Component Function Check

1. Turn ignition switch OFF.
2. Disconnect ECT sensor harness connector.
3. Remove ECT sensor. Refer to "VQ37VHR : EXPLODED VIEW ".
4. Check resistance between ECT sensor terminals by heating with hot water as shown in the figure.
   TERMINALS RESISTANCE REFERENCE CHART
   
   

   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: GO TO 2.

   NO: Proceed to "DIAGNOSIS PROCEDURE ".

   Fig 1: Checking Resistance Between ECT Sensor Terminals By Heating With Hot Water

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

Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

Is the inspection result normal? 

YES: INSPECTION END

NO: Proceed to "DIAGNOSIS PROCEDURE ".