Component Inspection

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.
   TERMINALS RESISTANCE REFERENCE
   
   

   Terminals	Condition		Resistance
   1 and 2	Temperature °C (°F)	20 (68)	2.37 - 2.63 kΩ
   		50 (122)	0.68 - 1.00 kΩ
   		90 (194)	0.236 - 0.260 kΩ

   Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: INSPECTION END

NO: Replace engine coolant temperature sensor.