Engine Coolant Temperature Sensor: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Fig 1: Resistance & Temperature Graph

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Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

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

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

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

HINT:

If the result is as specified, do not replace the engine coolant temperature sensor.