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Home >> Nissan-Datsun >> 2008 >> Altima Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Hybrid) >> Component Diagnosis >> P1572 ASCD Brake Switch >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following 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.

      TESTING CONDITION: 

      This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If this test is conducted with the drive wheels lifted, activate  "INSPECTION MODE 1 " . If a road test is expected to be easier, it is unnecessary to lift up the vehicle. 

      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 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
    1. Turn ignition switch ON (READY).
    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 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 SPECIFICATION

      VHCL SPEED SE More than 30 km/h (19 mph)
      Shift lever Suitable position
    4. Check 1st trip DTC.

    Is 1st trip DTC detected? 

    YES : Go to "DIAGNOSIS PROCEDURE ".

    NO : GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
    1. Turn ignition ON (READY) and 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 AND SELECTOR LEVER POSITION REFERENCE

      VHCL SPEED SE 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 1st trip DTC.

    Is 1st trip DTC detected? 

    YES : Go to "DIAGNOSIS PROCEDURE ".

    NO : INSPECTION END

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