Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| COOLANT CONTROL VALVE POSITION SIGNAL CIRCUIT SHORTED TO GROUND |
| COOLANT CONTROL VALVE POSITION SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND |
| COOLANT CONTROL VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .