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

Hyundai Elantra AD (2016-2020) 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.

Emergency Fastening Device (EFD) Components and Components Location

Components 1. EFD(Emergency Fastening Device) System ...

Emergency Fastening Device (EFD) Repair procedures

Removal 1. Disconnect the battery negative cable and wait for at least 3 minutes before beginning work. 2. Remove the front seat. (Refer to Body - "Front Seat Assembly") 3. Remove the rea ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Auto Door Lock/ Unlock Features
Impact sensing door unlock All doors will be automatically unlocked when an impact causes the air bags to deploy. Speed sensing door lock All doors will be automatically locked when vehicle speed exceeds 9 mph (15 km/h). All of the doors will be automatically unlocked after the engine is turne ...

Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Component Replacement After Deployment • Before doing any SRS repairs, use the GDS Pro to check for DTCs. Refer to the Diagnostic Trouble Code list for repairing of the related DTCs. When the front airbag(s) deployed after a collision, replace the following i ...