Possible Causes
| Possible Causes |
|---|
| ECT SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| ECT SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| ENGINE COOLANT TEMPERATURE (ECT) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .