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Component Function Check

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ICC BRAKE SWITCH FUNCTION

    WITH CONSULT-III

    1. Turn ignition switch ON.
    2. Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT-III.
    3. Check "BRAKE SW1" indication under the following conditions.
      MONITOR ITEM CONDITION

      Monitor item Condition Indication
      BRAKE SW1 (ICC brake switch) Brake pedal Slightly depressed OFF
      Fully released ON

    WITHOUT CONSULT-III

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminals as per the following.
      VOLTAGE SPECIFICATION

      ECM Condition Voltage
      Connector + -
      Terminal Terminal
      E80 147 (ICC brake switch signal) 175 Brake pedal Slightly depressed Approx. 0 V
      Fully released Battery voltage

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".

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