| 95 4.0L VIN C |
| Flash Code |
Fault Location |
Probable Cause |
| 12 |
Ignition control module (ICM) -4X reference circuit malfunction |
Wiring open circuit/short circuit to ground/ short circuit to positive, ICM, ECM |
| 13 |
Heated oxygen sensor (H02S) 1, bank 1 -open circuit |
Wiring open circuit/short circuit to ground/ short circuit to positive, H025, 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/low |
Wiring, alternator, ECM |
| 17 |
Heated oxygen sensor (H02S) 1, bank 2 -open circuit |
Wiring open circuit/short circuit to ground/ short circuit to positive, H025, ECM |
| 19 |
Fuel pump circuit -short circuit |
Wiring short circuit to positive, fuel pump relay, engine oil pressure warning lamp switch |
| 20 |
Fuel pump circuit -open circuit |
Wiring open circuit/short circuit to ground, fuel pump relay, fuel pump, engine oil pressure warning lamp switch, engine oil pressure too low |
| 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 |
Ignition control module (ICM) -IC circuit malfunction |
Wiring open circuit/short circuit to positive, ICM, ECM |
| 24 |
Vehicle speed sensor (VSS) |
Wiring open circuit/short circuit to ground, V55, ECM |
| 25 |
Ignition control module (ICM) -24X signal circuit malfunction |
Wiring open circuit/short circuit to ground, ICM, ECM |
| 26 |
Closed throttle position (CTP) switch -voltage low |
Wiring short circuit to ground, 15C actuator, ECM |
| 27 |
Closed throttle position (CTP) switch -voltage high |
Wiring open circuit, 15C actuator, ECM |
| 28 |
Transmission range (TR) switch |
Wiring open circuit/short circuit to ground, TR switch, ECM |
| 29 |
Shift solenoid (SS) B |
Wiring open circuit/short circuit to ground, transmission mechanical fault, 55, ECM |
| 30 |
Idle speed (ISC) actuator |
Wiring open circuit/short circuit to ground, throttle valve tight/sticking, 15C actuator, ECM |
| 31 |
Manifold absolute pressure (MAP) sensor -voltage high, low vacuum indicated |
Wiring short circuit to positive, hose blockedlleaking, MAP sensor, ECM |
| 32 |
Manifold absolute pressure (MAP) sensor -voltage low, high vacuum indicated |
Wiring open circuit/short circuit to ground, MAP sensor, ECM |
| 33 |
Brake pedal position switch (BPP) -extended travel contacts -circuit malfunction |
Wiring, AB5 |
| 34 |
Manifold absolute pressure (MAP) sensor, low vacuum indicated |
Wiring open circuit, vacuum leak, ECM |
| 35 |
Ignition control module (ICM) -reference low circuit malfunction |
Wiring open circuit/short circuit to positive, ICM, ECM |
| 36 |
Exhaust gas recirculation (EGR) solenoid position sensor |
Wiring open circuit/short circuit to groundl short circuit to positive, EGR valve, ECM |
| 37 |
Intake air temperature (IAT) sensor -high temperature indicated |
Wiring short circuit to ground, IAT sensor, ECM |
| 38 |
Intake air temperature (IAT) sensor -low temperature indicated |
Wiring open circuit, IAT sensor, ECM |
| 39 |
Torque converter clutch (TCC) -not engaging |
Wiring open circuit/short circuit to ground, BPP switch (TCC), supply wire, TCC solenoid, transmission mechanical fault, ECM |
| 40 |
Power steering pressure (PSP) switch -open circuit |
Wiring open circuit/short circuit to ground, PSP switch, ECM |
| 41 |
Ignition control module (ICM) -camshaft position (CMP) signal |
Wiring open circuit/short circuit to ground, CMP sensor, ICM, ECM |
| 42 |
Heated oxygen sensor (H02S) 1, bank 2 -mixture lean |
Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, H02S |
| 43 |
Heated oxygen sensor (H02S) 1, bank 2 -mixture rich |
Wiring open circuit, fuel pressure high, injector(s) leaking, H02S contamination, EVAP canister purge valve, TP sensor, EGR system, H02S |
| 44 |
Heated oxygen sensor (H02S) 1, bank 1 mixture lean |
Wiring short circuit to ground, injector(s) blocked, fuel contamination, fuel pressure low, exhaust system leaking, H02S |
| 45 |
Heated oxygen sensor (H02S) 1, bank 1 mixture rich |
Wiring open circuit, fuel pressure high, injector(s) leaking, H02S contamination, EVAP canister purge valve, TP sensor, EGR system, H02S |
| 46 |
Long term fuel trim -imbalance bank 1/ bank 2 |
Injector(s) leaking, H02S, intake/exhaust system leaking |
| 48 |
Exhaust gas recirculation (EGR) valve -flow |
Wiring open circuit/short circuit to ground, EGR system blocked, EGR valve, ECM |
| 51 |
Engine control module (ECM) -PROM |
Insecure PROM, incorrect PROM, ECM |
| 52 |
Engine control module (ECM) -memory reset |
Battery disconnected, wiring |
| 53 |
Ignition control module (ICM) -4X reference circuit malfunction |
Wiring open circuit/short circuit to ground, ICM, ECM |
| 55 |
Closed throttle position (CPT) -range |
Throttle valve tight/sticking, ISC actuator, TP sensor, cruise control cable |
| 56 |
Turbine shaft speed (TSS) sensor -circuit malfunction |
Wiring, TSS sensor, ECM |
| 57 |
Transmission fluid temperature (TFT) sensor -high temperature indicated |
Wiring short circuit to ground, TFT sensor, ECM |
| 58 |
Immobilizer control module -fuel enable signal |
Wiring open circuit/short circuit to ground, immobilizer control module, ECM |
| 59 |
Transmission fluid temperature (TFT) sensor -low temperature indicated |
Wiring open circuit, TFT sensor, ECM |
| 60 |
Park/neutral input with cruise control engaged |
Driver error, wiring open circuit/short circuit to ground, TFP switch |
| 61 |
Cruise control vent solenoid |
Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control vent solenoid, cruise control servo, ECM |
| 62 |
Cruise control vacuum solenoid |
Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control vacuum solenoid, cruise control servo, ECM |
| 63 |
Cruise control -set speed/vehicle speed mismatch |
Wiring open circuit/short circuit to ground! short circuit to positive, hoses leaking, cruise control servo, ECM |
| 64 |
Cruise control -acceleration too high |
Slippery road conditions |
| 65 |
Cruise control servo position sensor -circuit malfunction |
Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control servo, ECM |
| 66 |
Cruise control -engine speed too high |
Slippery road conditions, transmission mechanical fault |
| 67 |
Cruise control switch -circuit malfunction |
Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control switch, ECM |
| 68 |
Cruise control servo position sensor -range |
Wiring, hoses blocked/leaking, brake pedal vacuum valve, cruise control servo, ECM |
| 69 |
Cruise control disabled -TCS active |
Slippery road conditions |
| 70 |
Throttle position (TP) sensor -circuit malfunction |
Wiring open circuit/short circuit to ground! short circuit to positive, TP sensor |
| 71 |
Manifold absolute pressure (MAP) sensor -circuit malfunction |
Wiring open circuit/short circuit to ground! short circuit to positive, MAP sensor |
| 73 |
Engine coolant temperature (ECT) sensor -circuit malfunction |
Wiring open cirCUit/short circuit to ground! short circuit to positive, ECT sensor |
| 74 |
Intake air temperature (IAT) sensor -circuit malfunction |
Wiring open circuit/short circuit to ground! short circuit to positive, IAT sensor |
| 75 |
Vehicle speed sensor (VSS) -circuit malfunction |
Wiring open circuit/short circuit, VSS |
| 76 |
Transmission pressure control (PC) solenoid -circuit malfunction |
Wiring, PC solenoid, ECM |
| 80 |
Thro,ttle position (TP) sensor -idle learned incomplete |
TP sensor/idle learn procedure not completed |
| 83 |
Ignition control module (ICM) -4X124X signal circuit malfunction |
Electromagnetic interferenc~, wiring, CKP sensor(s), ICM, ECM |
| 85 |
Idle learn throttle position -maximum position |
