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Component Function Check

  1. CHECK PRE-CRASH SEAT BELT CONTROL UNIT INPUT SIGNAL

    With CONSULT-III

    When checking "B-pedal sensor SIG1" and "2" on DATA MONITOR screen, check that the voltage does not change if brake pedal is not operated.

    NOTE: Diagnosis should be performed with engine running, audio and air conditioner operating.

    B-pedal sensor SIG1 

    Brake released There is no change in the voltage value, and it is almost constant 

    B-pedal sensor SIG2 

    Brake released There is no change in the voltage value, and it is almost constant 

    Without CONSULT-III

    1. Start the engine.
    2. Check that voltage between pre-crash seat belt harness connector and ground without brake pedal operation is normal.
    TERMINALS VOLTAGE REFERENCE

    Terminal Measuring condition Voltage
    (+) (-)
    16 Ground Brake released When engine is started and audio and air conditioner are operating There is no change in the voltage value, and it is almost constant.
    20

    Is the inspection result normal? 

    YES : Brake pedal stroke sensor shield ground system is normal.

    NO : Check shield wire for damage. Repair or replace if necessary.

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