Ford P0118 OBD-II Trouble Code Definition: P0118 Engine Coolant Temperature Sensor Circuit High P0118 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0118 Engine Coolant Temperature Circuit High What does the code mean? OBD-ii Code P0118 definition: The engine coolant temperature (ECT) sensor is a thermistor screwed into a coolant passage in the cylinder head. Sensor resistance […]