Possible Causes
| POSSIBLE CAUSES |
|---|
| ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO VOLTAGE |
| ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO GROUND |
| ALTERNATOR FIELD CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| POOR ENGINE BLOCK OR ALTERNATOR CASE GROUND |
| ALTERNATOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .