Possible Causes
| Possible Causes |
|---|
| OPEN POWER CONTROL RELAY FUSE (150A) IN THE FUSE ARRAY |
| PCR CONTROL RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE |
| POOR CONNECTION AT THE AUXILIARY BATTERY POSITIVE OR NEGATIVE CABLE ENDS |
| HIGH RESISTANCE IN THE AUXILIARY BATTERY POSITIVE CABLE |
| HIGH RESISTANCE IN THE AUXILIARY BATTERY GROUND CABLE OR GROUND LOCATION |
| HIGH RESISTANCE IN THE FUSED B+ CIRCUIT TO THE PCM |
| PCR CONTROL RELAY IS STUCK ON |
| POWER CONTROL RELAY (PCR) STUCK ON (OPEN) |
| FAULTY AUXILIARY BATTERY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .