Engine Coolant Temperature Sensor: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Partially soak the sensor in water and warm up the water.

Fig 1: Inserting Engine Coolant Temperature Sensor
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Measure the resistance between the terminals.

Standard resistance

STANDARD RESISTANCE SPECIFICATIONS

Condition	Specified Condition
Approx. 20°C (68°F)	2.32 to 2.59 kΩ
Approx. 80°C (176°F)	0.310 to 0.326 kΩ

NOTE: When checking the sensor in water, keep the terminals dry. After the check, wipe the sensor dry.

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