Hyundai i-30: Seat Belt Pretensioner / Seat Belt Pretensioner (BPT)

Hyundai i30 (PD) 2018-2024 Service Manual / Restraint / Seat Belt Pretensioner / Seat Belt Pretensioner (BPT)

Components and components location
Components

1. Front Seat Belt Pretensioner.
2. Rear Seat Belt Pretensioner.

Description and operation
Description
The Seat Belt Pretensioners (BPT) are installed inside Center Pillar (LH & RH). When a vehicle crashes with a certain degree of frontal impact, the pretensioner seat belt helps to reduce the severity of injury to the front seat occupants by retracting the seat belt webbing. This prevents the front occupants from thrusting forward and hitting the steering wheel or the instrument panel when the vehicle crashes.
(Seat belt pretensioner may be activated in side impact collisions if the vehicle has side airbag or curtuain airbag.)
  
Never attempt to measure the circuit resistance of the Seat Belt Pretensioner (BPT) even if you are using the specified tester. If the circuit resistance is measured with a tester, the pretensioner will be ignited accidentally. This will result in serious personal injury.
Repair procedures
Removal
[Front BPT]
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
Separate the front seat belt (A) from the emergency fastening device.
3.
Remove the door scuff trim.
(Refer to Body - "Interior Trim")
4.
Remove the center pillar trim.
(Refer to Body - "Interior Trim")
5.
Remove the upper anchor bolt.

6.
Disconnect the seat belt pretensioner connector (A).

7.
Remove the seat belt pretensioner (A) after loosening the seat belt pretensioner mounting bolts.

[Rear BPT]
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
Remove the rear seat assembly.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the rear pillar trim.
(Refer to Body - "Rear Pillar Trim")
4.
After loosening the mounting bolt, then remove the second row seat belt lower anchor (A).

5.
Disconnect the rear seat belt pretensioner connector (A).

6.
Loosen the seat belt pretensioner mounting bolts and remove the rear seat belt pretensioner.

Installation
[Front BPT]
1.
Remove the ignition key from the vehicle.
2.
Disconnect the battery negative cable and wait for at least three minutes.
3.
Connect the seat belt pretensioner connector.
4.
Install the seat belt pretensioner with bolts.
Tightening torque :
39.2 - 53.9 N.m (4.0 - 5.5 kgf.m, 28.9 - 39.8 lb-ft)
5.
Install the center pillar trim.
(Refer to Body - "Interior Trim")
6.
Install the door scuff trim.
(Refer to Body - "Interior Trim")
7.
Insert the seat belt to the anchor pretensioner.
  
Make sure the lock pin is connected in properly.
8.
Reconnect the battery negative cable.
9.
After installing the seat belt pretensioner, confirm proper system operation:
Turn the ignition switch ON; the SRS indicator light should be turned on for about six seconds and then go off.
[Rear BPT]
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
Connect the rear seat belt pretensioner connector.
3.
Install the rear seat belt pretensioner mounting bolts .
Tightening torque :
39.2 - 53.9 N.m (4.0 - 5.5 kgf.m, 28.8 - 39.8 lb-ft)
4.
Install the rear pillar trim.
(Refer to Body - "Rear Pillar Trim")
5.
Install the rear seat assembly.
(Refer to Body - "Rear Seat Assembly")
6.
Reconnect the battery negative cable.

    Seat Belt Pretensioner

    ..

    Emergency Fastening Device (EFD)

    Components and components location Components 1. EFD (Emergency Fastening Device) System 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...

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