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. Are any of the following displayed as current or have high past counts on the CONSULT screen.
  - P009C-00
  - P009D-00
  - P009E-00
  - P0191-00
  - P0252-00
  - P0253-00
  - P0254-00
  - P0628-00
  - P0629-00
  - P2540-00
Is applicable DTC detected?

YES

Refer to DTC Index .

NO

GO TO 2 .

CHECK THE LIFT PUMP

Turn ignition switch ON.
Connect CONSULT and select "Data Monitor" mode.
Select "FUEL SUPPLY PRESSURE" and check the indication within 30 seconds.

Check fuel supply pressure in Freeze Frame Data.

Monitor item	Condition	Indication
FUEL SUPPLY PRESSURE	Ignition switch ON (Engine stopped.)	> 7 bar (102 psi)

Is the inspection result normal?

YES

Replace lift pump. Refer to Removal and Installation .

GO TO 3 .

CHECK THE FUEL PUMP ACTUATOR AND PRESSURE RELIEF VALVE
1. Turn ignition switch ON.
2. Using CONSULT, perform High-Pressure Fuel System Actuator Override test.
Are actuators within specifications?

YES

GO TO 4 .

NO

Repair or replace error detected parts. Refer to Removal and Installation or Removal and Installation .
ERASE DTC
1. Connect all components.
2. Turn ignition switch ON.
3. Using CONSULT erase ENGINE diagnostic trouble codes.
4. Perform DTC CONFIRMATION PROCEDURE.
Is P0088-00 DTC current?

YES

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

NO

Repair complete.