Possible Causes
| Possible Causes |
|---|
| FUSED B+ CIRCUIT OPEN/HIGH RESISTANCE |
| LIN BUS CIRCUIT SHORTED TO VOLTAGE |
| LIN BUS CIRCUIT SHORTED TO GROUND |
| LIN BUS CIRCUIT OPEN/HIGH RESISTANCE |
| WATER PUMP RELAY OUTPUT CIRCUIT OPEN/HIGH RESISTANCE |
| CAC COOLANT PUMP GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| WATER PUMP RELAY |
| CHARGE AIR COOLER COOLANT PUMP |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .