Hyundai Sonata: Seat Belt Pretensioner / Emergency Fastening Device (EFD) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Restraint / Seat Belt Pretensioner / Emergency Fastening Device (EFD) Description and Operation

Description

The Emergency Fastening Device (EFD) operates at the same time with the Seat Belt Pretensioner when it satisifies the deployment condition after a collision. It is an auxiliary equipment to prevent a driver and passenger from breaking away by pulling the seat belt toward the anchor side after a collision. It is located near the anchor on the driver and passenger seat and is supported by two cables.

Never measure the resistance of the anchor pretensioner directly, the current of the measuring device may cause unexpected airbag deploy.

Seat Belt Pretensioner (BPT) Repair procedures

Removal 1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work. 2. Remove the door scuff trim. (Refer to Body - "Interior Trim") 3. Remove t ...

Emergency Fastening Device (EFD) Components and Components Location

Components ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Stop Signal Electronic Module Specifications
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Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Component Location 1. Windshield wiper arm & blade2. Wiper & washer switch3. Windshield washer hose & nolzzle4. Washer reservoir5. Washer motor6. Washer fluid level sensor7. Wiper motor & linkage assembly8. Wiper High/Low relay (Built - in Metal core block PCB) ...