Kia Sedona: Passenger Airbag (PAB) Module Description and Operation
Third generation YP (2014-2024) / Kia Sedona YP Service Manual / Restraint / Airbag Module / Passenger Airbag (PAB) Module Description and Operation
| Description |
Passenger Airbag (PAB) module is located in the passenger
crash pad. The PAB contains 2 firing squibs of airbag and 1 firing squib
of active vent. The deployment timing of both 2 firing squibs of airbag
and 1 firing squib of active vent depends on the crash speed or the
level of tightening of the seat belt. At the moment of collision, the
firing squib of active vent inflates the airbag, and when the passenger
collides with the airbag, the gas inside escapes through a small vent
hole. This operation will reduce the level of injury to the passenger''s
head.
At first, the active vent instantly deploys the airbag by
inflating it at a high pressure, and after the deployment, it slowly
discharges the gas from the upper airbag.The Working Principle of Tether
Cutter: On receiving an electrical signal, the Tether Cutter cuts off a
strap from the active vent to open a hole in the upper airbag.
The working range of Active Vent
| 1) |
If occupant in passenger seat is not belted, active vent is disposed in the end of crash event regardless of crash severity. |
| 2) |
If occupant is belted and crash is severe enough to require 2
stage passenger airbag deployment, active vent is activated to optimize
occupant protection. |
| 3) |
Low-Speed + Belted : Inflator of Primary Fire + 2 Stage & Active Vent disposal in the end of crash event. |
Never attempt to measure the circuit resistance of the airbag
module (squib) even if you are using the specified tester. If the
circuit resistance is measured with a tester, accidental airbag
deployment will result in serious personal injury. |
Driver Airbag (DAB) Module and Clock Spring Repair procedures
Removal
1.
Set the front tires straight-ahead before removing the steering wheel.
If the steering wheel and the front tires are not set
straight ahead together, t ...
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