Sonata GLS V6-2.5L (2000)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
The engine coolant temperature sensor is installed in the engine coolant passage of the cylinder head, detects 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 a thermistor decreases in
response to temperature rise. The ECM judges engine coolant temperature by the sensor output voltage and provides optimum fuel enrichment when the
engine is cold.
Circuit Diagram
SENSOR CHECKING