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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (4 Of 6)) >> DTC/Circuit Diagnosis >> DTC P1644-00: Incorrect Variant/Configuration >> DTC Confirmation Procedure

DTC Confirmation 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. PERFORM DTC CONFIRMATION PROCEDURE 

    If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test:

    1. Start the vehicle and accelerate to 90 km/h (56 MPH), then release the accelerator pedal and keep it released for more than 10 seconds.
      CAUTION: Always drive vehicle at safe speed.
    2. Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH) again.
    NOTE:
    • Checking the vehicle speed with GST is advised.
    • When steady-state driving is performed again even after it is interrupted, each diagnosis can be conducted. In this case, the time required for diagnosis may be extended.

    Is 1st trip P1644-00 DTC detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

    Inspection End.

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