Engine Coolant Temperature Sensor (ECTS) : Description
Engine Coolant Temperature Sensor (ECTS) installed in the engine coolant passage of the cylinder head detects the engine coolant temperature and emits signals to the ECM. This part employs a thermistor which is sensitive to changes in temperature. The electric resistance of the thermistor decreases in response to a temperature rise (NTC). The ECM determines engine coolant temperature by the sensor output voltage and provides optimum fuel enrichment when the engine is cold.