SEAT BELT WARNING 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 blinks or turns off in accordance with the driver seat belt state or vehicle speed.

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

      The seat belt warning light on the combination meter assembly blinks or turns off in accordance with the whether the front passenger seat is occupied, the front passenger seat belt state or vehicle speed.

    3. Rear seat belt warning light (w/ Rear Seat Belt Warning):

      The rear seat belt warning lights on the telltale light assembly illuminate or turn off in accordance with the rear door state, vehicle speed and rear seat belt state.

    4. Seat belt warning buzzer:

      When the vehicle is driven at 20 km/h (12 mph) or more with the driver seat belt not fastened, the seat belt warning buzzer in the combination meter assembly sounds at an interval of 1.2 seconds for 30 seconds.

      After that, the seat belt warning buzzer in the combination meter assembly sounds at an interval of 0.4 seconds for 90 seconds.

  2. FUNCTION OF MAIN COMPONENTS

    Component Function
    Front seat inner belt assembly (driver seat) Informs the airbag sensor assembly of the driver seat belt condition (fastened or unfastened).
    Front seat inner belt assembly (front passenger seat) Informs the combination meter assembly of the front passenger seat belt condition (fastened or unfastened).
    Occupant detection sensor (separate type front seat cushion pad) Informs the combination meter assembly of the front passenger seat condition (occupied or unoccupied).

    • Rear seat inner with center belt assembly LH*

    • Rear seat inner with center belt assembly RH*

    		 Informs the combination meter assembly of each rear seat belt condition (fastened or unfastened).
    Rear door courtesy light switch assembly (for LH/RH)* Informs the main body ECU (multiplex network body ECU) of the rear door condition (open or closed).
    Airbag sensor assembly Sends the driver seat belt buckle switch signal to the main body ECU (multiplex network body ECU) via CAN communication.
    Main body ECU (multiplex network body ECU)

    • Sends the driver seat belt buckle switch signal and parking brake switch signal to the combination meter assembly via CAN communication.

    • Sends the rear door courtesy light switch 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.

    • *: w/ Rear Seat Belt Warning