TROUBLE CODE DEFINITION
| Code No. | Circuit Affected |
|---|
| 12 (1) | No RPM Reference Pulse |
| 14 | Coolant Temperature High |
| 15 | Coolant Temperature Low |
| 21 | Throttle Position Switch Voltage High |
| 22 | Throttle Position Switch Voltage Low |
| 24 | Output Speed Sensor Circuit |
| 28 | Pressure Switch Manifold Problem |
| 53 | System Voltage Too High |
| 39 | (2) TCC Problem |
| 58 | Transmission Temperature High |
| 59 | Transmission Temperature Low |
| 68 | Overdrive Ratio Error Problem |
| 73 | Force Motor Current Problem |
| 75 | System Voltage Too Low |
| 81 | Shift Solenoid "B" Circuit Error |
| 82 | Shift Solenoid "A" Circuit Error |
| 83 | TCC Solenoid Circuit Error |
| 85 | Undefined Ratio Error Problem |
| 86 | Low Ratio Error Problem |
| 87 | High Ratio Error Problem |
| (1) Display of a Code 12 is normal when no reference pulses are received by control module (engine not running). (2) Code 39 indicates TCC problem may be present. For complete information, see GM TORQUE CONVERTER CLUTCH article. |
| (1) | Display of a Code 12 is normal when no reference pulses are received by control module (engine not running). |
| (2) | Code 39 indicates TCC problem may be present. For complete information, see GM TORQUE CONVERTER CLUTCH article. |
PCM/TCM TROUBLE CODE DEFINITION
Note. Only transmission-related trouble codes are listed. If other trouble codes are present, see appropriate article in the ENGINE PERFORMANCE section.
