Inspection [08/2015 - ]: Procedure

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Partially immerse the engine coolant temperature sensor in water and warm up the water.

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Component without harness connected (Engine Coolant Temperature Sensor)

Standard Resistance

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

NOTE:

When checking the engine coolant temperature sensor in water, keep the terminals dry. After the check, wipe the sensor dry.

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