Diagnostic Trouble Code (Dtc's) List - Navistar N9 Diagnostic Manual

1 DIAGNOSTIC TROUBLESHOOTING PROCEDURES

Diagnostic Trouble Code (DTC's) List

SPN FMI Sub-section
27 0 EGR (page 1074)
27 14 EGR (page 1074)
51 3 ETP (page 1187)
51 4 ETP (page 1187)
51 7 ETP (page 1187)
91 2 APP (page 402)
91 3 APP (page 402)
91 4 APP (page 402)
94 0 EFP (page 1065)
94 1 EFP (page 1065)
94 3 FDP (page 1247)
94 4 FDP (page 1247)
94 17 FDP (page 1247)
94 18 FDP (page 1247)
96 3 FLI (page 1265)
96 4 FLI (page 1265)
96 19 FLI (page 1265)
100 1 EWPS (page 1210)
100 3 EOP (page 1152)
100 4 EOP (page 1152)
100 18 EWPS (page 1210)
102 2 IMP (page 1322)
102 3 IMP (page 1322)
102 4 IMP (page 1322)
102 7 IMP (page 1322)
102 10 IMP (page 1322)
102 16 IMP (page 1322)
102 18 IMP (page 1322)
105 2 IMT (page 1349)
105 3 IMT (page 1349)
105 4 IMT (page 1349)
108 2 ECM (page 1000)
108 3 ECM (page 1000)
108 4 ECM (page 1000)
Condition Description
EGRP fault: over temperature
EGR internal circuit failure
ETP signal Out of Range HIGH
ETP signal Out of Range LOW
ETP does not agree with commanded position
APP1 and APP2 signal conflict
APP1 signal Out of Range HIGH
APP1 signal Out of Range LOW
Fuel Delivery Pressure above Critical
Fuel Delivery Pressure below Critical
FDP signal Out of Range HIGH
FDP signal Out of Range LOW
Fuel Delivery Pressure below minimum
Fuel Delivery Pressure below min during cranking
Fuel Level signal Out of Range HIGH
Fuel Level signal Out of Range LOW
Fuel Level not detected on J1939
Engine Oil System below Critical Pressure
EOP signal Out of Range HIGH
EOP signal Out of Range LOW
Engine Oil System below Warning Pressure
IMP signal erratic, intermittent, or incorrect
IMP signal Out of Range HIGH
IMP signal Out of Range LOW
IMP signal not responding as expected
Boost slow response fault
Overboost
Underboost
IMT signal Erratic, Intermittent, or Incorrect
IMT signal Out of Range HIGH
IMT signal Out of Range LOW
BARO signal erratic, intermittent, or incorrect
BARO signal Out of Range HIGH
BARO signal Out of Range LOW
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