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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (3 Of 4)) >> DTC/Circuit Diagnosis >> P1572 ASCD Brake Switch >> DTC Description >> PR25DD engine >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC PRIORITY 

    If DTC P1572 is displayed with DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Index .

    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: Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for malfunction B. By performing procedure for malfunction A, the incident that causes malfunction B can be detected.

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A 
    1. Start engine.
    2. Press MAIN switch and make sure that CRUISE indicator is displayed in combination meter.
    3. Drive the vehicle for at least 5 consecutive seconds as per 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 detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    GO TO 4.

  4. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B 
    1. Drive the vehicle for at least 5 consecutive seconds as per 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 five seconds so as not to come off from the above-mentioned vehicle speed.
    2. Check DTC.

    Is DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END

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