P0118 LEXUS Engine Coolant Temperature Circuit High Input

Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the obd code mean? An excessively high voltage from the sensor is sent to ECM. Symptoms –…