Throttle valve tight/sticking, TP sensor, ISC actuator |
| 86 |
Transmission gear ratio |
Turbine shaft speed (TSS) sensor, VSS, transmission mechanical fault, ECM |
| 88 |
Torque converter clutch (TCC) -stuck ON |
Wiring short circuit to ground, transmission internal wiring, TCC solenoid, ECM |
| 89 |
Extended shift -adaptation limit reached |
Transmission mechanical fault |
| 90 |
Brake pedal position (BPP) switch TCC |
Wiring open circuit/short circuit to ground, incorrectly adjusted, BPP switch, ECM |
| 91 |
Park/neutral position (PNP) switch -circuit malfunction |
Wiring open circuit/short circuit to ground, incorrectly adjusted, PNP switch, ECM |
| 93 |
Traction control system (TCS) -torque request circuit – |
Wiring open circuit/short circuit to ground/ short circuit to positive, ABS control module trouble code(s) stored, ECM |
| 94 |
Shift solenoid (SS) A -ratio problem |
Wiring open circuit/short circuit to ground, SS, transmission mechanical fault, ECM |
| 95 |
Engine stall or near stall detected |
ECM trouble code(s) stored, wiring, mechanical fault, transmission mechanical fault |
| 96 |
Torque converter clutch (TCC) -over stressed |
ECM trouble codes stored, driver error |
| 99 |
Cruise control servo -position high after disengagement |
Wiring, throttle valve tight/sticking, cruise control servo |
| 106 |
Brake pedal position (BPP) switch, brake lamps -circuit malfunction |
Wiring, BPP switch |
| 108 |
Engine control module (ECM) -PROM |
Insecure PROM, incorrect PROM |
| 109 |
Engine control module (ECM) -memory reset |
Battery disconnected, wiring |
| 110 |
Alternator ‘L’ terminal -circuit malfunction |
Wiring open circuit/short circuit to ground, alternator, battery temperature sensor, ECM |
| 112 |
Engine control module (ECM) -EEPROM |
ECM |
| 117 |
Shift solenoid (SS) A/B -circuit malfunction |
Wiring open circuit/short circuit to ground, transmission mechanical fault, ECM |
| 119 |
Injector -circuit malfunction |
Wiring open circuit/short circuit to ground, injectors, ECM |
| 120 |
A/C refrigerant temperature sensor low pressure side -circuit malfunction |
Wiring open circuit/short circuit to ground, NC refrigerant temperature sensor, ECM |
| 121 |
A/C refrigerant temperature sensor high pressure side -circuit malfunction |
Wiring open circuit/short circuit to ground, A/C refrigerant temperature sensor, ECM |
| 122 |
Engine coolant temperature -high with A/C request |
Cooling system |
| 123 |
Low A/C refrigerant charge |
Low A/C refrigerant charge, wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant low pressure switch, A/C amplifier, ECM |
| 124 |
A/C request circuit -voltage high |
Wiring short circuit to positive, A/C refrigerant low pressure switch, A/C amplifier, ECM |
| 125 |
A/C refrigerant high pressure switch -circuit malfunction |
Wiring short circuit to ground, A/C refrigerant high pressure switch, ECM |
| 126 |
A/C refrigerant pressure -high |
Wiring short circuit to ground, A/C refrigerant temperature sensor (high side), A/C system |
| 128 |
A/C high discharge temperature/pressure |
Wiring short circuit to ground, A/C refrigerant high pressure switch, A/C compressor clutch |
| 131 |
Knock sensor (KS) -test failure |
Wiring, KS incorrectly fitted, KS, ECM |
| 132 |
Knock sensor (KS) -circuit malfunction |
Wiring open circuit/short circuit to ground/ short circuit to positive, KS incorrectly fitted, KS, insecure PROM, ECM |
| 133 |
CAN data bus -ABS/TCS |
Wiring, ABS control module trouble code(s) stored |
| 134 |
CAN data bus -instrument panel |
Wiring open circuit, instrument panel |
| 135 |
CAN data bus -A/C system |
Wiring open circuit, A/C amplifier |
| 136 |
CAN data bus -diagnostic energy reserve module (DERM) |
Wiring open circuit, DERM |
