Trouble Code Definition
ECM/PCM TROUBLE CODE DEFINITION
| Code No. | Circuit Affected |
|---|---|
| 12 | No RPM Reference Pulse |
| 13 | Open Oxygen (O2) Sensor Circuit |
| 14 | CTS Signal Voltage Low |
| 15 | CTS Signal Voltage High |
| 16 | System Voltage Hig/Low |
| 17 | RPM Signal Problem |
| 21 | TPS Signal Voltage High |
| 22 | TPS Signal Voltage Low |
| 23 | MAT Sensor Signal Voltage High |
| 24 | Vehicle Speed Sensor Circuit |
| 25 | MAT Sensor Signal Voltage Low |
| 26 | Quad-Driver Error |
| 27, 28 & 29 | Gear Switch Problem |
| 31 | Park/Neutral Switch |
| 34 | MAF Sensor Signal Voltage Low |
| 35 | IAC Idle Speed Error |
| 36 | Transaxle Shift Circuit |
| 38 | Brake Switch |
| 39 | TCC |
| 41 | Cam Sensor Circuit |
| 42 | EST Circuit Open Or Grounded |
| 43 | ESC Error |
| 44 | Lean Exhaust Indication |
| 45 | Rich Exhaust Indication |
| 47 | ECM/BCM Communications Failure (Toronado/Trofeo) |
| 48 | Misfire Diagnosis |
| 51 | Faulty PROM, MEM-CAL Or ECM/PCM |
| 52 | Faulty/Missing CAL-PAC Or MEM-CAL |
| 54 | EGR Solenoid No. 2 Failure (VIN 1) |
| 55 | ECM/PCM Error EGR Solenoid No. 3 Failure (VIN 1) |
| 56 | Quad-Driver "B" Fault (VIN 1) |
| 57 | Boost Control Problem (VIN 1) |
| 58 | Anti-Theft System Fault |
| 61 | Cruise Vent Solenoid |
| 62 | Cruise Vacuum Solenoid |
| 65 | Cruise Servo Position |
| 67 | Cruise Engage Switches |
| 68 | Cruise System Problem |
NOTE:
Use trouble code charts only if SERVICE ENGINE SOON light is illuminated (indicating a current problem exists). Exceptions are Code 13, 15, 24, 44 and 45 charts, which may be used to help diagnose intermittent codes. Anytime control module-related Codes 51, 52 or 55 are displayed with another code, start with 50-series code, and then proceed to lower numbered codes.