| 92-93 3.3L VIN N |
|---|
| Flash Code | Fault Location | Probable Cause |
| 11 | Malfunction indicator lamp (MIL) – circuit malfunction | Wiring open circuit/short circuit to ground, MIL, supply wire, ECM |
| 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 – high temperature indicated | Wiring short circuit to ground, ECT sensor, ECM |
| 15 | Engine coolant temperature (ECT) sensor – low temperature indicated | Wiring open circuit, ECT sensor, ECM |
| 16 | Battery voltage – high or low | Wiring, alternator, ECM |
| 17 | Spark reference circuit | Wiring open circuit/short circuit to ground, ICM, ECM |
| 18 | Injector(s) – circuit malfunction | Wiring open circuit/short circuit to ground, supply wire, injectors, ECM |
| 19 | 7X reference – circuit malfunction | Wiring, CKP sensor, PROM, ECM |
| 21 | Throttle position (TP) sensor – voltage high | Wiring open circuit/short circuit to positive, 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 – low temperature | Wiring open circuit, IAT sensor, ECM |
| 24 | Vehicle speed sensor (VSS) | Wiring open circuit/short circuit to ground, PROM, VSS, ECM |
| 25 | Intake air temperature (IAT) sensor – high temperature | Wiring short circuit to ground, IAT sensor, ECM |
| 26 | Engine control module quad driver/output driver | Wiring open circuit/short circuit to ground/short circuit to positive, ECM controlled components, ECM (*see below for additional information) |
| 27 | Transmission gear switch signal circuit 2nd gear | Wiring open circuit/short circuit to ground, 2nd gear switch, ECM |
| 28 | Transmission gear switch signal circuit 3rd gear | Wiring open circuit/short circuit to ground, 3rd gear switch, ECM |
| 29 | Secondary air injection (AIR) system | Wiring open circuit/short circuit to ground/short circuit to positive, AIR valve relay, ECM |
| 31 | Park/neutral position (PNP) switch | Wiring open circuit/short circuit to ground, incorrectly adjusted, PNP switch, ECM |
| 32 | Exhaust gas recirculation (EGR) solenoid | Wiring open circuit/short circuit to ground, EGR valve, ECM |
| 33 | Manifold absolute pressure (MAP) sensor – circuit malfunction | Wiring open circuit/short circuit to positive, hose blocked/leaking, MAP sensor, ECM |
| 34 | Mass air flow (MAF) sensor – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, MAF sensor, ECM |
| 35 | Idle air control (IAC) valve | Wiring open circuit/short circuit to ground/short circuit to positive, intake system leaking, mechanical fault, IAC valve, ECM |
| 36 | Shift solenoids (SS) | Wiring open circuit/short circuit to ground, SS |
| 37 | Brake switch stuck ON | Wiring open circuit/short circuit to ground/short circuit to positive, brake switch, ECM |
| 38 | Brake pedal position (BPP) switch | Wiring open circuit/short circuit to ground/short circuit to positive, BPP switch incorrectly adjusted, BPP switch, ECM |
| 39 | Torque converter clutch (TCC) | Wiring open circuit/short circuit to ground, TCC solenoid, BPP switch, cooling fan fuse, transmission mechanical fault, ECM |
| 41 | Camshaft position (CMP) sensor | Wiring open circuit/short circuit to ground, CMP sensor, ICM, ECM |
| 42 | Ignition control module (ICM) – electronic spark timing (EST)/ignition control (IC)/bypass circuit malfunction | Wiring open circuit/short circuit to ground, ICM, ECM |
| 43 | Knock sensor (KS) | Wiring open circuit/short circuit to ground/short to positive, KS, PROM, ECM |
| 44 | Oxygen sensor (O2S)/heated oxygen sensor (HO2S) | Wiring short circuit to ground, fuel pressure low, fuel contamination, exhaust system leaking, O2S/HO2S, ECM |
| 45 | Oxygen sensor (O2S)/heated oxygen sensor (HO2S) – mixture rich | Fuel pressure high, injector(s) leaking, shield wiring open circuit, O2S contamination, EVAP canister purge valve, TP sensor, MAP sensor, EGR system, excessive fuel in engine oil, ECM |
| 46 | Immobilizer control module – fuel enable signal | Incorrect ignition key, wiring open circuit/short circuit to ground/short circuit to positive, immobilizer control module, ECM |
| 47 | Body control module (BCM), CAN data bus – communication malfunction | Wiring, PROM, BCM |
| 48 | Mass air flow (MAF) sensor – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, MAF sensor, ECM |
| 50 | System voltage low | Wiring open circuit/short circuit to ground, alternator, ECM |
| 51 | Engine control module (ECM) – PROM | Insecure PROM, incorrect PROM, ECM |
| 53 | System voltage high | Alternator, ECM |
| 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) | Ground wiring open circuit, insecure PROM, ECM |
