LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2024 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component /Circuit Diagnosis >> ICC Brake Switch >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

  1. CHECK ICC BRAKE SWITCH FUNCTION SYMBOL
    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
      (ICC brake switch)
      Brake pedal Slightly depressed OFF
      Fully released ON

    SYMBOL WITHOUT CONSULT

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminals as per the following.
      ECM Condition Voltage
      Connector + -
      Terminal Terminal
      E20 140
      (ICC brake switch signal)
      152 Brake pedal Slightly depressed Approx. 0 V
      Fully released Battery voltage

    Is the inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Go to Refer to Diagnosis Procedure .