exceeds 100C (212F), theCondenser Fan Coolant Temperature Switch (X113)closes and energises the Condenser Fan Relay(K109) by applying ground to the relay’s coil. Whenthe relay is energised, voltage from fuse F3 isapplied to the Condenser Fan Motors (M113, M121)through the relay’s contacts.
Fan Operation with A/C (300Tdi)
With the Ignition Switch (X134) in position II, batteryvoltage is applied to the Ignition Load Relay (K127).The relay is energised, applying battery voltage tothe Condenser Fan Relay (K109) when the FrontA/C Switch (X225) is turned on and the Front FanSpeed Switch (X247) is turned to positions I, II, III, orIV and grounding terminal 86 of the Condenser FanRelay (K109). The relay energises, applying batteryvoltage from fuse F3 to the Condenser Fan Motors(M113, M121).
Voltage for window lift and sunroof operation isprovided to the Window Lift ECU (Z147) from fusesF1 and F2. The Window Lift ECU is groundedthrough the B wire at ground E200.
Timeout Feature
Fuse F15 applies voltage to the Window Lift ECUterminal 3 when the ignition switch is on. When theignition switch is turned off, the absence of voltage atterminal 3 signals the Window Lift ECU to start thetimeout feature. When the timeout feature isactivated, the Window Lift ECU will allow window andsunroof operation for an additional 45 seconds.
For NAS vehicles only:The timeout feature will be cancelled if the driver’sdoor is opened and then closed. The Window LiftECU monitors the door’s position at terminal 9.
Front Window Operation
When a Front Window Switch is operated, the switchgrounds one of four Window Lift ECU input terminals.This signals the Window Lift ECU to apply voltageand ground to the respective window motor. If thefront window switch is held in the down position formore than 1/2 second, the express down feature isactivated. The Window Lift ECU will operate thewindow motor until it is completely lowered.
Rear Window
The Window Lift ECU terminal 4 supplies voltage tothe Rear Window Console and door switches for rearwindow operation.
When a window console switch is in the ‘DOWN’position, voltage is applied to the window motorthrough the ‘up’ switch contacts. The window motorsoperate because they are grounded through the‘down’ contacts of the window console switch. Whena switch is in the ‘UP’ position, the polarity applied tothe window motor is reversed, causing the motor torun in the opposite direction and the window to close.
Rear Window Isolation Switch (X187)
The Rear Window Isolation Switch (X187) is placedin series with the ground supply to the Rear WindowDoor Switches (X188,X189). If the isolation switch isopened, the ground supply is interrupted, preventingrear window operation using the rear door switches .
CIRCUIT OPERATION 1
POWER WINDOWS L1
POWER WINDOWSL1
2 CIRCUIT DIAGRAM REV: 06/97
30F 130 A
0
[1]See Ground Dis-tribution
PSS2124
30F 230 A
P128Satellite FuseBox 2
PN
Z147Window Lift ECU
15F 1510 A
P126Fascia Fuse Box
LGP
E200
X150Left Front DoorSwitch
[1] Open
3 C287
9 C287
B
1 C2086
22 C204
See Fuse Details
5 8 C288
6 C288
S2050
S2013 Theft Alarm Sys-tem
PG
HJ1
Up to VIN 550522& 717858
Z163Theft Alarm Unit
18 C225
5 C225
PR
PG
HJ13
S2135
Theft Alarm Sys-tem (exceptNAS)
Except NAS
Except NAS
PGZ278Window LiftDiodes
PR
PG
PW
S2136
16 C225
Z163Theft Alarm Unit
5
Theft AlarmSystem (NAS)
S2135
From VIN 550523& 717859
NASNAS
Up to VIN 550522& 717858
From VIN 550523& 717859
NASNAS
POWER WINDOWS L1
3CIRCUIT DIAGRAMREV: 04/98
' %$#' !#*
$) $'$%
KN
%$(# !&*
'%!('!$#
' %$#' !#*
$) )!'
[1] Up[2] Down
UN
SK
! ' %$#' !#*
$) $'$%
UN
SU
SUSK
SR SB
BS BR BU BK
!#$) !'
Interior Lamps
RN
! ' %$#' !#*
$) )!'
[1] Up[2] Down
Interior Lamps
RN
B B
KN
(#%$$ $#'%$"
#!'
WG
POWER WINDOWSL1
4 CIRCUIT DIAGRAM
S304
' % !#*
$) $#&$"
)!'
[1] Up[2] Down
Interior Lamps
RN
%$(# !&*
'%!('!$#
! ' % !#*
$) $#&$"
)!'
[1] Up[2] Down
Interior Lamps
RN
A
L1-5
B
L1-5
SO
WK
C
L1-5
D
L1-5
!#$) !'
SW B
B SN S
POWER WINDOWS L1
5CIRCUIT DIAGRAM
S305
0
A
L1-4B
L1-4
SW
C
L1-4D
L1-4
SGSO
SN S
X189Right Rear Win-dow Door Switch
[1] Up[2] Down
SW SO
X188Left Rear Win-dow Door Switch
[1] Up[2] Down
SO SW
M124Right Rear Win-dow Motor
SG
M116Left Rear Win-dow Motor
X187Rear WindowIsolation Switch
[1] Rear Win-dowSwitchesEnabled
B
M
M
SUNROOF L4
1CIRCUIT DIAGRAM
Z147Window Lift ECU
30F 530 A
B
D G C383
C F C383
NR
P128Satellite FuseBox 2
WG
X264Passenger’s RearSunroof Switch
[1] Open[2] Close
See Ground Dis-tribution
6 C382
3 2 C2085
0 [1]
0 [1] 0[2]
E200
B
3 C389
2 C287
1 C386
4 C386
2 C389
C383
GW GB
B
X263Rear SunroofLockout Switch
1
R Y
BS
SUNROOFL4
2 CIRCUIT DIAGRAM
S308
[1] Open[2] Close
GU
GKGRGO
0 [1] 0[2]
3 H C3837 C382C382
E200
I C383
B B
See Ground Dis-tribution
0 [1] 0[2]
[1] Open[2] Close
SUNROOF L4
3CIRCUIT DIAGRAM
" #
!"!
! "
!
[1] Tilt
W P
" !
!
OU
0[1]
3 C387
2 C38741
"
!
[1] Tilt
O U OG
0[1]
3 C388
2 C38841
S308
S307
N R Y N R Y
B B
CIRCUIT OPERATION
The locking functions on models with the Theft AlarmSystem are controlled by the Theft Alarm Unit(Z163). Refer to the Theft Alarm System (T1). Thelocking functions on models without the Theft AlarmSystem are controlled by the Left Front Door LockActuator (M114).
The four doors and the tailgate are locked orunlocked using the right front exterior key or theinterior door sill knob. The rear doors can beindependently locked or unlocked from the inside byusing the appropriate door sill knob. These can beoverridden when the lock controls in the right frontdoor are used. The left front door and the rear doorsmay be locked or unlocked in isolation from theoutside using the key or from the inside using thedoor sill knob.