| 58 | Immobilizer control module – fuel enable signal | Incorrect ignition key, wiring open circuit/short circuit to ground/short circuit to positive, immobilizer control module, ECM |
| 59 | Transmission fluid temperature (TFT) sensor -low temperature indicated | Wiring open circuit, TFT sensor, ECM |
| 61 | Cruise control vent solenoid | Wiring open circuit/short circuit to ground/short to positive, cruise control servo, ECM |
| 62 | Cruise control vacuum solenoid | Wiring open circuit/short circuit to ground/short to positive, cruise control servo, ECM |
| 63 | Cruise control servo position sensor – circuit malfunction | Wiring open circuit/short circuit to ground/short to positive, hoses leaking, cruise control servo, ECM |
| 64 | Heated oxygen sensor (H2OS) bank 2 – mixture lean | Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, ECM |
| 65 | Cruise control servo position sensor – circuit malfunction | Wiring open circuit/short circuit to ground/short to positive, cruise control servo, ECM |
| 66 | A/C refrigerant pressure sensor circuit – open or short circuit | Wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant pressure sensor, ECM |
| 67 | Cruise control switch – circuit malfunction | Wiring open circuit/short circuit to positive, cruise control switch, brake pedal vacuum valve, ECM |
| 68 | Cruise control servo – servo position sensor high | Hoses blocked, brake pedal vacuum valve, cruise control servo, cruise control cable binding |
| 69 | A/C compressor clutch relay – circuit malfunction | Wiring open circuit, A/C compressor clutch relay, ECM |
| 70 | A/C refrigerant pressure sensor – voltage high | Wiring open circuit/short circuit to ground/short circuit to positive, A/C compressor clutch relay, ECM |
| 72 | Vehicle Speed Sensor (VSS) – circuit malfunction | Wiring open circuit/short circuit to ground, VSS, ECM |
| 73 | Pressure control solenoid – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, ECM |
| 75 | Transmission system – voltage low | Supply wire, alternator, ECM |
| 76 | Exhaust gas recirculation (EGR) valve solenoid 2 | Wiring open circuit/short circuit to ground, supply wire, EGR valve, ECM |
| 77 | Engine coolant blower motor relay 1 – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, engine coolant blower motor relay, ECM |
| 78 | Engine coolant blower motor relay 2 – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, engine coolant blower motor relay, ECM |
| 79 | Transmission fluid – overtemp | Wiring open circuit/short circuit to ground, TFT sensor, ECM |
| 80 | Transmission component – slipping | Wiring open circuit/short circuit to ground/short circuit to positive, TR pressure switch, transmission mechanical fault, ECM |
| 81 | Transmission shift solenoid (SS), 2nd-3rd – circuit malfunction | Wiring open circuit/short circuit to ground, shift solenoid, ECM |
| 82 | Ignition control module (ICM) – 3X reference circuit malfunction | Wiring open circuit/short circuit to ground, supply wire, CKP signal sensor, ICM, ECM |
| 82 | Transmission shift solenoid (SS), 1st-2nd – circuit malfunction | Wiring open circuit/short circuit to ground, shift solenoid, ECM |
| 83 | Torque converter clutch (TCC) solenoid, pulse width modulated – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, TCC solenoid, ECM |
| 84 | Transmission shift solenoid (SS), 3rd-2nd – circuit malfunction | Wiring open circuit/short circuit to ground, shift solenoid, ECM |
| 85 | Torque converter clutch (TCC) – stuck ON | Wiring open circuit/short circuit to ground, transmission mechanical fault, TCC solenoid |
| 86 | ECM analog/digital – signal error | Wiring short to positive, A/C refrigerant pressure sensor, KS, ECT sensor, other DTC codes |
| 87 | Engine control module (ECM) – EEPROM | Insecure EEPROM, incorrect EEPROM, ECM |
| 90 | Torque converter clutch (TCC) solenoid – circuit malfunction | Wiring open circuit/short circuit to ground, TCC solenoid, ECM |
| 95 | Change oil lamp – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, instrument panel, engine oil life lamp bulb, ECM |
| 96 | Engine oil level warning lamp – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, instrument panel, engine oil level lamp bulb, oil level sensor, ECM |
| 98 | Engine control module (ECM) – incorrectly coded | ECM incorrectly coded, ECM |
| 97 | Vehicle speed sensor (VSS) – circuit malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, VSS, ECM |
| 98 | Invalid ECM program | ECM |
| 99 | Invalid ECM program | ECM |
