Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

COMPONENT INSPECTION
Engine coolant temperature sensor





Check resistance as shown in the figure above.






Temperature °C (°F) / Resistance K Ohms
20(68) / 2.1 - 2.9
50(122) / 0.68-1.00
90(194) / 0.236 - 0.260

If NG, replace engine coolant temperature sensor.