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Component Function Check

WARNING: This page is about a different car, the 2013 Infiniti FX37. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ASCD BRAKE SWITCH FUNCTION 

    With CONSULT 

    1. Turn ignition switch ON.
    2. Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT.
    3. Check "BRAKE SW1" indication under the following conditions.
      Monitor item Condition Indication
      BRAKE SW1 Brake pedal Slightly depressed OFF
      Brake pedal Fully released ON

    Without CONSULT 

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminals as per the following.
      ECM Condition Voltage (V)
      Connector + -
      Terminal Terminal
      M164 126 (ASCD brake switch signal) 128 Brake pedal Slightly depressed Approx. 0
      Brake pedal Fully released Battery voltage

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".

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