Navistar N9 Diagnostic Manual page 21

1 DIAGNOSTIC TROUBLESHOOTING PROCEDURES
SPN FMI Sub-section
3242 3 DPFIT (page 876)
3242 4 DPFIT (page 876)
3242 15 DPFIT (page 876)
3242 16 DPFIT (page 876)
3246 0 DPFOT (page 898)
3246 2 DPFOT (page 898)
3246 3 DPFOT (page 898)
3246 4 DPFOT (page 898)
3246 15 DPFOT (page 898)
3246 16 DPFOT (page 898)
3251 0 AFT (page 156)
3251 2 DPFDP / DPFOP (page 844)
3251 3 DPFDP / DPFOP (page 844)
3251 4 DPFDP / DPFOP (page 844)
3251 15 AFT (page 156)
3251 16 AFT (page 156)
3361 2 DEF: SP (page 698)
3361 3 DEF: SP (page 698)
3361 4 DEF: SP (page 698)
3362 31 DEF: SP (page 698)
3363 3 DEFTHC (page 727)
3363 4 DEFTHC (page 727)
3363 7 DEFTHC (page 727)
3363 16 DEFTHC (page 727)
3363 18 DEFTHC (page 727)
3364 31 ETP (page 1187)
3471 1 AFTFPC (page 279)
3471 7 AFTFPC (page 279)
3471 10 AFTFPC (page 279)
3479 3 AFTFPC (page 279)
3479 4 AFTFPC (page 279)
3479 5 AFTFPC (page 279)
3479 6 AFTFPC (page 279)
3480 3 AFTFIS (page 226)
3480 4 AFTFIS (page 226)
Condition Description
DPFIT signal Out of Range HIGH
DPFIT signal Out of Range LOW
DPFIT above Warning Temperature
DPFIT above Maximum Temperature
DPFOT above Critical Temperature
DPFOT signal erratic, intermittent, or incorrect
DPFOT signal Out of Range HIGH
DPFOT signal Out of Range LOW
DPFOT above Warning Temperature
DPFOT above Maximum Temperature
DPFDP excessively HIGH (Plugged filter)
DPFDP signal erratic, intermittent, or incorrect
DPFDP signal Out of Range HIGH
DPFDP signal Out of Range LOW
DPF Soot Load - Least Severe Level
DPF Soot Load - Moderately Severe Level
DEFSP signal erratic, intermittent or incorrect
DEFSP signal Out of Range HIGH
DEFSP signal Out of Range LOW
DEF dosing unable to prime
DEF Tank Heater Control Valve short to PWR
DEF Tank Heater Control Valve short to GND
DEF Tank Heater Control Valve Mechanical system not
responding
DEF Tank Heater Control Valve stuck open fault
DEF Tank Heater Control Valve unable to thaw frozen DEF
Intake Throttle Valve short circuit fault
AFT Fuel Pressure 1 below desired (Low system pressure)
AFT Fuel Doser Valve not responding as expected
AFT Fuel Pressure incorrect dosing pressure multiple events
AFT Fuel Doser Valve Short to PWR
AFT Fuel Doser Valve Short to GND
AFT Fuel Pressure Valve Open or Short to GND low side
AFT Fuel Doser Valve High Side Short circuit
AFTFP1 signal Out of Range HIGH
AFTFP1 signal Out of Range LOW
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