Engine Coolant Temperature Sensor: Inspection

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INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Measure the resistance of the sensor.

Fig 1: Inspecting Engine Coolant Temperature Sensor

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Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1 (E2) - 2 (THW)	20°C (68°F)	2.32 to 2.59 kΩ
1 (E2) - 2 (THW)	80°C (176°F)	0.310 to 0.326 kΩ

NOTE: If checking the sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the sensor.

If the result is not as specified, replace the sensor.