Diagnostic Test

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

   Courtesy of NISSAN NORTH AMERICA, INC.

   Engine coolant temperature sensor 1		Condition		Resistance (kΩ)
   +	-
   Terminal
   1	2	Temperature [°C (°F)]	20 (68)	2.35 - 2.73
   			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 1. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .