Hyundai Santa Fe: Passenger Airbag (PAB) Module. Description and Operation
Description
Passenger Airbag (PAB) module is located in the passenger crash pad. This
PAB contains 2 firing squibs of airbag and 1 firing squib of active vent. Depending
of crash speed or the tightening of seat belt, it is decided a timing about
both 2 firing squibs of airbag and 1 firing squib of active vent. At the moment
of vehicles collisions, the firing squib of active vent make airbag distended
and then consecutively leaked gases of airbag through a hole at once. These
operations reduce an injury of the passenger's head. At first, the active vent
sets a rapid deployment of airbag by keeping the pressure, after deployment
of airbag it emits the gases of upper airbag. The Working Principle of Tether
Cutter: When receive an electrical signal, Tether Cutter cuts a strap which
is been attached Active vent in order to open a hole of 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 severe enough to require 2 stage
passenger airbag deployment is occurred, 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. Disconnect the battery negative cable and wait for at least three minutes before beginning work. 2. Remove the driver airbag module by putting in a flat tool (Ø5mm) into the guide hole ...
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Accelerator Position Sensor (APS). Description and Operation
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