Confirmation Procedure

Is it necessary to erase permanent DTC?

YES

GO TO 3.

NO

GO TO 2.

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

   Courtesy of NISSAN NORTH AMERICA, INC.

   ECT sensor		Condition		Resistance
   Terminal
   1	2	Temperature [ deg.C (deg.F)]	20 (68)	2.1 - 2.9 kOhm
   			50 (122)	0.68 - 1.00 kOhm
   			90 (194)	0.236 - 0.260 kOhm

Is the inspection result normal?

YES

To check malfunction symptom before repair: Refer to Inspection .

YES

Confirmation after repair: INSPECTION END

NO

Refer to DTC Diagnosis Procedure .

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

• Before performing the following procedure, do not add fuel.
• Before performing the following procedure, check that fuel level is between 1/4 and 4/4.
• Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

GO TO 4.

1. Move the vehicle to a cool place.
   NOTE: Cool the vehicle in an environment of ambient air temperature between -10 deg.C (14 deg.F) and 35 deg.C (95 deg.F).
2. Turn ignition switch OFF and leave the vehicle for 12 hours.
   CAUTION: Never turn ignition switch ON during this procedure.
   NOTE: The vehicle must be cooled with the hood open.
3. Start the engine and let it idle for 20 minutes or more.
   CAUTION: Never turn ignition switch OFF during idling.
4. Check 1st trip DTC.

Is 1st trip DTC detected?

YES

Refer to DTC Diagnosis Procedure .

NO

To check malfunction symptom before repair: Refer to Inspection .

NO

Confirmation after repair: INSPECTION END