Seat Belt Warning System (For Hatchback) System Description

Vehicle Interior. Yaris. Ncp93, 131
Seat Belt. Yaris. Ncp93, 131

  1. SEAT BELT WARNING SYSTEM DESCRIPTION

  1. FUNCTIONS OF MAIN COMPONENTS

Seat Belt Warning System (For Hatchback) -- System Description



SEAT BELT WARNING SYSTEM DESCRIPTION
If a seat belt is not fastened, this system flashes the seat belt warning light or sounds the seat belt warning buzzer as a reminder.

  1. Driver side seat belt warning light:
    When the driver side seat belt is not fastened with the ignition switch ON, the driver side seat belt warning light on the combination meter assembly blinks to inform the driver. The airbag sensor assembly detects the driver side seat belt status and sends signals to the combination meter assembly via CAN communication.

  2. Front passenger side seat belt warning light:
    When the front passenger side seat belt is not fastened with the ignition switch ON and the front passenger seat occupied, the front passenger side seat belt warning light on the combination meter assembly blinks. The combination meter assembly displays the front passenger side seat belt status and whether the front passenger side seat is occupied.

  3. Seat belt warning buzzer:
    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 30 seconds have passed after the buzzer sounded, the seat belt warning buzzer in the combination meter assembly sounds at an interval of 1.2 seconds for 9.6 seconds. After that, the seat belt warning buzzer in the combination meter assembly sounds at an interval of 0.4 seconds for 20 seconds.


FUNCTIONS OF MAIN COMPONENTS

Component
Function
Front Seat Inner Belt Assembly LH (Driver Side Buckle Switch)
Informs airbag sensor assembly of front driver seat belt condition (fastened or unfastened).
Front Seat Inner Belt Assembly RH (Front Passenger Side Buckle Switch)
Informs airbag sensor assembly of front passenger seat belt condition (fastened or unfastened).
Occupant Classification Sensor
Informs combination meter assembly of front passenger seat condition (occupied or unoccupied).
Front Seat Belt Warning Light
  1. If driver side seat belt is unfastened and ignition switch is ON, combination meter assembly flashes the driver side seat belt warning light of combination meter assembly as reminder.
  2. When front passenger seat is occupied and ignition switch is ON, if passenger seat belt is unfastened, combination meter assembly flashes seat belt warning light in combination meter assembly as reminder.
Seat Belt Warning Buzzer
If seat belt is unfastened and vehicle is driven at 20 km/h (12.4 mph) or more, combination meter assembly sounds buzzer as reminder.