Diagnostic Test

1. Turn Ignition Switch OFF.
2. Disconnect Engine Coolant Temperature Sensor harness connector.
3. Remove Engine Coolant Temperature Sensor. Refer to REMOVAL AND INSTALLATION .
4. Check resistance between Engine Coolant Temperature Sensor terminals by heating with hot water as shown in the figure, below.

   Courtesy of NISSAN NORTH AMERICA, INC.

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

Is the inspection result normal?

YES 

INSPECTION END

NO 

Replace Engine Coolant Temperature Sensor. Refer to REMOVAL AND INSTALLATION .