Engine Controls - Tests W/Codes: Summary
If no hard fault codes (or only pass codes) are present, driveability symptoms exist or intermittent codes exist, proceed to TESTS W/O CODES
article in the ENGINE PERFORMANCE Section for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.
TROUBLE CODE IDENTIFICATION
| Code |
System Affected |
Probable Cause |
| 0 |
ECU |
No Signal to ECU |
| 1 |
O2 Sensor |
O2 Sensor Circuit Problem |
| 3 |
MAP Sensor |
MAP Sensor Problem |
| 4 |
Crank Angle |
Open/Shorted Signal Circuit |
| 5 |
MAP Sensor |
Open/Shorted Signal Circuit |
| 6 |
Coolant Temperature Sensor |
Open/Shorted Signal Circuit |
| 7 |
Throttle Angle Sensor |
Open/Shorted Signal Circuit |
| 8 |
Crank Angle Sensor (TDC) |
Open/Shorted Signal Circuit |
| 9 |
Crank Angle Sensor (CYL) |
Open/Shorted Signal Circuit |
| 10 |
Intake Air Temperature |
Problem w/Sensor |
| 12 |
EGR System |
Faulty EGR Valve (A/T) |
| 13 |
Atmospheric Pressure (PA) |
PA Circuit Problem |
| 14 |
Elecronic Air Control Valve (EACV) |
Open/Shorted Signal Circuit |
| 15 |
Ignition Output Signal |
Open/Shorted Signal Circuit |
| 16 |
Fuel Injector |
Open/Shorted Signal Circuit |
| 17 |
Vehicle Speed Sensor (VSS) |
Open/Shorted Signal Circuit |
| 43 |
Fuel Supply System |
Open/Shorted O2 Circuit |