Navistar N9 Diagnostic Manual page 22

18 1 DIAGNOSTIC TROUBLESHOOTING PROCEDURES
SPN FMI Sub-section
3482 3 AFTFSV (page 205)
3482 4 AFTFSV (page 205)
3509 3 VREF (page 2025)
3509 4 VREF (page 2025)
3510 3 VREF (page 2025)
3510 4 VREF (page 2025)
3511 3 VREF (page 2025)
3511 4 VREF (page 2025)
3521 11 DEFTLT (page 746)
3556 0 AFTFP2 (page 257)
3556 1 AFTFP2 (page 257)
3556 7 AFTFP2 (page 257)
3610 2 DPFDP / DPFOP (page 844)
3610 3 DPFDP / DPFOP (page 844)
3610 4 DPFDP / DPFOP (page 844)
3659 4 INJ (page 1365)
3659 5 INJ (page 1365)
3660 4 INJ (page 1365)
3660 5 INJ (page 1365)
3661 4 INJ (page 1365)
3661 5 INJ (page 1365)
3662 4 INJ (page 1365)
3662 5 INJ (page 1365)
3663 4 INJ (page 1365)
3663 5 INJ (page 1365)
3664 4 INJ (page 1365)
3664 5 INJ (page 1365)
3695 2 AFT (page 156)
3695 19 AFT (page 156)
3703 31 AFT (page 156)
3713 31 AFT (page 156)
3719 0 AFT (page 156)
3719 15 AFT (page 156)
3719 16 AFT (page 156)
3750 31 AFT (page 156)
Condition Description
AFT Fuel Enable Control Valve short to PWR
AFT Fuel Enable Control Valve open or short to GND
VREF 1 voltage above maximum
VREF 1 voltage below minimum
VREF 2 voltage above maximum
VREF 2 voltage below minimum
VREF 3 voltage above maximum
VREF 3 voltage below minimum
Improper Reductant in DEF Tank
AFT Fuel Pressure 2 excessively high (Restricted injection)
AFT Fuel Pressure 2 below desired (Possible system leak)
AFT Fuel Injector not responding as expected
DPFOP signal erratic, intermittent or incorrect
DPFOP signal Out of Range HIGH
DPFOP signal Out of Range LOW
Injector 1 close coil – short circuit
Injector 1 close coil – open circuit
Injector 2 close coil – short circuit
Injector 2 close coil – open circuit
Injector 3 close coil – short circuit
Injector 3 close coil – open circuit
Injector 4 close coil: short circuit
Injector 4 close coil – open circuit
Injector 5 close coil – short circuit
Injector 5 close coil – open circuit
Injector 6 close coil – short circuit
Injector 6 close coil – open circuit
DPF Regen Inhibit Switch erratic, intermittent or incorrect
DPF Regen Inhibit Switch status not detected on J1939
DPF Active Regeneration Inhibited Due to Inhibit Switch
DPF Active Regeneration Inhibited Due to System Timeout
DPF Soot Load - Highest (level 3/3)
DPF Soot Load - Lowest (level 1/3)
DPF Soot Load - Moderate (level 2/3)
DPF Regen inhibited due to low exhaust temperatures