Possible Causes
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| LOW COOLANT LEVEL |
| THERMOSTAT |
| COOLING SYSTEM RESTRICTION OR POOR FLOW |
| HIGH RESISTANCE IN THE ECT 1 SENSOR SIGNAL CIRCUIT |
| HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT |
| ENGINE COOLANT TEMPERATURE (ECT) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .