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Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (VK50VE) - FX50 - Component & System Checks, Ecu & Symptom Diagnosis, Precautions & Preparation, Periodic Maintenance, Service Data And Specifications (SDS) >> ASCD Brake Switch >> Component Function Check

Component Function Check

  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 (ASCD brake switch) Brake pedal Slightly depressed OFF
    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
    M160 117 (ASCD brake switch signal) 128 Brake pedal Slightly depressed Approx. 0
    Fully released Battery voltage

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Go to "DIAGNOSIS PROCEDURE ".

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