Engine Coolant Temperature Sensor: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

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

Fig 1: Measuring Resistance Between Engine Coolant Temperature Sensor Terminals
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Measure the resistance between the terminals.

Standard resistance

TERMINALS RESISTANCE REFERENCE

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

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

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