Engine Coolant Temperature Sensor: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITIONS 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 engine coolant temperature sensor.

Fig 1: Measuring Resistance Between Engine Coolant Temperature Sensor Terminals