SEAT BELT WARNING SYSTEM(w/ Occupant Classification System) SYSTEM DESCRIPTION


  1. SEAT BELT WARNING SYSTEM DESCRIPTION


    1. Seat belt warning light operation for driver seat belt:

      The seat belt warning light on the combination meter assembly illuminates, blinks or turns off in accordance with the driver seat belt state, vehicle speed, shift lever position and parking brake state.

    2. Seat belt warning light operation for front passenger seat belt:

      The seat belt warning light on the combination meter assembly illuminates, blinks or turns off in accordance with whether the front passenger seat is occupied, the front passenger seat belt state, vehicle speed, shift lever position and parking brake state.

    3. Seat belt warning buzzer:

      After turning the engine switch on (IG), if the driver seat belt is not fastened within 1.8 seconds, the seat belt warning buzzer in the combination meter assembly will sound at an interval of 1.2 seconds for 6 seconds.

      When the vehicle is driven at 20 km/h (12 mph) or more with the front passenger seat occupied and the driver or front passenger seat belt not fastened, the seat belt warning buzzer in the combination meter assembly sounds once.

      When 24 seconds have passed after the buzzer sounded, the seat belt warning buzzer in the combination meter assembly will sound at an interval of 1.2 seconds for 9.6 seconds.

      After that, the seat belt warning buzzer in the combination meter assembly will sound at an interval of 0.4 seconds for 20 seconds.

  2. FUNCTION OF MAIN COMPONENTS

    Component Function
    Front seat inner belt assembly LH Informs the airbag sensor assembly of the driver seat belt condition (fastened or unfastened).
    Front seat inner belt assembly RH Informs the occupant detection ECU of the front passenger seat belt condition (fastened or unfastened).

    • Front occupant classification sensor LH

    • Rear occupant classification sensor LH

    		 Informs the occupant detection ECU of the front passenger seat condition (occupied or unoccupied).
    Combination meter assembly

    • Illuminates, blinks or turns off the seat belt warning light.

    • Sounds the seat belt warning buzzer.
    Occupant detection ECU Sends the front passenger seat belt buckle switch signal and occupant detection signal to the airbag sensor assembly via CAN communication.
    Airbag sensor assembly Sends the front passenger seat belt buckle switch signal and occupant detection signal to the combination meter assembly via CAN communication.
    Skid control ECU (Brake actuator assembly) Sends the vehicle speed signal to the combination meter assembly via CAN communication.
    ECM Sends the shift position signal to the combination meter assembly via CAN communication.