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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 211 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P00AF-00: Boost Pressure Control >> Diagnosis Procedure

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.
  1. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for "ENGINE" diagnostic trouble codes.
    3. Check for DTC P00AF-00 being current on the CONSULT screen.

    Is DTC P00AF-00 detected as current?

    YES

    GO TO 2 .

    NO

    Refer to Intermittent Incident .

  2. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for "ENGINE" diagnostic trouble codes.
    3. Check for DTC U010C-00 or P0687-00 being current on the CONSULT screen.

    Is applicable DTC detected as current?

    YES

    Refer to DTC Index .

    NO

    GO TO 3 .

  3. INSPECT ROTARY TURBINE CONTROL VALVE ACTUATOR AND CONNECTOR PINS 
    1. Turn ignition switch OFF.
    2. Disconnect rotary turbine control valve actuator harness connector F146.
    3. Inspect the harness connector and rotary turbine control valve actuator 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

    Replace the rotary turbine control valve actuator. Refer to Removal and Installation . GO TO 4.

    NO

    Repair or replace error-detected parts.

  4. CHECK FOR PROGRESSIVE DAMAGE TO AFTER TREATMENT SYSTEM 

    Perform the after treatment initial check procedure to test for a damaged DPF

    Is the inspection result normal?

    YES

    Check for active aftertreatment-related DTCs. Refer to DTC Index .

    NO

    Replace the damaged after treatment component.