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Home >> Subaru >> 2014 >> BRZ Premium >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belt System >> Seat Belt Warning System >> Description Of Functions

Description Of Functions

  1. Description of the seat belt warning system
    1. Driver's seat belt warning light:

      If the driver's seat belt is not fastened with IG ON, the front seat belt warning light in the combination meter assembly will blink to warn the driver. The combination meter assembly displays the status of the driver's seat belt and the vehicle speed.

    2. Passenger's seat belt warning light:

      If the passenger's seat belt is not fastened with IG ON and the passenger's seat occupied, the front seat belt warning light in the tell taillight assembly will blink. The combination meter assembly detects the status of the passenger's seat belt and whether the passenger's seat is occupied or not.

    3. Seat belt warning buzzer:

      Check that the seat belt warning buzzer in the combination meter assembly sounds at 1.2 second intervals for 6 seconds if the driver's seat belt is not fastened within 1.8 seconds after the ignition switch is turned to ON. If the vehicle speed exceeds 20 km/h with the passenger's seat occupied and the driver's or the passenger's seat belt not fastened, the seat belt warning buzzer in the combination meter assembly will sound once. If 30 seconds have passed after the buzzer starts sounding, the seat belt warning buzzer in the combination meter assembly sounds at 1.2 second intervals and continue to sound for 30 seconds. After that, it sounds at 0.4 second intervals for approx. 90 seconds.

  2. Functions of the main parts
    Parts Function
    Front seat inner belt (driver's buckle switch) Communicates the status of the driver's seat belt (fastened or unfastened) to the combination meter assembly.
    Front seat inner belt (passenger's buckle switch) Communicates the status of the passenger's seat belt (fastened or unfastened) to the occupant detection ECM.
    Occupant detection sensor Communicates the status of the passenger's seat (occupied or not occupied) to the occupant detection ECM.
    Occupant detection ECM Transmits the passenger's seat belt buckle switch signal and the occupant detection signal to the airbag sensor assembly.
    Airbag control module Transmits the passenger's seat belt buckle switch signal to the combination meter assembly.
    Driver's seat belt warning light If the driver's seat belt is not fastened with IG ON, the combination meter will make the seat belt warning light in the combination meter assembly blink as a reminder.
    Passenger's seat belt warning light If the passenger's seat belt is not fastened with IG ON and the passenger's seat occupied, the combination meter will make the seat belt warning light in the tell taillight assembly blink as a reminder.
    Seat belt warning buzzer If the vehicle speed exceeds 20 km/h (12.5 mph) with one of the following conditions met, the buzzer in the combination meter assembly will sound as a reminder:
    1. The driver's seat belt is not fastened.
    2. The passenger's seat is occupied and the passenger's seat belt is not fastened.
    Skid control ECM Transmits the vehicle speed signal to the combination meter assembly via the CAN communication.