| 92-94 2.0, 3.1L VIN H, T |
|---|
| 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 | Engine control module (ECM) – malfunction | 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 |
