Engine Coolant Temperature Sensor: Inspection: Inspection

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Fig 1: Inspecting Engine Coolant Temperature Sensor With Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Component without harness connected (Engine Coolant Temperature Sensor)	*b	Temperature °C (°F)
*c	Resistance Ω	*d	Acceptable

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

Standard Resistance

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

NOTE:

When checking the 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.