Trouble Code Identification
TROUBLE CODE IDENTIFICATION
| Code | Circuit Affected | Probable Cause |
|---|---|---|
| 11 | Crank Angle Sensor | No Reference Signal |
| 12 | Starter Switch | Open/Short Circuit |
| 13 | Cam Angle Sensor | No Reference Signal |
| 14 | Fuel Injectors 1 & 2 | Abnormal Injector Output |
| 15 | Fuel Injectors 3 & 4 | Abnormal Injector Output |
| 21 | Coolant Temperature Sensor | Open/Short Circuit |
| 22 | Knock Sensor | Open/Short Circuit |
| 23 | Airflow Meter Circuit | Open/Short Circuit |
| 31 | Throttle Position Sensor | Open/Short Circuit |
| 32 | Oxygen (O2) Sensor | Abnormal Sensor Signal |
| 33 | Vehicle Speed Sensor | No Reference Signal |
| 35 | Purge Control Solenoid Valve | Open/Short Circuit |
| 36 | Ignitor Circuit (1990 Only) | Open/Short Circuit |
| 41 | System Too Lean | Check Fuel Pressure Or Vacuum Leak |
| 42 | Idle Switch | Abnormal Reference Signal |
| 44 | Wastegate Duty Solenoid (Turbo) | Open/Short Circuit |