Lock
When the doors are locked by the right front exteriorkey or the interior door sill knob, the internalmicroswitches in the Left Front Door Lock Actuator(M114) move to the “Lock” position. Voltage fromfuse F4 is applied to the lock actuators through the Kwires. The lock actuators are grounded at E201through the microswitch contacts and the O wires.The doors and the tailgate now lock. The solid stateload sensor/timer ensures that the motors operateonly for the time required to lock or unlock the doorsand the tailgate.
Unlock
When the doors are unlocked by the right frontexterior key or the interior door sill knob, the internalmicroswitches in the Left Front Door Lock Actuator(M114) move to the “Unlock” position. Voltage fromFuse F4 is applied to the lock actuators through theO wires. The lock actuators are grounded at E201through the microswitch contacts and the K wires.Since the polarity of the voltage is now reversed, thedoors and the tailgate unlock.
L6CENTRAL LOCKING
CIRCUIT OPERATION 1
CENTRAL LOCKINGL6
2 CIRCUIT DIAGRAM
S501
[1] Lock[2] Unlock
[2][2] [1][1]
E201
B
See Ground Dis-tribution
4 C507
30F 415 A
8 C21011213
3 C5071
KO
AL6-3
BL6-3
2
M
S2033See Fuse Details
NAS
NK
CENTRAL LOCKING L6
3CIRCUIT DIAGRAM
A L6-2 L6-2B
Not used
O
S2009
O K
2 C306
K
S315S314
3 C306
8 C277 7 C277
!
S2007
7 C415 1 C415
OK
CENTRAL LOCKINGL6
2 CIRCUIT DIAGRAM
S501
[1] Lock[2] Unlock
[2][2] [1][1]
E201
B
See Ground Dis-tribution
4 C507
30F 415 A
8 C21011213
3 C5071
KO
AL6-3
BL6-3
2
M
S2033See Fuse Details
NAS
NK
CENTRAL LOCKING L6
3CIRCUIT DIAGRAM
A L6-2 L6-2B
Not used
O
S2009
O K
2 C306
K
S315S314
3 C306
8 C277 7 C277
S2007
7 C415 1 C415
OK
POWER SEATS M1
CIRCUIT OPERATION 1
CIRCUIT OPERATION
Driver Seat
When the Ignition Switch (X134) is in position I or II,or the left front door is open, the Left Seat PowerRelay (K113) is energised. Battery voltage is thenapplied to the Left Front Seat Control Switch (X152)through the closed relay contacts and the Driver’sUnderseat Fuse Box (P108). Ground is applied tothe Left Front Seat Control Switch (X152) at alltimes. The Left Front Seat Control Switch (X152)controls 4 seat control motors via 8 switches. Wheneach switch is moved to operate its correspondingmotor, one seat switch applies ground while theother applies battery voltage to the respective seatmotor. The motor turns to adjust the seat in therequested direction.
Passenger Seat
Battery voltage is applied to the Right Front SeatControl Switch (X121) at all times. When the IgnitionSwitch (X134) is in position I or II, the Right SeatPower Relay (K131) is energised, applying ground tothe Right Front Seat Control Switch (X121). TheRight Front Seat Control Switch (X121) controls 4seat control motors via 8 switches. When eachswitch is moved to operate its corresponding motor,one seat switch applies ground while the otherapplies battery voltage to the respective seat motor.The motor turns to adjust the seat in the requesteddirection.
POWER SEATSM1
2 CIRCUIT DIAGRAM REV: 11/97
86
0[1]
30MF 360 A
S306
See Power Dis-tribution
XF 620 A
1 C115
30 C34886
85
30
87
NPNP
1 C226
See Fuse Details
87 C34885WN
PU
S2013HJ1
86
87 C358
85
87
30
30 C358
86
PU
S319
BP
S2095
LGW
B B
S320
1 C2086
85
B
M1-4
A
M1-3
Theft Alarm Sys-tem
P125Engine Compart-ment Fuse Box
BP
P126Fascia Fuse Box
K113Left Seat PowerRelay
Z222Right Seat PowerRelay Diode
Z223Left Seat PowerRelay Diode
HJ2
K131Right Seat PowerRelay
X150Left Front DoorSwitch
[1] Open
PG
E301
See Ground Dis-tributionB
Multi–FunctionUnit (MFU)
POWER SEATS M1
3CIRCUIT DIAGRAM
WN
)%-!)* ' !)0
*!+ ,*! (/
WY
WR
!"+ )('+ !+
('+)(& .%+$
[1] Forward[2] Backward[3] Front Down[4] Front Up[5] Recline[6] Raise[7] Rear Down[8] Rear Up
Y G
WLG
!+ *! (+()
G Y
WB
!+ !%#$+
)('+ (+()
G Y
WU
!+ !&%'!
(+()
G Y
WO
!+ !%#$+
!) (+()
WS WK WP
A
M1-2
WN
E301
See Ground Dis-tributionB
B
POWER SEATSM1
4 CIRCUIT DIAGRAM
SN
''$ &' $,
&'( )' %+
WO
WU
Y G
SB
( ' %(%&
G Y
SW
( " !(
&%$( %(%&
G Y
SU
( #"$
%(%&
G Y
SR
( " !(
& %(%&
SG SY SP
BP
B
M1-2
" !( &%$( (
%$(&%# *"(!
[1] Forward[2] Backward[3] Front Down[4] Front Up[5] Recline[6] Raise[7] Rear Down[8] Rear Up
HEATED SEATS M2
1CIRCUIT DIAGRAM
S2124
15F 1510 A
0
2 C341
E303
See Fuse Details
P126Fascia Fuse Box
22 C204
0
X143Left Seat HeatSwitch
X164Right Seat HeatSwitch
RN
1
5 C3414
B
6 C3003
4 C3425
1 C3422
BUK US
See Ground Dis-tribution
A
M2-2
B
M2-2
Interior Lamps Interior Lamps
RN
LGP
[1] [1]
LGP
HJ13
HEATED SEATSM2
2 CIRCUIT DIAGRAM
S2125
XF 620 A
1 C226
K135Right Seat HeatRelay
See Fuse Details
K129Left Seat HeatRelay
8630
87 85
86
87
GRB B87 85 C349 87 85 C357
86 C3573086 C34930
[2]
[1]B131Right HeatedSeat
[1] < 26C(78.8F)
[2] > 36C(96.8F)
E301
1 C307
B
2 C399
B
GR
[2] [1]B117Left Heated Seat
[1] < 26C(78.8F)
[2] > 36C(96.8F)
B
B1 C398
1 C309
B
2 C398
B
B143Left Seat Back
R2 C309
A
M2-1
B
B1 C399
B144Right Seat Back
R2 C307
P126Fascia Fuse Box
LGW UK LGW
B
M2-1
US
30
87
HJ13
3 4 5 6 C3011
See Ground Dis-tribution
B B
POWER MIRRORS M3
CIRCUIT OPERATION 1
CIRCUIT OPERATION
When the Ignition Switch (X134) is in position II,voltage is supplied to the power mirrors circuit byfuse F18.
Left/Right Movement
When a selected mirror is moved to the left by theMirror Adjustment Switch (X146), the internalcontacts move to the “Move Down or Left” and the“Move Left” positions. The Left/Right motor of theselected actuator is grounded at E200 through theSW wires and the switch contacts. Voltage is appliedto the Left/Right motor through the BP, BU wires.The mirror now moves left.
