DTC Confirmation Procedure

CHECK DTC PRIORITY
If DTC P0116 is displayed with DTC P0117, or P0118, first perform the confirmation procedure for DTC P0117, or P0118.

Is applicable DTC detected?

YES: Perform diagnosis of applicable.
- DTC P0117: Refer to "DTC DESCRIPTION ".
- DTC P0118: Refer to "DTC DESCRIPTION ".
NO: GO TO 2.
INSPECTION START
Is it necessary to erase permanent DTC?

YES: GO TO 4.

NO: GO TO 3.

PERFORM COMPONENT FUNCTION CHECK

NOTE: Use the component function check to check the overall function of the ECT sensor circuit. During this check, a 1st trip DTC might not be confirmed.

Turn ignition switch OFF.
Disconnect ECT sensor harness connector.
Remove ECT sensor. Refer to "EXPLODED VIEW ".

Check resistance between ECT sensor terminals by heating with hot water as shown in the figure below.

Terminals	Condition		Resistance (kΩ)
1 and 2	Temperature [°C (°F)]	20 (68)	2.10 - 2.90
		50 (122)	0.68 - 1.00
		90 (194)	0.236 - 0.260

Fig 1: Checking Resistance Between Engine Coolant Temperature Sensor Terminals

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES-1: To check malfunction symptom before repair: Refer to "INTERMITTENT INCIDENT ".

YES-2: Confirmation after repair: INSPECTION END

NO: Proceed to "DIAGNOSIS PROCEDURE ".

PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
  TEST 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 5.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 60 minutes.
2. Move the vehicle to a cool place.
  NOTE: Cool the vehicle in an environment of ambient air temperature between -10°C (14°F) and 35°C (95°F).
3. Turn ignition switch OFF and soak the vehicle for 12 hours.
  CAUTION: Never turn ignition switch ON during soaking.
  
  NOTE: The vehicle must be cooled with the food open.
4. Start engine and let it idle for 5 minutes or more.
  CAUTION: Never turn ignition switch OFF during idling.
5. Check 1st trip DTC.
  Is 1st trip DTC detected?
  
  YES: Proceed to "DIAGNOSIS PROCEDURE ".
  
  NO: INSPECTION END