GM GM 92-95 Sunfire OBD-I Trouble Code Info

GM

92-95 2.2, 2.3L VIN 4, D
Flash Code Fault Location Probable Cause
12 Start of diagnosis No engine speed (RPM) signal received
13 Oxygen sensor (O2S)/heated oxygen sensor (HO2S) Wiring open circuit, O2S/HO2S, ECM
14 Engine coolant temperature (ECT) sensor – voltage high/low Wiring, ECT sensor, ECM
15 Engine coolant temperature (ECT) sensor – voltage high Wiring open circuit, ECT sensor, ECM
16  System voltage – high/low Wiring, battery, alternator
17  Camshaft position (CMP) sensor – circuit malfunction Wiring, CMP sensor, mechanical fault, ECM
19  Crankshaft position (CKP) sensor, 7X/58X signal – circuit malfunction Wiring, CKP sensor, ECM
21 Throttle position (TP) sensor – voltage high/low Wiring, TP sensor, ECM
22 Throttle position (TP) sensor – voltage low Wiring open circuit/short circuit to ground, TP sensor, ECM
23 Intake air temperature (IAT) sensor – voltage high/low Wiring, IAT sensor, ECM
24 Vehicle speed sensor (VSS) – no signal Wiring, VSS, ECM
25 Intake air temperature (IAT) sensor – voltage low Wiring short circuit to ground, IAT sensor, ECM
26 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
27 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
28 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
29 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
31  Transmission range (TR) switch – malfunction Wiring, TR switch, ECM
32 Exhaust gas recirculation (EGR) solenoid Wiring, poor connections, EGR valve, ECM
33 Manifold absolute pressure (MAP) sensor – voltage high/low Wiring, hose blocked/leaking, MAP sensor, ECM
34 Manifold absolute pressure (MAP) sensor – voltage low Wiring open circuit/short circuit to ground, MAP sensor, ECM
35  Idle air control (IAC) valve Wiring, IAC valve, intake system leaking, fuel system, PCV valve, A/C system, mechanical fault, ECM
36 Crankshaft position (CKP) sensor, at crankshaft pulley – 24X signal circuit malfunction Wiring, CKP sensor, ECM
39  Clutch pedal position (CPP) switch Wiring, incorrectly adjusted, CPP switch, ECM
41 Engine control module (ECM), programming – malfunction ECM incorrect programming, ECM failure
42 Ignition control, timing signal – circuit malfunction Wiring, poor connections, ICM, ECM
43 Knock sensor (KS) – circuit malfunction Wiring, KS, ECM
44 Oxygen sensor (O2S)/heated oxygen sensor (HO2S) – mixture lean Wiring short circuit to ground, fuel pressure low, MAP sensor, misfire, fuel contamination, exhaust system leaking, O2S/HO2S, ECM
45 Oxygen sensor (O2S)/heated oxygen sensor (HO2S) – mixture rich Fuel pressure high, injector(s) leaking, O2S contamination, EVAP canister purge valve, TP sensor, MAP sensor, EGR system, O2S/H2OS, ECM
46  Immobilizer system, code – malfunction Incorrect key, ECM
51 Engine control module (ECM) – PROM Poor connections, incorrect programming, ECM
52  Engine control module (ECM) – malfunction ECM
53  System Voltage – high Alternator
54 Fuel pump circuit – voltage low Wiring open circuit/short circuit to ground, fuel pump relay, fuel pump, engine oil pressure warning lamp switch, ECM
55 (1992-1994)  Engine control module (ECM) – malfunction ECM
55 (1995)  Engine control module (ECM), fuel lean monitor ECM
61  Oxygen sensor (O2S) – malfunction O2S
62  Transmission gear switch signal circuit Wiring open circuit/short circuit to ground, 2nd gear switch, 3rd gear switch, ECM
65  Injector(s) – circuit malfunction Wiring, injector(s)
66 A/C refrigerant pressure sensor – voltage low Wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant pressure sensor, ECM
70 A/C refrigerant pressure sensor – voltage high Wiring open circuit/short circuit to positive, A/C refrigerant pressure sensor, ECM
72 CAN data bus, ECM to instrumentation control module – lost communication Wiring, poor connections, instrumentation control module, ECM
75 Exhaust gas recirculation (EGR) solenoid 1 – circuit malfunction Wiring, EGR valve, ECM
76 Exhaust gas recirculation (EGR) solenoid 2 – circuit malfunction Wiring, EGR valve, ECM
77 Exhaust gas recirculation (EGR) solenoid 3 – circuit malfunction Wiring, EGR valve, ECM
79 Vehicle speed sensor (VSS) – voltage high Wiring, VSS, ECM
80 Vehicle speed sensor (VSS) – voltage high Wiring, VSS, ECM
81  Brake pedal position (BPP) switch, TCC – circuit malfunction Wiring, BPP switch, ECM
82  Crankshaft position (CKP) sensor, in cylinder block – 3X signal circuit malfunction Wiring open circuit/short circuit to ground, CKP sensor, ICM
85  Engine control module (ECM), PROM – malfunction Poor connections, incorrect programming, ECM
86  Engine control module (ECM), analogue/digital converter A/C refrigerant pressure sensor/knock sensor (KS)/engine coolant temperature (ECT) sensor/fuel pump monitor circuit short circuit to battery voltage
87  Engine control module (ECM), EEPROM – malfunction Poor connections, incorrect programming, ECM