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