When a selected mirror is moved to the right by theMirror Adjustment Switch (X146), the internalcontacts move to the “Move Up or Right” and the“Move Right” positions. The Left/Right motor of theselected actuator is grounded at E200 through theBU, BP wires and the switch contacts. Voltage isapplied to the Left/Right motor through the SWwires. Since the polarity of the voltage to the motorhas been reversed, the mirror now moves right.
Up/Down Movement
When a selected mirror is moved down by the MirrorAdjustment Switch (X146), the internal contactsmove to the “Move Down or Left” and the “MoveDown” positions. The Up/Down motor of the selectedactuator is grounded at E200 through the SW wiresand the switch contacts. Voltage is applied to theUp/Down motor through the BK, BN wires. Themirror now moves down.
When a selected mirror is moved up by the MirrorAdjustment Switch (X146), the internal contactsmove to the “Move Up or Right” and the “Move Up”positions. The Up/Down motor of the selectedactuator is grounded at E200 through the BN, BKwires and the switch contacts. Voltage is applied tothe Up/Down motor through the SW wires. Since thepolarity of the voltage to the motor has beenreversed, the mirror now moves up.
POWER MIRRORSM3
2 CIRCUIT DIAGRAM
K U
!! .,! !1
-%',
,% .,! *0
GLG
%++*+ &.,-(!)-
/%-$
[1] Right MirrorEnabled
[2] Left Mirror En-abled
[3] Move Right[4] Move Left[5] Move Up[6] Move Down[7] Move Up or
Right[8] Move Down or
Left
!"- %++*+ -.1
-*+
[1] Left/Right[2] Up/Down
!! +*.) %,1
-+%.-%*)
BU SW BN BP
BK BU
%#$- %++*+
-.-*+
[1] Left/Right[2] Up/Down
W K UWN
BK
B
N
TRAILER AUXILIARY SOCKET P1
1CIRCUIT DIAGRAM
S402
30F 620 A
E401
See Ground Dis-tribution
PN
1 C425
P128Satellite FuseBox 2
X172Trailer AuxiliarySocket
5 C400
58F 810 A
P126Fascia Fuse Box
2
RB
7 C211
RO
C277
S440S420
1 C4007
Left Rear SideLamps
Right Rear SideLamps
B
16
P126Fascia Fuse Box
58F 210 A
21 C204
S2006See Fuse Details
S419
4 C204
19
See Fuse Details
RB
HJ12
S403See Fuse Details
HJ2
See Fuse Details
TRAILER AUXILIARY SOCKETP1
2 CIRCUIT DIAGRAM
10
P126Fascia Fuse Box
C204
C227
C227
Without ABSWith ABS
S2011
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
1
X168Stop LampSwitch
[1] Brake PedalDepressed
[2] Brake PedalFurther De-pressed
GO
2
15F 115 A
[1]
[2]0
S2042
GP
[1]
C2063
0
GO
1 C2004
C2063 1 C2003
GP
Z206Stop LampSwitch Sup-pressor
With ABS
Without ABS
GOHJ1
GP
HJ3
See Fuse Details
[2]
R
R
S409
S408
2 C400
X172Trailer AuxiliarySocket
Stop Lamps
Stop Lamps
9 C277
HJ12
1
2
TRAILER AUXILIARY SOCKET P1
3CIRCUIT DIAGRAM
30F 910 A
6 C204
P126Fascia Fuse Box
22 C277
S2123UR
S434
HJ12
C4006
87
K231Rear Fog LampsRelay
30
86 C2091
X172Trailer AuxiliarySocket
30
Rear Fog Lamps
87 86
85
RYB
Z148Multi–FunctionUnit (MFU)
4 C20517
0
[1][2]
X145Main LightingSwitch
1 C201
30
U
E201
S216See Ground Dis-tribution
B
0[1]
C2634
2 C2631
X154Rear Fog GuardLamps Switch
RN
Interior Lamps
85 C2091
C2056
5
11 C2157
RY
S2131
Fog GuardLamps
TRAILER AUXILIARY SOCKETP1
4 CIRCUIT DIAGRAM
BO
S344
15F 1410 A
See Fuse Details
P126Fascia Fuse Box
GY
Starting andCharging
Automatic Trans-mission
Manual Trans-mission
Y B
4 C323
GN
GN
X167Park/NeutralPosition Switch
Starting andChargingBY
PR
N D3
21 P
RN
D3
21
0 [1]
X157Reverse Switch
GN
3 C105
GN
1 C277
S433 Reversing Lamps
1 C424Reverse Lamps
X172Trailer AuxiliarySocket
BG
20 C204
2 5 C323
3
GY
2 C372
1 C3000GY
B
1 C3001
GN
1 C372
B
GY
TRAILER AUXILIARY SOCKET P1
5CIRCUIT DIAGRAM
S288
15F 115 A
0 [1]
E201
See Fuse Details
10 C204
3 C267
30F 430 A
1 C101GO
P126Fascia Fuse Box
P125Engine Compart-ment Fuse Box
LGP
5 C215
14 C204
L
Z128Flasher Unit
W/L
3 C206
B
See Ground Dis-tribution
15 C204
LGN
Z148Multi–FunctionUnit (MFU)
Z148Multi–FunctionUnit (MFU)
P126Fascia Fuse Box
1 C254
P126Fascia Fuse Box
X220Hazard Switch
2 C2671
B
+
–
C
A
P1-6
14 C209 1 C215
PN
HJ11
See Fuse DetailsS2089S2042HJ1
LGU
Z142InstrumentCluster
6
S253
1 C221
HJ8
31
B
E201
See Ground Dis-tribution
C207
TRAILER AUXILIARY SOCKETP1
6 CIRCUIT DIAGRAM
S243 20
C215
P1-5
0 [1] 0 [1]
9 7
X220Hazard Switch
LGN
6
A
2 C2009
[1] [2]
0
C
P1-7
1
GR
B
P1-7
4
GW
X116Direction Indica-tor Switch
[1] Left[2] Right
C2009
GW GR
Z213Direction Indica-tor Diode 2
Z212Direction Indi-cator Diode 1
GG
C20818
P126Fascia Fuse Box
Z148Multi–FunctionUnit (MFU)
C267
C267
Direction Indica-tor Lamps
S239
S241
Direction Indica-tor Lamps
1
GW
C2113
GR
L K
C20817C20435
TRAILER AUXILIARY SOCKET P1
7CIRCUIT DIAGRAM
GR
S432
GW
S405
3 C4004
Right DirectionIndicator Lamps
Left DirectionIndicator Lamps
X172Trailer AuxiliarySocket
Direction Indica-tor Lamps
17 C27711
P1-6B
P1-6C
THEFT ALARM SYSTEM (EXCEPT NAS) T1
CIRCUIT OPERATION 1
CIRCUIT OPERATION
For 1996 models a vehicle alarm system is availableas original equipment. Three different functions areintegrated into the Theft Alarm System:
1. The main function of the system is to offereasy–to–use remote locking and unlocking of thevehicle (Central Locking).
2. Anti–Theft System function.
3. Engine Immobilisation function.
NOTE: The Theft Alarm ECU (Z163) is fullyprogrammable to meet different marketrequirements; therefore some of the features listedwill vary dependent on vehicle model or territory.
ALARM COMPONENTS
1. Theft Alarm Unit (Z163)
2. Handset Transmitter
3. Passive Immobilisation Coil (Z270) (Not on allvehicles!)
4. Alarm Sensor (X213) (Not on all vehicles!)
5. Lock Actuators (M114, M122, M117, M125,M132)
6. Alarm Bonnet Switch (X212) (Not on allvehicles!)
7. Right Front Door Key Switch (X202)
8. Door Switches (X150, X118, X142, X163)
9. Rear End Door Switch (X265)
10. Direction Indicator Lamps (Hazard Lamps)
11. Battery Backed Up Alarm Sounder (Z272) (Noton all vehicles!)
12. Alarm Sounder (Z171) and Sounder Relay(K160) (Not on all vehicles!)
13. Theft Alarm LED and Engine ImmobilisedWarning Lamp (EIWL) (Included in theInstrument Cluster (Z142))
14. Engine Immobilisation Control Unit (Z171)MFI–V8 and 300 Tdi without EDC Engines only(Not on all vehicles!)
Central Locking FUNCTION
Central Locking is controlled by the Theft Alarm Unit(Z163) and may be locked by using the driver’s doorkey, sill button(s) or handset. The vehicle may beunlocked by using the handset or EKA code.
NOTE: The central door locking system will shutdown for a period of approximately 15 seconds if theTheft Alarm Unit (Z163) determines that the LockActuators could be overheating.
ANTI–THeft System Function
The alarm system offers the following forms ofprotection:
Perimetric protection against unauthorisedopening of all doors, tailgate, and bonnet.
Engine crank inhibit against unauthorised enginecrank.
Volumetric protection against intrusion into thepassenger compartment.
NOTE: Perimetric protection is also triggered by thedriver’s door sill switch being lifted and the ignitionswitch being turned on.
THEFT ALARM SYSTEM (EXCEPT NAS)T1
CIRCUIT OPERATION2
Perimetric Protection
The system is perimetrically armed whenever thevehicle is manually central door locked using thedriver’s door key. A lock request from the handsetwill volumetrically arm the theft alarm.
Volumetric Protection
Using the handset transmitter will turn on and offvolumetric protection. In volumetric mode all doors,tailgate, and bonnet are protected againstunauthorised entry, and the Ignition Switch isprotected from being switched on. In addition, thevehicle interior is protected using the Alarm Sensor(X213).
Theft Alarm Disarming
(Perimetric and Volumetric Modes)
The theft alarm can only be disarmed with thehandset (or EKA code).
NOTE: The theft alarm system cannot be disarmedusing the driver’s door key.
Partially Armed Mode
The System will enter the “partially armed” modewhenever one of the following conditions is validduring theft alarm arming:
movement takes place inside the vehicle within15 seconds of the lock signal being received
a door, tailgate, or bonnet is open.
The engine will be immobilised and cranking isinhibited. The alarm will sound if ignition is turned tostart position. The alarm will protect the following:
If any of the doors caused partial arming, thenopening the tailgate or bonnet will sound thealarm.
If the tailgate caused partial arming, then theopening of any doors or the bonnet will soundthe alarm.
If the bonnet caused partial arming, then theopening of any doors or tailgate will sound thealarm. Volumetric protection is also armed.
If two of the above cause partial arming, then thethird is still protected.
If the doors, tailgate or bonnet is subsequentlyclosed, after a 5 second delay, the system will fullyarm.
Engine Cranking
It is only possible to crank the engine when ignitionis ON and alarm disabled.
Alarm Sounder
When an intrusion is detected, the Alarm Sounder(Z171) will sound and the hazard lamps flash (whereterritorial regulations allow) for 30 seconds. Thealarm must be retriggered before the Alarm Sounderwill sound again.
Two different types of Alarm Sounders are available:
1. Normal Alarm Klaxon (Alarm Sounder (Z171))
2. Battery Backed Up Alarm Sounder (Z272)
The Battery Backed Up Alarm Sounder (Z272) is analarm sounder which contains its own internalbattery. When the Ignition is on, the internal batteryis charged via an Ignition feed. If either theconnector is removed or the wires to it are cut, thenthe sounder will sound for 3 minutes.
To disconnect the Battery Backed Up Alarm Sounder(Z272):
Turn Ignition On (Pos. II)
Turn Ignition Off
Disconnect within 15 seconds
To silence if triggered:
Connect
Disarm Alarm
Turn Ignition On (Pos. II)
THEFT ALARM SYSTEM (EXCEPT NAS) T1
CIRCUIT OPERATION 3
Inertia Switch
An inertia switch is incorporated in the Theft AlarmUnit (Z163). If ignition is on and the vehicle receivesan impact sufficient to activate the inertia switch, theunit will signal to unlock central locking actuators andflash hazard lights. Central locking will remaindisabled for a period of 0 to 5 minutes. To reset, turnignition off and then on after the time period haselapsed.
Alarm Sensor (X213)
The sensor operates by emitting an air pressurecarrier wave and receiving the wave back. Anydisturbace within the vehicle which disturbs the wavewill be detected, triggering the alarm. When thevolumetric sensor is activated, it monitors movementwithin the vehicle for 15 seconds before detectingand responding to intrusions. If the sensor detectsmovement within the vehicle, it delays arming until a15 seconds quiet period has elapsed. If continuousmovement is detected, the alarm will not armvolumetrically.
ENGINE IMMOBILISATION FUNCTION
(Not on all vehicles!)
The engine will be immobilised whenever the theftalarm is armed or the the Theft Alarm Unit (Z163)enters the Passive Immobilisation mode (regardlessof whether or not the alarm is armed). There are twomethods of Engine Immobilisation featured:
1. Electronic Engine Immobilisation (used onMFI–T16 and 300 Tdi with EDC engines)
2. Remote “Smart Spider” Immobilisation (used onMFI–V8 and 300 Tdi without EDC engines)
The vehicle may only be mobilised by using thehandset or entering the correct EKA code.
Electronic Engine Immobilisation
(MFI–T16) (300 Tdi with EDC)
The electronic engine immobilisation is controlledjointly by the engine management system’sElectronic Control Module (ECM) (Z132) and theTheft Alarm Unit (Z163).
When the Theft Alarm Unit (Z163) immobilises thevehicle, it sends a signal to the ECM. The ECM thenimmobilises the engine management system until amobilise signal is received from the Theft Alarm Unit(Z163).
Remote “Smart Spider” Immobilisation
(MFI–V8) (300 Tdi without EGR)
The Remote “Smart Spider” Immobilisation iscontrolled jointly by the Engine ImmobilisationControl Unit (Spider) (Z271) and the Theft AlarmUnit (Z163). When the Theft Alarm Unit (Z163)immobilises the vehicle, it sends a signal to theEngine Immobilisation Control Unit (Spider) (Z271).The “Spider” then interrupts the starter circuit, fuelpump circuit, and Ignition coil circuit for MFI–V8engines, or the starter circuit and the fuel pumpshutoff solenoid circuit for 300 Tdi without EGRengines. These circuits will remain interrupted untilthe “Spider” receives a mobilise signal from the TheftAlarm Unit (Z163).
Diesel Fuel Shut–off Immobilisation (DDS) (300 Tdi with EGR)
Diesel Fuel Shut–off Immobilisation is controlledjointly by the Diesel Immobilisation Unit (DDS)(Z276) and the Theft Alarm Unit (Z163). When theTheft Alarm Unit (Z163) immobilises the vehicle, itsends a signal to the Diesel Immobilisation Unit(DDS) (Z276). The Diesel Immobilisation Unit (DDS)(Z276) then interrupts it’s internal fuel shut–offsolenoid circuit. This circuit will remain interrupteduntil the Diesel Immobilisation Unit (DDS) (Z276)receives a mobilise signal from the Theft Alarm Unit(Z163).
THEFT ALARM SYSTEM (EXCEPT NAS)T1
CIRCUIT OPERATION4
Passive Immobilisation
The following conditions will passively immobilise thevehicle:
30 seconds after ignition has been turned off andthe driver’s door has been opened
5 minutes after ignition has been turned off
5 minutes after disarming the theft alarm
The vehicle can be mobilised by any of the followingmethods:
Turn the ignition on (The handset must befunctioning properly and within close proximity tothe key!)
Press unlock button on the handset (4 times ifout of synch)
Press lock button on the handset with IgnitionSwitch (X134) in position II (4 times if out ofsynch)
Enter EKA code
NOTE: The vehicle will remain immobilised byattempting to turn the ignition on with the handsetdetached from the key ring (or with an improperlyfunctioning handset)
Passive Immobilisation Coil (Z270)
A magnetic field is generated by the passiveImmobilisation Coil (Z270) contained in the steeringcolumn. This field excites a receiving coil in thehandset causing it to transmit a mobilisation signal tothe Theft Alarm Unit (Z163). If the Theft Alarm Unit(Z163) does not receive this signal from the handset,the vehicle will remain immobilised.
Vehicle Status Indication
Vehicle status is indicated by up to four devices:
1. Hazard lamps
2. Theft Alarm LED (Contained in the InstrumentCluster (Z142))
3. Engine Immobilised Warning Lamp (EIWL)(Contained in the Instrument Cluster (Z142))
4. Alarm Sounder
Hazard Lamps
When the vehicle arms in either mode, the hazardlamps will flash up to three times when the alarm isarmed and one time when disarmed.
Theft Alarm LED
Slow Flash: Immobilised or immobilised andarmed
Rapid Flash: Volumetrically armed
Intermittent Rapid Flash: Perimetrically armed
No Flash for 10 Seconds: Mislock
Continuous: Driver’s door open (or ignition on)and immobilised
NOTE: The Theft Alarm LED may also be used toindicate other conditions.
Continuous: Immobilised (Cirrus Fail), or anattempt has been made to start the vehiclewithout the handset attached to the key ring (orhandset battery needs to be replaced).
THEFT ALARM SYSTEM (EXCEPT NAS) T1
CIRCUIT OPERATION 5
Handset Transmitter Resynchronisation
The Theft Alarm Unit (Z163) will remainsynchronised with the handset unless:
The handset’s batteries have been removed
The vehicle’s battery has been disconnected
NOTE: All handsets must be resynchronised whenthe vehicle’s battery has been disconnected.
To resynchronise a handset the vehicle must be inan unlocked and disarmed state. Resynchronisationconsists of 4 presses of either the lock or unlockbutton.
Handset Low Battery Warning
When the handset batteries are low, the Theft AlarmUnit (Z163) will enter the “low battery mode”. TheTheft Alarm LED will flash to indicate “low batterymode”, and the hazard lamps will not flash when thealarm is disarmed.
Interior Lamps
The Theft Alarm Unit may be configured to performfull interior Lamp delay and soft–fade functionalities.
Power Up Mode
The alarm system always remembers the state itwas left in when power was removed. If the alarmpowers up in an alarmed state, it will enter a special“power up mode”.
Emergency Key Access (EKA)
EKA is used to disarm the theft alarm and mobilisethe vehicle in the event of a handset failure. This ispossible through a series of locks and unlocks withthe key in the driver’s door lock cylinder. With thevehicle locked and the alarm armed, turn the key therequired number of times according to the followingsequence:
1. To enter the first digit, turn the key the requirednumber of times to the unlock position.
2. To enter the second digit, turn the key therequired number of times to the lock position.
3. To enter the third digit, turn the key the requirednumber of times to the unlock position.
4. To enter the fourth digit, turn the key the requirednumber of times to the lock position.
5. Turn the key to the unlock position to unlock thedoors, disarm the alarm, and mobilise thevehicle.
NOTE: The key must be fully turned to the rest andlock/unlock position each time.
If the wrong EKA code has been entered, an audiblewarning will be heard. After 3 wrong attempts, youmust wait 30 minutes. To clear a partially enteredcode, simply hold the key in the lock position for atleast 5 seconds.
THEFT ALARM SYSTEM (EXCEPT NAS)T1
CIRCUIT OPERATION6
BUILT IN TEST PROCEDURE
The handset should be detached from the key ring toallow perimetric testing. The system willautomatically switch to volumetric testing if thehandset is in close proximity to the Ignition Switch(X134).
The built in test procedure is accessed as follows:
2. Carry out instructions 3 to 7 within 5 seconds.
3. Release bonnet switch.
4. Switch ignition on.
5. Open driver’s door.
6. Switch ignition off.
7. Switch ignition on.
If alarm is correctly accessed, the alarm sounder willsound briefly and the Theft Alarm LED and hazardlamps will flash. The following checks can then bemade:
Perimetric Testing
1. Open and close driver’s door or tailgate – TheftAlarm LED and Hazard lamps will flash.
2. Depress and release bonnet switch – TheftAlarm LED and Hazard lamps will flash.
3. Pull the driver’s door sill button up – Theft alarmLED and Hazard lamps will flash.
4. Turn driver’s door key lock cylinder – Theft AlarmLED and Hazard lamps will flash.
Volumetric Testing
1. Press the unlock button on the handset or movethe handset close to the Ignition Switch (X134) todisable perimetric testing and enable volumetrictesting.
2. Any movement within the vehicle will be detectedby the Alarm Sensor (X213) and indicated byflashing the Theft Alarm LED and hazard lamps.
3. Turn off ignition to end test procedure.
HANDSET INITIALISATION
The Theft Alarm Unit (Z163) must be programmedwhenever handsets are replaced. The serialcommunications line is used to activate the “learnmode” of the Theft Alarm Unit (Z163). Then thehandset(s) to be initialised must be made to transmittheir coded data to the Theft Alarm Unit (Z163).
NOTE: All handset(s) must be programmed duringthe same learn mode period. It is not possible to
simply add a handset to the Theft Alarm Unit (Z163)which has been programmed to other handsets.
