| 93 3.8L VIN L/1 |
|---|
| 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 – 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 | Camshaft position (CMP) signal/crankshaft position (CKP) signal error | Wiring open circuit/short circuit to ground, CKP sensor, CMP sensor, crankshaft pulley/balancer |
| 19 | Crankshaft position (CKP) sensor intermittent 7x signal | 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 | 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) |
| 28 | 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) |
| 29 | Transmission gear switch signal circuit 4th gear | Wiring open circuit/short circuit to ground, 4th gear switch, 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 speed control (ISC) system – malfunction | Wiring open circuit/short circuit to ground/short circuit to positive, IAC valve, ECM |
| 36 | Shift solenoids (SS) | Wiring open circuit/short circuit to ground, SS |
| 37 | Brake pedal position (BPP) switch for torque converter clutch (TCC) | Wiring open circuit/short circuit to ground, incorrectly adjusted BPP switch, BPP switch, ECM |
| 38 | Brake pedal position (BPP) switch/ torque converter clutch (TCC) | Wiring open circuit/short circuit to ground, supply wire, BPP switch, TCC 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) – 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 control module – fuel enable signal | Incorrect ignition key, wiring open circuit/short circuit to ground/short circuit to positive, immobilizer control module, ECM |
| 51 | Engine control module (ECM) – PROM | Insecure PROM, incorrect PROM, ECM |
| 53 | Exhaust gas recirculation (EGR) valve solenoid 1 | Wiring open circuit/short circuit to ground,exhaust system blocked, EGR valve, ECM |
| 54 | Exhaust gas recirculation (EGR) valve solenoid 2 | Wiring open circuit/short circuit to ground, exhaust system blocked, EGR valve, ECM |
| 55 | Exhaust gas recirculation (EGR) valve solenoid 3 | Wiring open circuit/short circuit to ground, exhaust system blocked, EGR valve, ECM |
| 56 | Engine control module quad driver/output driver | Wiring, ECM controlled components, ECM |
| 57 | Boost control problem | Wiring short circuit to ground, hoses blocked/leaking, boost bypass actuator, boost control solenoid, 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 -voltage high | 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 |
| 65 | Cruise control servo position sensor – circuit malfunction | Wiring open circuit/short circuit to ground/short to positive, cruise control servo, 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 refrigerant pressure switch – engine coolant blower motors | Wiring short circuit to ground, A/C refrigerant pressure switch, ECM |
| 70 | A/C refrigerant pressure sensor – voltage high | Wiring open circuit/short circuit to positive, A/C refrigerant pressure sensor, ECM |
| 72 | Vehicle Speed Sensor (VSS) | Wiring open circuit/short circuit to ground, VSS, ECM |
| 75 | Exhaust gas recirculation (EGR) valve solenoid 1 | Wiring open circuit/short circuit to ground, supply wire, EGR valve, ECM |
| 76 | Exhaust gas recirculation (EGR) valve solenoid 2 | Wiring open circuit/short circuit to ground, supply wire, EGR valve, ECM |
| 77 | Exhaust gas recirculation (EGR) valve solenoid 3 | Wiring open circuit/short circuit to ground, supply wire, EGR valve, ECM |
| 79 | Transmission fluid temperature (TFT) – high | Transmission mechanical fault, towing |
| 80 | Torque converter clutch (TCC) – slipping | Wiring open circuit/short circuit to ground, supply wire, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM |
| 82 | Ignition control module (ICM) – 3X reference circuit malfunction | Wiring open circuit/short circuit to ground, supply wire, CKP signal sensor, ICM, ECM |
| 85 | Engine control module (ECM) – PROM | Insecure PROM, incorrectly coded |
| 86 | Engine control module (ECM) – analogue/digital converter | A/C refrigerant pressure sensro/KS/ECT sensor/fuel pump monitor circuit short circuit to battery voltage |
| 87 | Engine control module (ECM) – PROM error | Insecure PROM, incorrectly coded |
| 90 | Torque converter clutch (TCC) – stuck ON | Wiring open circuit/short circuit to ground, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM |
| 96 | Engine control module (ECM) – ignition supply voltage low | Wiring open circuit, alternator, ECM |
| 98 | Engine control module (ECM) – incorrectly coded | ECM incorrectly coded, ECM |
| 99 | Cruise control – power management mode | Hoses blocked, brake pedal vacuum valve, cruise control servo, cruise control cable binding |
