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Home >> Infiniti >> 2013 >> M35h >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Hybrid Control System) >> DTC/Circuit Diagnosis >> DTC P1572: Brake Switch >> Component Function Check
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Component Function Check

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM COMPONENT FUNCTION CHECK

    ◦ With CONSULT

    1. Turn ignition switch ON.
    2. Select "ASCD BRAKE SW" in "DATA MONITOR" mode of "EV/HEV" using CONSULT.
    3. Check that monitor indication as per the following condition.
      Monitor item Condition Indication
      ASCD BRAKE SW Brake pedal Slightly depressed OFF
      Fully released ON

    ⓧ Without CONSULT

    1. Turn ignition switch ON.
    2. Check the voltage HPCM harness connector terminals as per the following condition.
      + - Condition Voltage (Approx.)
      HPCM
      Connector Terminal
      B159 59 Ground Brake pedal Slightly depressed 0 V
      Fully released Battery voltage

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Proceed to "DIAGNOSIS PROCEDURE ".