When the “learn mode” of the Theft Alarm Unit(Z163) has been accessed, the handset(s) areprogrammed using the following procedure:
2. Press the handset unlock button a minimum of 8times.
3. If the handset has been correctly programmed,the horn will sound briefly and the hazard lampswill flash once.
4. The next handset, up to a maximum of 4, cannow be programmed using the same procedure.
NOTE: It is very important that each handset isprogrammed separately. If the Theft Alarm Unit(Z163) receives key presses from two handsets,then neither handset will be programmed.
The “learn mode” is terminated using the serialcommunications line. If the Theft Alarm Unit (Z163)would not accept reprogramming, the originalhandset(s) will still function.
T1 THEFT ALARM SYSTEM (EXCEPT NAS) (300TDI WITH EGR)
24 CIRCUIT DIAGRAM
Z276Diesel Immobi-lisation Unit(DDS)
WG
B
15F 310 A
P127Satellite FuseBox 1
7 C216
S2034
B
See Fuse Details
B
E100
See Ground Dis-tribution
S112
Z163Theft Alarm Unit
14 C225BK KB
24 C2178
Not used
17
300Tdi with EGR
15B
21
S2107
KB8 C2083
X318Data Link Con-nector (OBDII)
1 C10403
C10403
T1THEFT ALARM SYSTEM (EXCEPT NAS) (300TDI WITH EGR)
25CIRCUIT DIAGRAM
85
1
Starting andCharging
Starting andCharging
Automatic Trans-mission
Manual Trans-mission
K137Starter SolenoidRelay
Z158Starter RelayDiode
X167Park/NeutralPosition Switch
85 30 C2006
NW
86
30
87
86 87 C2006BO
BY
S2005HJ2
10 C105
11 C105BO
10 C274Z163Theft Alarm Unit
S322
5 C323B
BG4 C323
BO
RN
P
23D
NR
Starting andCharging
1
WR
Automatic Trans-mission
Manual Trans-mission
4 C216
1 C157K136Starter Solenoid
300Tdi with EGR
S115
1 C159Z135Glow Plug TimerUnit
NR
NR
WR
T1 THEFT ALARM SYSTEM (EXCEPT NAS) (300TDI WITH EDC)
26 CIRCUIT DIAGRAM
Z132Engine ControlModule (ECM)
45 C243
Z163Theft Alarm Unit
14 C225
BK B
24 C21721
Not used
300Tdi with EDC
BS
15
THEFT ALARM SYSTEM (EXCEPT NAS) (300TDI WITH EDC) T1
27CIRCUIT DIAGRAM
85
1
Starting andCharging
Starting andCharging
Automatic Trans-mission
Manual Trans-mission
K137Starter SolenoidRelay
Z158Starter RelayDiode
X167Park/NeutralPosition Switch
85 30 C2006
NW
86
30
87
86 87 C2006BO
BY
S2005HJ2
10 C105
11 C105BO
10 C274Z163Theft Alarm Unit
S322
5 C323B
BG4 C323
BO
RN
P
23D
NR
Starting andCharging
1
WR
Automatic Trans-mission
Manual Trans-mission
4 C216
1 C157K136Starter Solenoid
300Tdi with EDC
S115
1 C159Z135Glow Plug TimerUnit
NR
NR
WR
THEFT ALARM SYSTEM (NAS) T2
CIRCUIT OPERATION 1
CIRCUIT OPERATION
For 1996 models a vehicle alarm system is availableas original equipment. Three different functions areintegrated into the Theft Alarm System:
1. The main function of the system is to offer easy–to–use remote locking and unlocking of the vehi-cle (Central Locking).
2. Anti–Theft System function.
3. Engine Immobilisation function.
NOTE: The Theft Alarm ECU (Z163) is fullyprogrammable to meet different marketrequirements; therefore some of features listed willvary dependent on vehicle model or territory.
ALARM COMPONENTS
1. Theft Alarm Unit (Z163)
2. Handset Transmitter
3. Lock Actuators (M114, M122, M117, M125,M132)
4. Alarm Bonnet Switch (X212) (Not on all vehi-cles!)
5. Right Front Door Key Switch (X202)
6. Door Switches (X150, X118, X142, X163)
7. Rear End Door Switch (X265)
8. Direction Indicator Lamps (Hazard Lamps)
9. Horns (K128, K134)
10. Theft Alarm LED (Included in the InstrumentCluster (Z142))
CENTRAL LOCKING FUNCTION
Central Locking is controlled by the Theft Alarm Unit(Z163) and may be locked by using the driver’s doorkey, sill button(s) or handset. The vehicle may beunlocked by using the handset or EKA code.
NOTE: The central door locking system will shutdown for a period of approximately 15 seconds if theTheft Alarm Unit (Z163) determines that the LockActuators could be overheating.
ANTI–THEFT SYSTEM FUNCTION
The alarm system offers the following forms ofprotection:
Perimetric protection against unauthorised ope-ning of all doors, tailgate, and bonnet.
Engine crank inhibit against unauthorised enginecrank.
Electronic engine immobilisation against unau-thorised engine start.
NOTE: Perimetric protection is also triggered by thedriver’s door sill switch being lifted and the ignitionswitch being turned on.
Perimetric Protection
The system is perimetrically armed whenever thevehicle is central door locked using the driver’s doorkey or the handset.
Theft Alarm Disarming
(Perimetric Mode)
The theft alarm can be disarmed with the handset orthe driver’s door key.
THEFT ALARM SYSTEM (NAS)T2
CIRCUIT OPERATION2
PARTIALLY ARMED MODE
The system will enter the “partially armed” modewhenever one of the following conditions is validduring theft alarm arming:
a door, tailgate, or bonnet is open.
The engine will be immobilised and cranking isinhibited. The alarm will sound if ignition is turned tostart position. The alarm will protect the following:
If any of the doors caused partial arming, thenopening the tailgate or bonnet will sound thealarm.
If the tailgate caused partial arming, then theopening of any doors or the bonnet will soundthe alarm.
If the bonnet caused partial arming, then theopening of any doors or tailgate will sound thealarm. Volumetric protection is also armed.
If two of the above cause partial arming, then thethird is still protected.
If the doors, tailgate or bonnet is subsequentlyclosed, after a 5 second delay, the system will fullyarm.
ENGINE CRANKING
It is only possible to crank the engine when ignitionis on and the alarm disabled.
HORNS (K128, K134)
When an intrusion is detected the Horns (K128,K134) will sound and the hazard lamps flash (whereterritorial regulations allow) for 30 seconds . Thealarm must be retriggered before the horns (K128,K134) will sound again.
INERTIA SWITCH
An inertia switch is incorporated in the Theft AlarmUnit (Z163). If ignition is on and the vehicle receivesan impact sufficient to activate the inertia switch, theunit will signal to unlock central locking actuators andflash hazard lights. Central locking will remaindisabled for a period of 0 to 5 minutes. To reset, turnignition off and then on after the time period haselapsed.
ENGINE IMMOBILISATION FUNCTION
The engine will be immobilised whenever the theftalarm is armed.
The vehicle may only be mobilised by using thehandset or the driver’s door key.
