Section 110-0030
SM 1172 2-98
5
Engine - Engine and Mounting
ELECTRONIC FUEL SYSTEM DIAGNOSTIC CODES
Error Code Description Fault Lamp
111 ECM Hardware Internal Failure - Mission disabling Red
112 Timing Actuator - Mechanically stuck Red
113 Timing Actuator - Component shorted high Yellow
114 Timing Actuator - Component shorted low Yellow
115 Engine Speed Sensor - Both signals lost Red
116 Fuel Timing Pressure Sensor - Component shorted high Red
117 Fuel Timing Pressure Sensor - Component shorted low Red
118 Fuel Pump Pressure Sensor - Component shorted high Yellow
119 Fuel Pump Pressure Sensor - Component shorted low Yellow
121 Engine Speed Sensor - One signal lost Yellow
122 Boost Pressure Sensor - Component shorted high Yellow
123 Boost Pressure Sensor - Component shorted low Yellow
131 Throttle Position Sensor - Component shorted high Red
132 Throttle Position Sensor - Component shorted low Red
135 Oil Pressure Sensor - Component shorted high Yellow
141 Oil Pressure Sensor - Component shorted low Yellow
143 Oil Pressure Sensor - Data below normal range Amber
144 Engine Coolant Temperature Sensor - Component shorted high Yellow
145 Engine Coolant Temperature Sensor - Component shorted low Yellow
151 Engine Coolant Temperature Sensor - Data above normal range Amber
153 Intake Manifold Temperature Sensor - Component shorted high Yellow
154 Intake Manifold Temperature Sensor - Component shorted low Yellow
155 Intake Manifold Temperature Sensor - Data above normal range Amber
221 Ambient Air Pressure Sensor - Component shorted high Yellow
222 Ambient Air Pressure Sensor - Component shorted low Yellow
231 Coolant Pressure Sensor - Component shorted high Yellow
232 Coolant Pressure Sensor - Component shorted low Yellow
233 Coolant Pressure, Engine Protection - Low coolant pressure Amber
234 Engine Speed - Data above normal range Red
235 Engine Coolant Level - Data below normal range Amber
254 Fuel Shutoff Value - Component shorted low Red
259 Fuel Shutoff Solenoid - Fuel shutoff valve stuck open Red
261 Fuel Temperature, Engine Protection - Fuel temperature high Amber
263 Fuel Temperature Sensor - Component shorted high Yellow
265 Fuel Temperature Sensor - Component shorted low Yellow
316 Fuel Pump Actuator - Component shorted high or low Yellow
318 Fuel Pump Flow - Mismatch between estimated and desired pressures Yellow
342 ECM Not Calibrated - ECM software mission disabling failure Red
343 ECM Hardware Failure - Warning non mission disabling Yellow
346 ECM Software - Read/write, checksum error - Non mission disabling Yellow
415 Oil Pressure Sensor - Data indicates very low oil pressure Amber
422 Engine Coolant Level Sensor Signals - Data invalid Yellow
423 Fuel Timing Pressure Sensor - In-range failure Yellow
431 Throttle Position Idle Validation Switch - Invalid Yellow
432 Throttle Position Idle Validation Switch - Switch position & throttle percent mismatch Amber
441 Battery Voltage, Unswitched - Data below normal engine range Yellow
442 Battery Voltage, Unswitched - Data above normal engine range Yellow
451 Fuel Pressure Sensor - Component shorted high Red
452 Fuel Pressure Sensor - Component shorted low Red
455 Fuel Control Valve - Component shorted high or open Red
467 Timing Fueling Flow - Mismatch between estimated and desired timing Yellow
468 Fueling Rail Flow - Mismatch between estimated and desired rail pressure Yellow
511 Fuel Control Valve - Component shorted low Red
514 Fuel Control Valve - Actuator mechanically stuck open Red
524 Alternate Droop Switch Fault Yellow
551 Idle Validation Circuit - No voltage detected on both off-idle and idle pins Red
553 Engine Fueling Pressure Exceeded - Data above normal range Red
554 Fuel Pressure Sensor - In-range failure Yellow
555 Blowby Pressure, Engine Protection - Blowby pressure high Amber
719 Blowby Pressure Sensor - Component shorted high Yellow
729 Blowby Pressure Sensor - Component shorted low Yellow
753 Engine Speed Sensor - Engine speed signals do not match Off
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