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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 P2263-00: TC Boost Control System >> 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 AND PAST RELATED DIAGNOSTIC TROUBLE CODES 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for the following "current" and "past" "ENGINE" diagnostic trouble codes:
      • P0106-00
      • P0107-00
      • P0108-00
      • P0299-00

    Are any of the above DTCs detected?

    YES

    Perform diagnosis of applicable DTC. Refer to DTC Index .

    NO

    GO TO 2 .

  2. CHECK FOR OTHER CURRENT AND PAST RELATED DIAGNOSTIC TROUBLE CODES 

    Using CONSULT, check for the following "current" and "past" "ENGINE" diagnostic trouble codes:

    • P0102-00
    • P0103-00
    • P0104-00
    • P0111-00
    • P0112-00
    • P0113-00
    • P012B-00
    • P012C-00
    • P012D-00
    • P2280-00
    • P2580-00

    Are any of the above DTCs detected?

    YES

    Perform diagnosis of applicable DTC. Refer to DTC Index .

    NO

    GO TO 3 .

  3. CHECK FOR MORE CURRENT AND PAST RELATED DIAGNOSTIC TROUBLE CODES 

    Using CONSULT, check for the following "current" and "past" "ENGINE" diagnostic trouble codes:

    • P0471-00
    • P0472-00
    • P0473-00

    Are any of the above DTCs detected?

    YES

    Perform diagnosis of applicable DTC. Refer to DTC Index .

    NO

    GO TO 4 .

  4. CHECK FOR EGR RELATED DIAGNOSTIC TROUBLE CODES 

    Using CONSULT, check for any EGR related "current" or "past" "ENGINE" diagnostic trouble codes.

    Any EGR related DTCs detected?

    YES

    Perform diagnosis of applicable DTC. Refer to DTC Index .

    NO

    GO TO 5 .

  5. CHECK FOR TURBOCHARGER RELATED DIAGNOSTIC TROUBLE CODES 

    Using CONSULT, check for any turbocharger related "current" or "past" "ENGINE" diagnostic trouble codes.

    Any turbocharger related DTCs detected?

    YES

    Perform diagnosis of applicable DTC. Refer to DTC Index .

    NO

    GO TO 6 .

  6. INSPECT THE TURBINE BYPASS VALVE ACTUATOR LINKAGE 
    1. Turn the ignition switch OFF.
    2. Inspect the turbine bypass valve actuator linkage.

    Is the linkage missing, bent, broken, or damaged?

    YES

    • Replace the turbocharger turbine actuator linkage. Refer to Exploded View .
    • GO TO 7 .

    NO

    GO TO 7 .

  7. CHECK THE CHARGE AIR COOLER AND CHARGE AIR PLUMBING FOR LEAKS 
    1. Start the engine and let it idle.
    2. Check the charge air cooler and charge air plumbing for leaks:
      • Check the charge-air cooler connections for leaks between the turbocharger compressor outlet and the charge-air cooler.
      • Check the charge-air cooler connections between the charge-air cooler and the intake manifold.
      • Inspect the intake manifold gasket for leaks.
      • Inspect the charge-air cooler hoses for leaks or loose connections.
      • Inspect the charge-air cooler clamps to make sure they are tight.
      • Inspect the charge-air plumbing for cracks.

    Air leaks present in the charge air system?

    YES

    • Repair or replace the leaking component.
    • GO TO 10 .

    NO

    GO TO 8 .

  8. INSPECT FOR LEAKS AND RESTRICTIONS IN THE AIR INTAKE MANIFOLD AND EXHAUST SYSTEM 
    1. Turn ignition switch OFF.
    2. Check for leaks in the Air Intake and Exhaust Systems. Refer to Checking Exhaust System .
    3. Check the Air Intake for restriction. Refer to Exploded View .

    Air leaks present in the charge air system?

    YES

    • Repair or replace the leaking component.
    • GO TO 10 .

    NO

    GO TO 9 .

  9. CHECK THE EGR SYSTEM FOR LEAKS AND RESTRICTIONS 
    1. Turn ignition switch OFF.
    2. Check the EGR system plumbing for leaks and restrictions:
      • Check the exhaust transfer tubes for leaks and restrictions.
      • Check the exhaust bypass tubes for leaks and restrictions.
      • Inspect the EGR valve for restrictions.
      • Leaks can be easily noted by traces of soot.
      • Inspect the charge-air cooler clamps to make sure they are tight.
      • Inspect the charge-air plumbing for cracks.

    Leaks or restrictions present in the EGR system?

    YES

    • Repair or replace the malfunctioning component.
    • GO TO 10 .

    NO

    GO TO 10 .

  10. VERIFY THE COMPRESSOR BYPASS VALVE ACTUATOR 
    1. Turn ignition switch ON.
    2. Verify compressor bypass valve actuator:
      • Use a hand pump to provide vacuum to the actuator.
      • Verify that the compressor bypass valve moves to both linkage stops. Refer to Exploded View .

    Compressor bypass valve linkage moves from stop to stop?

    YES

    • Inspect the compressor bypass valve for proper operation. If the compressor bypass valve functions properly, replace the compressor bypass valve actuator. Refer to Removal and Installation .
    • GO TO 11 .

    NO

    GO TO 11 .

  11. ERASE DTC. 
    1. Connect all components.
    2. Turn ignition switch ON.
    3. With CONSULT, erase all DTCs.
    4. Operate the engine within the conditions for setting DTC found in the DTC description.
    5. Check for existing "ENGINE" diagnostic trouble codes.

    Did the P2263-00 DTC return?

    YES

    Troubleshooting procedure needs to be repeated. Go to DTC Description .

    NO

    Repair complete.

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