When Monitored And Set Conditions
WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic runs continuously when the following conditions are met:
- With the engine running.
- Battery voltage greater than 10.4 volts.
Set Conditions:
- The Powertrain Control Module (PCM) attempts to regulate the Alternator field with no result during monitoring.
Default Actions:
- The MIL light will illuminate.
- If the vehicle is equipped with the stop/start feature, the system will be disabled when this DTC is active.
| 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 .