| 94-95 6.5L VIN P, Y, F, S |
|---|
| Flash Code | Fault Location | Probable Cause |
| 12 | Start of diagnosis | No engine speed (RPM) signal received |
| 13 | Fuel shut-off solenoid -circuit malfunction | Wiring open circuit, fuel shut-off solenoid, ECM |
| 14 | Engine coolant temperature (ECT) sensor -voltage low | Wiring, ECT sensor, ECM |
| 15 | Engine coolant temperature (ECT) sensor -voltage high | Wiring open circuit, ECT sensor, ECM |
| 16 | Vehicle speed sensor (VSS) -no/low signal | Wiring, VSS, ECM |
| 17 | Injection pump position sensor, high resolution -circuit malfunction | Wiring, injection pump position sensor, ECM |
| 18 | Injection pump position sensor, low resolution -circuit malfunction | Wiring, injection pump position sensor, ECM |
| 19 | Crankshaft position (CKP) sensor -circuit malfunction | Wiring, CKP sensor, ECM |
| 21 | Accelerator pedal position (APP) sensor 1 -voltage high | Wiring, APP sensor, ECM |
| 22 | Accelerator pedal position (APP) sensor 1 -voltage low | Wiring, APP sensor, ECM |
| 23 | Accelerator pedal position (APP) sensor 1 to 2/ 3 -signal variation | Wiring, APP sensor, ECM |
| 24 | Vehicle speed sensor (VSS) -no signal | Wiring, VSS, ECM |
| 25 | Accelerator pedal position (APP) sensor 2 -voltage high | Wiring, APP sensor, ECM |
| 26 | Accelerator pedal position (APP) sensor 2 -voltage low | Wiring, APP sensor, ECM |
| 27 | Accelerator pedal position (APP) sensor 2 to 1/ 3 -signal variation | Wiring, APP sensor, ECM |
| 28 | Transmission gear pressure switch, signal -circuit malfunction | Wiring open circuit/short circuit to ground, reverse/D1/D2/D3/D4 gear pressure switch(es), ECM |
| 29 | Glow plug relay -circuit malfunction | Wiring, glow plug relay, ECM |
| 31 | Exhaust gas recirculation (EGR) vacuuml barometric pressure (BARO) sensor -voltage low | Wiring, EGR vacuum/BARO sensor, ECM |
| 32 | Exhaust gas recirculation (EGR) system malfunction | Wiring, vacuum pipes, EGR vacuum sensor, EGR valve |
| 33 | Exhaust gas recirculation (EGR) vacuum/ barometric pressure (BARO) sensor -voltage high | Wiring, EGR vacuum/BARO sensor, ECM |
| 34 | Fuel injection timing, command/actual -signal variation | Wiring, fuel injection timing actuator, ECM |
| 35 | Fuel injection duration -pulse width signal shorter than expected | Wiring, fuel injection duration control solenoid, fuel injection pump control module, ECM |
| 36 | Fuel injection duration -pulse width signal longer than expected | Wiring, fuel injection duration control solenoid, fuel injection pump control module, ECM |
| 37 | Brake pedal position (BPP) switch -stuck ON | Wiring, BPP switch, ECM |
| 38 | Brake pedal position (BPP) switch -stuck OFF | Wiring, BPP switch, ECM |
| 39 | Brake pedal position (BPP) switch -stuck OFF | Wiring, BPP switch, ECM |
| 41 | Brake pedal position (BPP) switch, torque converter clutch (TCC) -circuit malfunction | Wiring, BPP switch, ECM |
| 42 | Fuel temperature sensor -voltage low | Wiring, fuel temperature sensor, ECM |
| 43 | Fuel temperature sensor -voltage high | Wiring, fuel temperature sensor, ECM |
| 44 | Exhaust gas recirculation (EGR) valve circuit malfunction | Wiring, fuses, EGR valve |
| 45 | Exhaust gas recirculation (EGR) vent valve circuit malfunction | Wiring, fuses, EGR vent valve |
| 46 | Malfunction indicator lamp (MIL) -circuit malfunction | Wiring, fuses, MIL |
| 47 | Intake air temperature (IAT) sensor -voltage low | Wiring short circuit to ground, IAT sensor, ECM |
| 48 | Intake air temperature (IAT) sensor -voltage high | Wiring, IAT sensor, ECM |
| 49 | Service throttle soon warning lamp -circuit malfunction | Wiring, fuses, service throttle soon warning lamp |
| 51 | Engine control module (ECM), PROM malfunction | Poor connections, incorrect programming ECM |
| 52 | System voltage -high | Alternator, jump started |
| 53 | System voltage -high | Alternator, jump started |
| 54 | Engine control module (ECM) -malfunction | Check trouble code 17, if not: replace ECM |
