Possible Causes
| POSSIBLE CAUSES |
|---|
| BELT AND TENSIONER |
| ALTERNATOR MECHANICAL FAILURE |
| DEFECTIVE BATTERY |
| RESISTANCE IN THE BATTERY POSITIVE CABLE OR END |
| RESISTANCE IN THE BATTERY NEGATIVE CABLE OR END |
| POOR GROUND CONNECTION AT THE ENGINE BLOCK OR BODY CONNECTIONS |
| FUSED B+ CIRCUIT HIGH RESISTANCE |
| PCM POWERS AND GROUNDS |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .