Possible Causes
WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| ALTERNATOR FIELD CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| ALTERNATOR FIELD CONTROL CIRCUIT SHORTED TO GROUND |
| 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 .