Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC PRIORITY
1. Turn ignition switch ON.
2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
3. Check for DTC P02F5-00 being current on the CONSULT screen.
Is applicable DTC detected?

YES

GO TO 2 .

NO

Refer to Intermittent Incident .
INSPECT FUEL INJECTOR CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect injector 8 from engine harness connector F135.
3. Inspect the harness and connector pins for the following:
  - Loose connector
  - Corroded pins
  - Bent or broken pins
  - Pushed back or expanded pins
  - Moisture in or on the connector
  - Missing or damaged connector seals
  - Dirt or debris on or in the connector pins
  - Connector shell broken
  - Wire insulation damage
  - Damaged connector locking tab
Is the inspection result normal?

YES

GO TO 3 .

NO

Repair or replace error-detected parts.
INSPECT ECM AND ENGINE HARNESS CONNECTOR PINS
1. Turn ignition switch OFF.
2. Disconnect ECM from engine harness connector F101.
3. Inspect the ECM connector pins for the following:
  - Loose connector
  - Corroded pins
  - Bent or broken pins
  - Pushed back or expanded pins
  - Moisture in or on the connector
  - Missing or damaged connector seals
  - Dirt or debris on or in the connector pins
  - Connector shell broken
  - Wire insulation damage
  - Damaged connector locking tab
Is the inspection result normal?

YES

GO TO 4 .

NO

Repair or replace error-detected parts.

CHECK FOR SHORT CIRCUIT IN THE ENGINE HARNESS

Turn ignition switch OFF.
Disconnect the injector 8 from the engine harness connector F135.
Disconnect the engine harness from the ECM connector F101.

Measure the resistance between the injector 1 RETURN terminal 93 and all other pins in the engine harness ECM connector F101.

ECM		ECM		Resistance
Connector	Terminal	Connector	Terminal	Resistance
F101	93	F101	All	> 100k Ω

Is resistance greater than 100k ohms?

YES

GO TO 5 .

Repair or replace the engine harness for a short.

CHECK FOR PAST DTC
1. Connect all components.
2. Turn ignition switch ON and wait 30 seconds.
3. Connect CONSULT and check for past ENGINE diagnostic trouble codes.
Is P02F5-00 DTC past?

YES

GO TO 6 .

NO

Replace the injector. Refer to Removal and Installation (CYLINDER 6 and CYLINDER 8) .
ERASE DTC
1. Connect all components.
2. Turn ignition switch ON.
3. Using CONSULT erase ENGINE diagnostic trouble codes.
Is P02F5-00 DTC current?

YES

Return to the diagnosis procedure steps if all steps have been completed and checked again.

NO

Repair complete.