The electronic engine immobilisation is controlledjointly by the engine management system’sElectronic Control Module (ECM) (Z132) and theTheft Alarm Unit (Z163).
When the Theft Alarm Unit (Z163) immobilises thevehicle, it sends a signal to the ECM. The ECM thenimmobilises the engine management system until amobilise signal is received from the Theft Alarm Unit(Z163).
THEFT ALARM SYSTEM (NAS) T2
CIRCUIT OPERATION 3
VEHICLE STATUS INDICATION
Vehicle status is indicated by up to three devices:
1. Hazard lamps
2. Theft Alarm LED (contained in the InstrumentCluster (Z142))
3. Horns (K128, K134)
Hazard Lamps
When the vehicle arms in either mode, the hazardlamps will flash up to three times when the alarm isarmed and one time when disarmed.
Theft Alarm LED
Slow Flash: Immobilised or immobilised and ar-med
Rapid Flash: Volumetrically armed
Intermittent Rapid Flash: Perimetrically armed
No Flash for 10 Seconds: Mislock
Continuous: Driver’s door open (or ignition on)and immobilised
NOTE: The Theft Alarm LED may also be used toindicate other conditions.
HANDSET TRANSMITTER RESYNCHRONISA-TION
The Theft Alarm Unit (Z163) will remainsynchronised with the handset unless:
The handset’s batteries have been removed
The vehicle’s battery has been disconnected
NOTE: All handsets must be resynchronised whenthe vehicle’s battery has been disconnected.
To resynchronise a handset the vehicle must be inan unlocked and disarmed state. Resynchronisationconsists of 4 presses of either the lock or unlockbutton.
HANDSET LOW BATTERY WARNING
When the handset batteries are low, the Theft AlarmUnit (Z163) will enter the “low battery mode”. TheTheft Alarm LED will flash to indicate “low batterymode”, and the hazard lamps will not flash when thealarm is disarmed.
POWER UP MODE
The alarm system always remembers the state itwas left in when power was removed. If the alarmpowers up in an alarmed state, it will enter a special”power up mode”.
BUILT IN TEST PROCEDURE
The built in test procedure is accessed as follows:
2. Carry out instructions 3 to 7 within 2 seconds.
3. Release bonnet switch.
4. Switch ignition on.
5. Open driver’s door.
6. Switch ignition off.
7. Switch ignition on.
If alarm is correctly accessed, the horns will soundbriefly and the Theft Alarm LED and hazard lampswill flash. The following checks can then be made:
THEFT ALARM SYSTEM (NAS)T2
CIRCUIT OPERATION4
Perimetric Testing
1. Open and close driver’s door or tailgate – TheftAlarm LED and Hazard lamps will flash.
2. Depress and release bonnet switch – TheftAlarm LED and Hazard lamps will flash.
3. Pull the driver’s door sill button up – Theft alarmLED and Hazard lamps will flash.
4. Turn driver’s door key lock cylinder – Theft AlarmLED and Hazard lamps will flash.
HANDSET INITIALISATION
The Theft Alarm Unit (Z163) must be programmedwhenever handsets are replaced. The serialcommunications line is used to activate the “learnmode” of the Theft Alarm Unit (Z163). Then thehandset(s) to be initialised must be made to transmittheir coded data to the Theft Alarm Unit (Z163).
NOTE: All handset(s) must be programmed duringthe same learn mode period. It is not possible tosimply add a handset to the Theft Alarm Unit (Z163)which has been programmed to other handsets.
When the “learn mode” of the Theft Alarm Unit(Z163) has been accessed, the handset(s) areprogrammed using the following procedure:
2. Press the handset unlock button a minimum of 8times.
3. If the handset has been correctly programmed,the horn will briefly sound and the hazard lampswill flash once.
4. The next handset, up to a maximum of 4, cannow be programmed using the same procedure.
NOTE: It is very important that each handset beprogrammed separately. If the Theft Alarm Unit(Z163) receives key presses from two handsets,then neither handset will be programmed.
The “learn mode” is terminated using the serialcommunications line. If the Theft Alarm Unit (Z163)would not accept reprogramming, the originalhandset(s) will still function.
THEFT ALARM SYSTEM (NAS) T2
5CIRCUIT DIAGRAMREV: 06/97
S204
30F 115 A
E200
15F 510 A
P127Satellite FuseBox 1
Z163Theft Alarm Unit
P
25
GK
10 C225
HJ3
BO
GK
30F 430 A
P125Engine Compart-ment Fuse Box
PN
8 C274
S2089
11 C274
S2017
B
1 C101
See Ground Dis-tribution
See Fuse Details
Z147Window Lift ECU
See Fuse Details
HJ4
PR
18
9 C287
KB
17 C225
8 C2083
X318Data Link Con-nector (OBDII)
Up to VIN 550522& 717858
THEFT ALARM SYSTEM (NAS)T2
6 CIRCUIT DIAGRAM
S332
Z163Theft Alarm Unit
3
3
WB
20
20
1
BN
21
C225
C277
C335
2 C335B
E401
26
WB
C225
Antenna
See Ground Dis-tribution
Shield
X213Alarm Sensor
13
SCR
THEFT ALARM SYSTEM (NAS) T2
7CIRCUIT DIAGRAM
Z163Theft Alarm Unit
7
YK
[1] [2]
M114Left Front DoorLock Actuator
[1] Lock[2] Unlock
See Ground Dis-tribution
54 C507
B
3 C507
S501
E201
Not used
6 C2101
X212Alarm BonnetSwitch
[1] Open
X201Left Front DoorKey Switch
[1] Key turned[2] Key out
See Ground Dis-tribution
See Ground Dis-tribution
8 9
3
1
C2101
C504
4 C504
S501
1 C178
2 C178
E200
B
PO
UG
B
S204
[2] [1]
0 [1]
E201 YN
HJ3
C225
THEFT ALARM SYSTEM (NAS)T2
8 CIRCUIT DIAGRAM
M114Left Front DoorLock Actuator
Z163Theft Alarm Unit
M122Right Front DoorLock Actuator
