Hyundai Sonata: Airbag Module / Passenger Airbag (PAB) Module Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Restraint / Airbag Module / 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 a 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 from the steering wheel after pressing the snap ...

Passenger Airbag (PAB) Module Components and Components Location
Components ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Power Seat Motor Components and Components Location
Component Location 1. Slide motor2. Front height motor3. Air ventilation seat blower4. Reclining motor5. Lumbar support motor (Vertical)6. Lumbar support motor (Horizontal)7. Rear height motor8. Lumbar support switch9. Seat back switch10. Seat cushion switch ...

Hyundai Sonata LF 2014-2019 Service Manual: Rear Seat Back Cover Repair procedures
Replacement [LH]     • Put on gloves to protect your hands.     • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. ...

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