1. 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.

2. 2007 gauge diagnostics Diagnostic mode PB set Vehicle speed = 0
Ignition on
Press “M” button for 5 seconds then release
“M” or “T” to scroll up or down
Press both “M” and “T” to enter selected diagnostic section

3. Instrument diagnostics
2007 Gauge Diagnostics
Instrument diagnostics
Gauge test
Tests gauge movements
Lamp test
Tests each indicator lamp
LCD test
Tests speedometer LCD
Input Status
Provides status of inputs

4. 2007 gauge diagnostics Engine Diagnostics
Screen displays SAE fault numbers
SPN (suspect parameter number)
FMI (failure mode identifier)
Press “M” or “T” to scroll up or down
See the attached link for cross reference
Link to Spartan Website for cross reference

5. 2007 Gauge Diagnostics Transmission
Speedo displays transmission diagnostics
Transmission doesn’t support it

6. 2007 Gauge Diagnostics ABS Screen displays SAE fault numbers
SID (subsystem identifier number)
FMI (failure mode identifier)
Press “M” or “T” to scroll up or down

7. 2007 Gauge Diagnostics Read Parameters: Engine speed Engine hours
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

8. 2007 Gauge 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

9. Configuration mode 2007 Gauge Configuration
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

10. Icons

11. Icons Defined

12. Icons Defined

13. 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…

14. 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)

15. DPF Switches
DPF override
Disables regen
DPF
Activates manual
Regen

16. DPF Lamps DPF HEST MIL Diesel Particulate Filter
Indicates Regeneration required
HEST
High Exhaust
System Temperature
MIL
Malfunction Indicator Lamp
(DDC Only)

17. DPF Lamp Indicates need to regenerate DPF
Steady on indicates need to perform regeneration
Least serve level
Drive it hard - or
Stationary with manual switch

18. DPF Lamp Indicates need to regenerate DPF
Flashing indicates need to perform regeneration
Moderately serve level
Stationary with manual switch
Failure to regen will lead to
potential engine derate

19. DPF Lamp & Check Engine Lamp
Indicates IMMEDIATE need to regenerate DPF
High severity level
Stationary with manual switch
Failure to regen will lead to
potential severe engine derate

20. Stop Engine Lamp Indicates DPF cannot be regenerated
DPF is too restricted to be regenerated
Must be serviced by authorized engine service center.

21. HEST Lamp Indicates high exhaust temperatures Temperatures vary
with engine model
May be speed
interlocked
Can come on during
normal operation
Will come on during
regeneration

22. MIL Lamp Malfunction indicator lamp Indicates an emissions
related fault
Detroit Diesel
engines only