Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection

CAUTION: Be careful not to touch the tool against the connector (resin section) when removing and installing.

1. Remove engine coolant temperature sensor from the intake manifold.





2. With temperature sensing portion of engine coolant temperature sensor immersed in hot water, check resistance.

Temperature [°C (°F)] Resistance (K ohms)

0 (32) 5.1 - 6.5
20 (68) 2.1 - 2.7
40 (104) 0.9 - 1.3
80 (176) 0.26 - 0.36

3. If the resistance deviates from the standard value greatly, replace the sensor.