Ford P0115 OBD-II Trouble Code Definition: P0115 Engine Coolant Temperature Sensor Performance P0115 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0115 Engine Coolant Temperature Circuit What does the code mean? OBD-ii Code P0115 definition: The ECT (Engine coolant temperature) sensor is basically a thermistor that changes resistance with temperature. Usually a two wire sensor, a 5Volt […]