M117Left Rear DoorLock Actuator
M125Right Rear DoorLock Actuator
C2742 3O K
S2009S2007
2 C306
S314
13 C2104
13
1
C507
2
C507
12 C2101
12 C2104
2
C607
1
C607
3 C306
S3152
C3005
2
C706
1
C706
1
C3005
1
C3007
1
C806
2
C806
2
C3007
K O
K O
M132Tailgate LockActuator
2 C414
8 C277
7 C415
7 C277
1 C415
1 C414
THEFT ALARM SYSTEM (NAS) T2
9CIRCUIT DIAGRAMREV: 06/97
1 C274
E200
Z163Theft Alarm Unit
GW
S2019HJ6
1 C123B137Right RepeaterLamp
2 C123
2 C1010
1 C1010
B
S2016 See Ground Dis-tribution
B154Right Front Indi-cator Lamp
S2020HJ6
B122Left RepeaterLamp
C10092B153Left Front Indica-tor Lamp
C10091
B
S2023
E201
See Ground Dis-tribution
GR
6
B
HJ10 HJ11
C1241
C1242
B
A
T2-11
B
T2-11
S239
S241
GW GR
Direction Indica-tor Lamps
THEFT ALARM SYSTEM (NAS)T2
10 CIRCUIT DIAGRAM REV: 06/97
GW
C2043 5
GR
K L
P126Fascia Fuse Box
Z148Multi–FunctionUnit (MFU)
B165Right Rear Indi-cator Lamp
1 C211 3 C211
GW GR
S432
17 11 C277S405
3 C400
1 C403E401
S402
B2 C445
1 C4454
See Ground Dis-tribution
B121Left Rear LampAssembly
[5] IndicatorLamp
E400
S401
B4 C403
T2-10A
T2-10B
X172Trailer AuxiliarySocket
B136Right Rear LampAssembly
[5] IndicatorLamp
E401
S438
B4 C406
1 C406
See Ground Dis-tribution
1 C442B163Left Rear Indica-tor Lamp
2 C442
B
See Ground Dis-tribution
Direction Indica-tor Lamps
Direction Indica-tor Lamps
[5][5]
THEFT ALARM SYSTEM (NAS) T2
11CIRCUIT DIAGRAMREV: 06/97
S2089
30F 430 A
E201
See Fuse Details
P125Engine Compart-ment Fuse Box
PN
C101
K189Horn Relay
30 C28385
PO
86 87 C283
PG
S2057
S288
See Ground Dis-tribution
1 C169
2 C169K128Left Horn
K134Right Horn
1 C168
2 C168
3085
86 87
B B
1
HJ5
E200
S2016HJ10
See Ground Dis-tribution
5 C274Z163Theft Alarm Unit
S2117
PO
Horns
THEFT ALARM SYSTEM (NAS)T2
12 CIRCUIT DIAGRAM REV: 06/97
22 C1032Z132Engine ControlModule (ECM)
30F 620 A
P128Satellite FuseBox 2
S2061
See Fuse Details
Z163Theft Alarm Unit
15
B
C225
4
RW
4 C209
C274
PLG
Z142InstrumentCluster
[16] Theft AlarmLED
6 C222
RS
S2103
2 C222
[16]
1 C222
8 C207
15F 1410 A
P126Fascia Fuse Box
S214
15 C208
HJ9
2 C209
See Fuse Details
MALFUNCTION
INDICATOR LAMP
(CHECK ENGINE)
11 C1027
11
RS
26 C1017
3 C1026
THEFT ALARM SYSTEM (NAS) T2
13CIRCUIT DIAGRAMREV: 06/97
85
1
Starting andCharging
Starting andCharging
Automatic Trans-mission
Manual Trans-mission
K137Starter SolenoidRelay
Z158Starter RelayDiode
X167Park/Neutral Po-sition Switch
85 30 C2006
NW
86
30
87
86 87 C2006BO
BY
S2005HJ2
10 C105
11 C105
BO
10 C274Z163Theft Alarm Unit
S322
5 C323B
BG4 C323
BO
RN
P
23D
NR
Starting andCharging
1
WR
Automatic Trans-mission
Manual Trans-mission
4 C1028
K136Starter Solenoid
THEFT ALARM SYSTEM (NAS) (UP TO VIN 550522 & 717858)T2
14 CIRCUIT DIAGRAM REV: 06/97
Z163Theft Alarm Unit
5
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] Open
S309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
C225
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
5 C205
1
S2013HJ1
2 C277
PW PG
WP16
18
Z223Left Seat PowerRelay Diode
PG
HJ4
Z277Tailgate Diode
WP
S2106
THEFT ALARM SYSTEM (NAS) (FROM VIN 550523 & 717859) T2
15CIRCUIT DIAGRAMREV: 06/97
Z163Theft Alarm Unit
5
PW
S261
0
[1]
1 C3008X142Left Rear DoorSwitch
[1] Open
0
[1]
1 C2087X118Right Front DoorSwitch
[1] Open
S309
0
[1]
1 C3009X163Right Rear DoorSwitch
[1] Open
1 C306
0
[1]
1 C2086X150Left Front DoorSwitch
[1] Open
C225
0
[1]
1 C451X265Rear End DoorSwitch
[1] Open
Z148Multi–FunctionUnit (MFU)
5 C205
1
S2013HJ1
2 C277
PW PG
WP16
18
Z223Left Seat PowerRelay Diode
PG
HJ4
Z277Tailgate Diode
WP
S2106
Z147Window Lift ECU
C2879PR
Z278Window LiftDiodes
PG PW
S2135S2136
PGPW
POWER DISTRIBUTION Y1
1CIRCUIT DIAGRAM
F 130 A
A Y1-2
See Ground Dis-tribution
F 220 A
F 330 A
MF 430 A
MF 360 A
MF 260 A
MF 1100 A
B+
30
N N
N0
N
N
R
B
S113
S114
E100
5 C159
See Fuse Details
P125Engine Compart-ment Fuse Box
Z106Generator
Z135Glow Plug TimerUnit
K136Starter Solenoid
P104Battery
P119Fusible Link
Diesel
Y1-3 Y1-4 Y1-6
30 30 30 30
30
30 30
Y1-3
POWER DISTRIBUTIONY1
2 CIRCUIT DIAGRAM
MF 560 A
MF 640 A
F 430 A
F 720 A
F 615 A
F 530 A
See Fuse Details
P125Engine Compart-ment Fuse Box
AY1-1
Y1-7 Y1-9
30 30 30 30
POWER DISTRIBUTION Y1
3CIRCUIT DIAGRAM
30MF 260 A
P125Engine Compart-ment Fuse Box
K192Front BlowerMotor Relay
NK
2
1 C114
C298
1 C2068
R
87
30MF 1100 A
K121Heated FrontScreen Relay
N
1 C118
3 C294
OS
30
60 A
P139Heated FrontScreen In–LineMaxi–Fuse
POWER DISTRIBUTIONY1
4 CIRCUIT DIAGRAM
30MF 360 A
NP
1 C115
P125Engine Compart-ment Fuse Box
F 625 A
P127Satellite FuseBox 1F 1
15 A
F 220 A
F 620 A
P128Satellite FuseBox 2
F 530 A
F 415 A
F 310 A
F 230 A
F 130 A
F 1210 A
P126Fascia Fuse Box
See Fuse Details
See Fuse Details
See Fuse Details Not used
S231
S226
7 C203
1 C2034
30
30 30 30
30 30
B
Y1-5
POWER DISTRIBUTION Y1
5CIRCUIT DIAGRAM
F 130 A
30K113Left Seat PowerRelay
30 C348
87 C348
86
85
8785
86
PU
Power Seats
P108Driver’s Under-seat Fuse BoxF 2
30 A
WY WR
Power Seats
WN
F 130 A
P116Passenger’s Un-derseat Fuse BoxF 2
30 A
WO WU
Power Seats
PU
B
Y1-4
S306
NP
30
30
POWER DISTRIBUTIONY1
6 CIRCUIT DIAGRAM
F 1010 A
F 1110 A
UR
P126Fascia Fuse Box
U
NP
C201
C201
1
X145Main LightingSwitch
[1] Side Lamps[2] Headlamps[3] Main Beam[4] Dip Beam[5] Headlamp