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 Lamp Switch Repair procedures
Adjustment 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the lower crash pad. (Refer to Body - "Crash Pad") 3. Remove the knee airbag. (Refer to Rstraint - "Air Bag Module") 4. Confirm the gap between stop lamp switch and bracket. Stop lamp ...

Hyundai Sonata LF 2014-2019 Service Manual: Front Oil Seal Repair procedures
Removal and Installation 1. Crankshaft damper pulley. (Refer to Timing System - "Damper Pulley") 2. Remove the front oil seal.     Using the SST (09455-21200), reassemble the timing chain cover oil seal. 3. Install in the reverse order of removal. ...

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