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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 619 (Engine Control System (DTC/Circuit Diagnosis) (12 Of 17)) >> DTC/Circuit Diagnosis >> DTC P1572: Brake Pedal Position Switch >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC PRIORITY 

    If DTC P1572 is displayed with DTC P0605, first perform the confirmation procedure (trouble diagnosis) for DTC P0605.

    Is DTC P0605 detected?

    YES

    Perform diagnosis for P0605. Refer to DTC Description .

    NO

    GO TO 2.

  2. PRECONDITIONING 

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.
    NOTE: The procedure for malfunction B is not described. It takes an extremely long time to complete the procedure for malfunction B. By performing the procedure for malfunction A, the condition that causes malfunction B can be detected.

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A 
    1. Start engine (VDC switch OFF).
    2. Press MAIN switch and make sure that CRUISE lamp illuminates.
    3. Drive the vehicle for at least 5 consecutive seconds under the following conditions.
      CAUTION: Always drive vehicle at a safe speed.
      NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

      Vehicle speed

      More than 30 km/h (19 mph)

      Selector lever

      Suitable position
    4. Check DTC.

    Is DTC P1572 detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

    GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Drive the vehicle for at least 5 consecutive seconds under the following conditions.
      CAUTION: Always drive vehicle at a safe speed.
      NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

      Vehicle speed

      More than 30 km/h (19 mph)

      Selector lever

      Suitable position

      Driving location

      Depress the brake pedal for more than 5 seconds so as not to come off from the above-mentioned vehicle speed.
    2. Check DTC.

    Is DTC P1572 detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Intermittent Incident .

    NO

    Confirmation after repair: INSPECTION END

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