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Home >> Infiniti >> 2005 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1572: ASCD Brake Switch >> Component Inspection >> ASCD Brake Switch
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ASCD Brake Switch

  1. Turn ignition switch OFF.
  2. Disconnect ASCD brake switch harness connector.
  3. Check harness continuity between ASCD brake switch terminals 1 and 2 under the following conditions.
    ASCD BRAKE SWITCH TERMINALS CONTINUITY

    Condition Continuity
    Brake pedal: Fully released Should exist.
    Brake pedal: Slightly depressed Should not exist.
    Fig 1: Checking Harness Continuity Between ASCD Brake Switch Terminals 1 & 2
    G02389320Courtesy of NISSAN MOTOR CO., U.S.A.

    If NG, adjust ASCD brake switch installation, refer to "BRAKE PEDAL ", and perform step 3 again.

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