Component Inspection (Engine Coolant Temperature Sensor)

1. Turn ignition switch OFF.
2. Disconnect engine coolant temperature sensor harness connector.
3. Remove engine coolant temperature sensor.
4. Check resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the figure.

Fig 1: Checking Engine Coolant Temperature Sensor

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal? 

YES: INSPECTION END

NO: Replace engine coolant temperature sensor. Refer to "EXPLODED VIEW ".