GM GM 91-92 4.5L VIN 8 Trouble Code Info

GM

91-92 4.5L VIN 8
Trouble code Fault location Probable cause
E012 Distributor -no reference signal Wiring open circuit/ short circuit to grounc. positive, ICM, CKP, ECM
E013 Oxygen sensor (028) 1, bank 1 Wiring open circuit/short circuit to positivfo 02S, ECM
E014 Engine coolant temperature (ECT) sensor -voltage low Wiring short circuit to ground, ECT sensor ECM
E015 Engine coolant temperature (ECT) sensor -voltage high Wiring open circuit, ECT sensor, ECM
E016 Battery voltage -high/low Wiring, alternator, ECM
E017 Oxygen sensor (028) 1, bank 2 Wiring open circuit/short circuit to positive.. 025, ECM
E019 Fuel pump circuit -short circuit Wiring short circuit to positive, fuel pump relay, engine oil pressure switch, ECM
E020 Fuel pump circuit -open circuit Wiring open circuit/short circuit to ground positive, fuel pump relay, engine oil pressure switch, ECM
E021 Throttle position (TP) sensor -voltage high Wiring open circuit/short circuit to positive TP sensor, ECM
E022 Throttle position (TP) sensor -voltage low Wiring open circuit/short circuit to ground. TP sensor, ECM
E023 Ignition control module (ICM) -circuit malfunction Wiring open circuit/short circuit to ground. CKP sensor, ICM
E024 Vehicle speed sensor (V8S) Wiring open circuit/short circuit to ground. V5S, ECM
E026 Closed position throttle (CPT) switch -short circuit Wiring, CPT switch, ECM
E027 Closed position throttle (CPT) switch -open circuit Wiring, CPT switch, ECM
E030 Idle speed control (ISC) actuator Wiring, misfire, throttle valve tight/sticking, intake system leaking, TPS, ISC actuator, ECM
E031 Manifold absolute pressure (MAP) sensor -short circuit Wiring short circuit to positive, MAP sensor
E032 Manifold absolute pressure (MAP) sensor -open circuit Wiring open circuit/short circuit to ground, MAP sensor, ECM
E034 Manifold absolute pressure (MAP) sensor -voltage high Wiring open circuit/short circuit to positive, MAP sensor
E037 Intake air temperature (IAT) sensor -short circuit Wiring short circuit, IAT sensor, ECM
E038 Intake air temperature (IAT) sensor -open circuit Wiring open circuit, IAT sensor, ECM
E039 Torque converter clutch (TCC) -slipping Wiring open circuit/short circuit to ground, supply wire, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM
E040 Power steering pressure (P8P) switch -open circuit Wiring open circuit/short circuit to ground/ positive, P5P switch, ECM
E041 Camshaft position (CMP) sensor -circuit malfunction Wiring open circuit/short circuit to ground, CMP sensor, ECM
E042 Oxygen sensor (028) 1, bank 2 -mixture lean Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, 025, ECM
E043 Oxygen sensor (028) 1, bank 2 -mixture rich Wiring open circuit, fuel pressure high, injector(s) leaking, 025 contamination, EVAP canister purge valve, MAP sensor hoses, 025, ECM
E044 Oxygen sensor (028) 1, bank 1 -mixture lean Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, 025, ECM
E045 Oxygen sensor (028) 1, bank 1 -mixture rich Wiring open circuit, fuel pressure high, injector(s) leaking, 025 contamination, EVAP canister purge valve, MAP sensor hoses, 025, ECM
E046 Long term fuel trim -imbalance bank 1/bank 2 Injector(s) leaking, H025, intake/exhaust system leaking, spark plug(s), ignition system
E047 Body control module (BCM), CAN data bus -communication malfunction Wiring, BCM
E050  Transmission 2nd gear pressure switch  Wiring open circuit/short circuit to ground, vacuum modulator/hoses, transmission mechanical fault
E051 Engine control module (ECM) -PROM Insecure PROM, incorrect PROM, ECM
E052 Engine control module (ECM) -KAM reset Battery disconnected, ECM disconnected
E053 Distributor -intermittent reference signal Wiring open circuit/ short circuit to ground/ positive, CKP
E055 Throttle position (TP) sensor -incorrectly adjusted Throttle valve tight/sticking, TP sensor incorrectly adjusted
E058 Immobilizer control module -fuel enable signal Incorrect ignition key, wiring open circuit/ short circuit to ground/short circuit to positive, immobilizer control module, ECM
E060  Park/neutral input with cruise control engaged  Driver error, wiring open circuit/short circuit to ground, PNP switch
E061 Cruise control vent solenoid Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control vent solenoid, cruise control servo, ECM
E062 Cruise control vacuum solenoid Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control vacuum solenoid, cruise control servo, ECM
E063  Cruise control -set speed/vehicle speed mismatch  Wiring open circuit/short circuit to ground/ short circuit to positive, hoses leaking, cruise control servo, ECM
E064 Cruise control -acceleration too high Slippery road conditions
E065 Cruise control servo position sensor -circuit malfunction Wiring open circuit/short circuit to groundl short circuit to positive, cruise control servo, ECM
E066 Cruise control -engine speed too high Slippery road conditions, transmission mechanical fault
E067 Cruise control switch -circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, cruise control switch, ECM
E068 Cruise control servo position sensor -range Wiring, hoses blocked/leaking, brake pedal vacuum valve, cruise control servo, ECM
E069 Cruise control disabled -traction control system (TCS) active Slippery road conditions
E070 Throttle position (TP) sensor -intermittent signal Wiring open circuit/short circuit to groundl short circuit to positive, TP sensor
E071 Manifold absolute pressure (MAP) sensor -intermittent signal Wiring open circuit/short circuit to groundl short circuit to positive, MAP sensor
E073 Engine coolant temperature (ECT) sensor -intermittent signal Wiring open circuit/short circuit to groundl short circuit to positive, ECT sensor
E074 Intake air temperature (IAT) sensor -intermittent signal Wiring open circuit/short circuit to groundl short circuit to positive, IAT sensor
E075 Vehicle speed sensor (VSS) -intermittent signal Wiring open circuit/short circuit, VSS
E080 Fuel system rich Fuel pressure high, injector(s) leaking, EVAP system
E085 Throttle body service required throttle valve tight/sticking, TP sensor, ISC actuator
E090 Brake pedal position (BPP) switch for torque converter clutch (TCC) Wiring open circuit/short circuit to ground, incorrectly adjusted, BPP switch, ECM
E091 Park/neutral position (PNP) switch -circuit malfunction Wiring open circuit/short circuit to ground, incorrectly adjusted, PNP switch, ECM
E096 Torque converter clutch (TCC) -over stressed ECM trouble codes stored, driver error
E097 Transmission shifted from PIN to D/R at high throttle angle Driver error, wiring, TR switch
E098 Transmission shifted from PIN to D/R in ISC range Driver error, wiring, TR switch
E099 Cruise control servo -position high after disengagement Wiring, throttle valve tight/sticking, hoses blocked/leaking, cruise control servo