| 56 | Fuel injection pump calibration resistor circuit malfunction | Wiring, calibration resistor |
| 57 | Engine control module (ECM), sensor supply voltage -circuit malfunction | Wiring short to ground, poor connections, MAP sensor |
| 58 | Transmission fluid temperature (TFT) sensor -voltage low | Wiring short circuit to ground, TFT sensor, ECM |
| 59 | Transmission fluid temperature (TFT) sensor -voltage high | Wiring open circuit, TFT sensor, ECM |
| 61 | Turbocharger (TC) boost pressure sensor -voltage high | Wiring, TC boost pressure sensor, ECM |
| 62 | Turbocharger (TC) boost pressure sensor -voltage low | Wiring short circuit to ground, TC boost pressure sensor, ECM |
| 63 | Accelerator pedal position (APP) sensor 3 -voltage high | Wiring, APP sensor, ECM |
| 64 | Accelerator pedal position (APP) sensor 3 -voltage low | Wiring, APP sensor, ECM |
| 65 | Accelerator pedal position (APP) sensor 3 to 1/ 2 -signal variation | Wiring, APP sensor, ECM |
| 66 | Transmission 3rd-2nd control solenoid -circuit malfunction | Wiring, control solenoid, ECM |
| 67 | Torque converter clutch (TCC) solenoid -circuit malfunction | Wiring, TCC solenoid, ECM |
| 69 | Torque converter clutch (TCC) solenoid -stuck ON | Wiring open circuit/short circuit to ground, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM |
| 71 | Cruise control, set/coast switch -circuit malfunction | Wiring, poor connections, set/coast switch |
| 72 | Vehicle speed sensor (VSS) -loss of signal | Wiring, VSS, ECM |
| 73 | Transmission fluid pressure (TFP) control solenoid -circuit malfunction | Wiring, poor connection, TFP solenoid |
| 74 | Transmission input shaft speed sensor -circuit malfunction | Wiring, input shaft speed sensor, ECM |
| 75 | System voltage, engine control module (ECM) -low | Wiring, battery, alternator, ECM |
| 76 | Cruise control, resume/acceleration switch -circuit malfunction | Wiring, poor connections, resume/ acceleration switch |
| 78 | Turbocharger (TC) wastegate regulating valve -circuit malfunction | Wiring, TC wastegate regulating valve, ECM |
| 79 | Transmission fluid temperature (TFT) -high | Transmission mechanical fault, towing weight limit exceeded |
| 81 | Transmission shift solenoid (SS), 2nd-3rd -circuit malfunction | Wiring, SS, ECM |
| 82 | Transmission shift solenoid (SS), 1st-2nd -circuit malfunction | Wiring, SS, ECM |
| 83 | Torque converter clutch (TCC) solenoid, pulse width modulated -circuit malfunction | Wiring, TCC solenoid, ECM |
| 84 | Accelerator pedal position (APP) sensor 1/2/ 3 -intermittent circuit malfunction | Wiring, poor connections, APP sensor |
| 85 | Transmission input/output shaft speed, ratio variation -out of range | Wiring, input shaft speed sensor, output shaft speed sensor, mechanical fault |
| 86 | Transmission input/output shaft speed, ratio variation -lower than expected | Wiring, input shaft speed sensor, output shaft speed sensor, mechanical fault |
| 87 | Transmission input/output shaft speed, ratio variation -higher than expected | Wiring, input shaft speed sensor, output shaft speed sensor, mechanical fault |
| 88 | Fuel injection pump timing -out of range | Fuel injection pump timing incorrectly set |
| 91 | Power balance, cylinder 1 | Check other trouble codes, If not: mechanical fault |
| 92 | Power balance, cylinder 2 | Check other trouble codes, If not: mechanical fault |
| 93 | Power balance, cylinder 3 | Check other trouble codes, If not: mechanical fault |
| 94 | Power balance, cylinder 4 | Check other trouble codes, If not: mechanical fault |
| 95 | Power balance, cylinder 5 | Check other trouble codes, If not: mechanical fault |
| 96 | Power balance, cylinder 6 | Check other trouble codes, If not: mechanical fault |
| 97 | Power balance, cylinder 7 | Check other trouble codes, If not: mechanical fault |
| 98 | Power balance, cylinder 8 | Check other trouble codes, If not: mechanical fault |
| 99 | Accelerator pedal position (APP) sensor 2 – supply voltage low | Wiring, poor connections, APP sensor |
