Engine Coolant Temperature Sensor: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Using an ohmmeter, measure the resistance between the terminals.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

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

Fig 1: Temperature And Resistance Graph

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

NOTE: In case of checking the engine coolant temperature sensor in water, do not allow water to go into the terminals. After checking, dry the engine coolant temperature sensor.