| Last Modified: 11-29-2007 | 1.6 D | |
| Service Category: Vehicle Interior | Section: Seat Belt | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002ZFE002X |
| Title: SEAT BELT: SEAT BELT WARNING SYSTEM: SYSTEM DESCRIPTION (2008 Sequoia) | ||
SYSTEM DESCRIPTION
1. 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.
(a) Seat belt warning light (for driver side):
When the driver seat belt is not fastened with the ignition switch ON, the driver seat belt warning light on the combination meter blinks to inform the driver. The center airbag sensor detects the driver seat belt status and sends signals to the meter ECU using CAN.
(b) Passenger seat belt warning light (for front passenger side):
When the passenger seat belt is not fastened with the ignition switch ON and the passenger seat occupied, the passenger seat belt warning light on the integration control and panel displays. The meter ECU displays the passenger seat belt status and whether the passenger seat is occupied.
(c) Seat belt warning buzzer:
(1) When the ignition switch is turned to ON while the driver seat belt is not fastened, the seat belt warning buzzer in the combination meter sounds at an interval of 1.2 seconds 5 times.
(2) When the vehicle is driven at approximately 20 km/h (12 mph) or more while the driver or front passenger seat belt is not fastened, the buzzer sounds at an interval of 1.2 seconds for 9.6 seconds, and then the buzzer sounds at an interval of 0.4 seconds for 20 seconds.
2. FUNCTION OF MAIN COMPONENT
The following functions are available.
|
Component |
Function |
|---|---|
|
Front seat inner belt LH (driver side buckle switch) |
Informs center airbag sensor of the driver side seat belt condition (fastened or unfastened). |
|
Front seat inner belt RH (passenger side buckle switch) |
Informs center airbag sensor of the front passenger side seat belt condition (fastened or unfastened). |
|
Occupant detection sensor |
Informs center airbag sensor of the front passenger side seat condition (occupied or unoccupied). |
|
Driver seat belt warning light |
If driver seat belt is unfastened and the ignition switch is ON, the meter ECU flashes the seat belt warning light of the combination meter as a reminder. |
|
Front passenger seat belt warning light |
When front passenger seat is occupied and the ignition switch is ON, if the passenger seat belt is unfastened, the meter ECU flashes the seat belt warning light on the integration control and panel as a reminder. |
|
Seat belt warning buzzer |
If driver or front passenger seat belt is unfastened and the ignition switch is ON, the meter ECU sounds the buzzer as a reminder. |
3. SYSTEM OPERATION
(a) Driver seat belt warning light:
(1) When the driver seat belt is not fastened with the ignition switch ON, check that the driver seat belt warning light on the meter comes on to inform the driver.
(b) Front passenger seat belt warning light:
(1) When the front passenger seat belt is not fastened with the ignition switch ON and the front passenger seat occupied, check that the front passenger side seat belt warning light on the integration control and panel blinks.
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