Engine Coolant Temperature Sensor: Inspection: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Measure the resistance between the terminals.

Fig 1: Measuring Resistance Between Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance

Condition	Specified Condition
Approx. 20°C (68°F)	2.32 to 2.59 kΩ
Approx. 80°C (176°F)	0.31 to 0.326 kΩ

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

NOTE: If checking the ECT sensor in the water, keep the terminals dry. After checking, dry the sensor.