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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P2262-00: TC Boost Pressure Not Detected >> 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 FOR CURRENT DTC 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check "ENGINE" diagnostic trouble codes.
    3. Check for DTC P2262-00 being current on the CONSULT screen.

    Is applicable DTC detected?

    YES

    GO TO 2 .

    NO

    Refer to Intermittent Incident .

  2. CHECK THE TURBOCHARGER ROTARY TURBINE CONTROL VALVE ACTUATOR AND CONNECTOR PINS 
    1. Turn ignition switch OFF.
    2. Disconnect the rotary turbine control valve actuator connector F146.
    3. Inspect the harness and actuator 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.
    • Replace the rotary turbine control valve actuator. Refer to Exploded View .
  3. RUN THE TURBINE BYPASS VALVE ACTUATOR HYSTERESIS TEST 
    1. Reconnect the rotary turbine control valve actuator connector F146.
    2. Turn ignition switch ON.
    3. Check the rotary turbine control valve actuator operation.
    4. Using CONSULT, connect to ENGINE and perform the "RTCV Hysteresis Test" Active Test.

    Did the RTCV Hysteresis test pass?

    YES

    GO TO 5 .

    NO

    GO TO 4 .

  4. INSPECT THE ROTARY TURBINE CONTROL VALVE ACTUATOR LINKAGE 
    CAUTION: If the rotary turbine control valve linkage is only removed from the actuator side, the rotary turbine control valve linkage can be reattached to the actuator and reused. If the rotary turbine control valve linkage is removed from the turbine valve shaft, the rotary turbine control valve linkage must be replaced.
    1. Disconnect the rotary turbine control valve actuator linkage from the actuator side only for this test unless damage is noted to lower portion of linkage.
    2. Inspect the rotary turbine control valve actuator linkage.

    Is the linkage bent, broken, or damaged?

    YES

    Replace the rotary turbine control valve actuator linkage. Refer to Exploded View .

    NO

    GO TO 5 .

  5. RUN THE ROTARY TURBINE CONTROL VALVE ACTUATOR HYSTERESIS TEST WITH LINKAGE REMOVED 

    Using CONSULT, connect to ENGINE and perform the "RTCV Hysteresis Test" Active Test.

    Did the RTCV Hysteresis test pass?

    YES

    GO TO 6 .

    NO

    Replace the rotary turbine control valve actuator. Refer to Exploded View .

  6. RUN THE ROTARY TURBINE CONTROL VALVE ACTUATOR CALIBRATION 
    1. Reconnect the rotary turbine control valve actuator linkage at the actuator side.
    2. Using CONSULT, connect to "ENGINE" and perform the "RTCV actuator calibrate" under Work Support.

    RTCV actuator calibration process completed successfully?

    YES

    GO TO 7 .

    NO

    Replace the rotary turbine control valve actuator. Refer to Exploded View .

  7. TEST DRIVE THE VEHICLE 
    1. Turn ignition switch OFF.
    2. Connect all harness connectors.
    3. Turn ignition switch ON.
    4. Using CONSULT erase "ENGINE" diagnostic trouble codes.
    5. Start the engine and operate under normal driving conditions for at least 15 minutes.
    6. Using CONSULT, check for "ENGINE" diagnostic trouble codes.

    Is P2262-00 DTC current?

    YES

    A turbocharger mechanical malfunction has been detected. Replace the turbocharger assembly. Refer to Exploded View .

    NO

    GO TO 8 .

  8. CHECK FOR PROGRESSIVE DAMAGE TO THE AFTER TREATMENT SYSTEM 

    Perform the following snap acceleration test:

    1. Engage the parking brakes
    2. Place the shift lever in neutral.
    3. start the engine and let it idle to reach normal operating temperature.
    4. Rapidly depress the accelerator pedal from 0 to 100% multiple times.
    5. Check for black smoke exiting the exhaust as the engine accelerated from low to high idle.
      NOTE: If there is a heavy build up of exhaust residue, and a snap acceleration does not reveal the condition outlined, perform a brief acceleration under partial or full load. White smoke due to condensation in the exhaust system is permissible.

    Was visible black or grey smoke seen from the exhaust?

    YES

    Replace the damaged after treatment system. Refer to Removal and Installation .

    NO

    GO TO 9 .

  9. ERASE CURRENT DTC 
    1. Turn ignition switch ON (engine OFF).
    2. Using CONSULT erase "ENGINE" diagnostic trouble codes.
    3. Operate the engine within the "Conditions for setting the DTC".
    4. Using CONSULT, check for "ENGINE" diagnostic trouble codes.

    Is P2262-00 DTC current?

    YES

    Return to Diagnosis Procedure. Refer to DTC Description .

    NO

    Repair complete.