Digital Databuses – J1939 • 2007 Spartan Chassis have multiplexed gauges. • The gauges use J1939 as the source for all of the engine and transmission information speedometer acts as master gauge: – Speedometer – Tachometer – Oil Pressure – Engine coolant temp – Voltmeter – Transmission temp • The fuel and air pressure gauges are not read from the J1939 databus.
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Digital Databuses – J1939 2007 Spartan Chassis have multiplexed gauges. The gauges use J1939 as the source for all of the engine and transmission information.
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Digital Databuses – J1939
• 2007 Spartan Chassis have multiplexed gauges.• The gauges use J1939 as the source for all of the engine and
transmission information speedometer acts as master gauge:– Speedometer– Tachometer– Oil Pressure– Engine coolant temp– Voltmeter– Transmission temp
• The fuel and air pressure gauges are not read from the J1939 databus.
– Engine speed– Coolant temp– Avg Fuel economy– Barometer– Speed– Gear– Oil psi– Fuel level– Aux air psi
– Engine hours– Boost psi– Battery volts– Air primary– Air secondary– Trans temp– Dimmer %– Engine load %– Inst Fuel economy– Brake application psi
2007 Gauge Second Line Display
• Second line display – PB set– Vehicle speed = 0– Ignition on
– Press “M” button for less than 5 seconds then release– “M” or “T” to scroll up or down– Press both “M” and “T” to select the highlighted parameter for
second line display.Trip odometer - Instant fuel econ – Avg fuel econ – Hourmeter- Ammeter
2007 Gauge Configuration
• Configuration mode– PB set– Vehicle speed = 0– Battery master on– Ignition off– Press and hold both “M” and “T” – Turn ignition on– Press “M” or “T” to scroll up or down
Self test option – Bootloader Version – Software Version – Engine Type – Trans Type – ABS Type – Trip Odo
Icons
Icons Defined
Icon LCD TEXT Description
EXHAUST SYSTEM FAILURE Exhaust system failure
CLEAN DIESEL PARTICULATE FILTER
Diesel particulate filter needs cleaning
HIGH EXHAUST SYSTEM TEMPERATURE
Exhaust system temperature is high
STOP ENGINE Stop engine
CHECK ENGINE Check engine
CHECK TRANSMISSION Check transmission
WAIT TO START
Wait to start(pre-heater)
WATER IN FUEL Water is in the fuel
BRAKE SYSTEM FAILURE
Hydraulic brake system failure
ABS FAILURE The abs has a fault
ATC
TRACTION CONTROL ACTIVE Low traction
n/a High beams are on
Icons Defined
n/a Seat belt is not fastened
n/a Park brake is set
n/a Right turn active
n/a Left turn active
RESTRICTED AIR FILTER Air filter is restricted
COOLANT LEVEL LOW Low coolant level
SRS SUPPLEMENTAL RESTRAINT
SYSTEM FAILURE
Supplemental restraints system has a fault
OK TO
PUMP n/a It is ok to pump
PUMP ENGAGED
n/a The pump is engaged HIGH IDLE
n/a High idle AUX
BRAKE ACTIVE
n/a Auxiliary braking is active
Auto Neutral Feature• Transmission shifts to neutral when the PB is set• Tachometer displays “Range Inhibit”• Shifter displays
– left segment flashes the gear you had selected – Right segment “N”
• The transmission is in neutral but does not send out a neutral signal– Starter button doesn’t work– Functions dependant on neutral signal don’t work
• Fast idle, PTO, Etc…
DPF• Diesel Particulate Filter
– Also known as• Aftertreatment device, Catalytic converter
• Critical component for emission compliance
• Collects particulate matter
• Must regenerate periodically – Passive (no action required by operator)– Active (manual switch must be activated)