Engine Coolant Temperature Sensor: Inspection

INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR

Check the resistance.

Using an ohmmeter, measure the resistance between the terminals.

Standard

TESTER CONNECTIONS AND SPECIFIED CONDITION TABLE

Tester Connection	Specified Condition
1 (E2) - 2 (THW)	2.32 to 2.59 kΩ at 20°C (68°F)
1 (E2) - 2 (THW)	0.310 to 0.326 kΩ at 80°C (176°F)

NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. After checking, wipe the water off the engine coolant temperature sensor.

Fig 1: Inspecting E.F.I. Engine Coolant Temperature Sensor

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