OBD codes / P0117
P0117
ModerateEngine Coolant Temperature (ECT) Sensor Circuit Low
Get it looked at soon to avoid further wear.
Likely causes
- faulty ECT sensor
- wiring short to ground
- connector fault
Common fixes
- replace the ECT sensor
- inspect the wiring and connector
Seeing P0117 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0117 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.