Seat Belt Pretensioner (BPT)

Components and Component Location

Components

1. Front Seat Belt Pretensioner (BPT)

Description and Operation

Description

The seat belt pretensioners (BPT) are installed inside the center pillar (left and right). In a frontal collision of a certain severity, the seat belt pretensioner helps reduce the severity of injuries to front occupants by retracting the seat belt webbing. This prevents the front occupants from moving forward and striking the steering wheel or instrument panel when the vehicle crashes.

Never attempt to measure the resistance of the seat belt pretensioner (BPT) circuit, even if you use a special tester. If the circuit resistance is measured with a tester, the pretensioner may accidentally deploy. This may result in serious personal injury.

Repair Procedures

Removal

1. 1
   Disconnect the negative battery cable and wait at least three minutes before starting work.
2. 2
   Remove the lower center pillar trim. (Refer to Body - "Center Pillar Trim")
3. 3
   Remove the upper center pillar trim. (Refer to Body - "Center Pillar Trim")
4. 4
   Loosen the mounting bolt and remove the front lower seat belt anchor (A).

   

5. 5
   Disconnect the seat belt pretensioner connector, then remove the seat belt pretensioner after loosening the mounting bolts (A) and (B).

   

Installation

1. 1
   Disconnect the negative battery cable and wait at least three minutes.
2. 2
   Install the seat belt pretensioner. Tightening torque: Bolt (A): 7.8 - 11.8 N·m Bolt (B): 39.2 - 54 N·m

   

3. 3
   Install the upper anchor bolt of the front seat belt.

   Torque: 39.2 – 54 N·m

   

4. 4
   Install the center pillar garnish. (Refer to Body - "Center Pillar Garnish")
5. 5
   Install the door scuff plate. (Refer to Body - "Door Scuff Plate")
6. 6
   Connect the negative battery cable.
7. 7
   After installing the seat belt pretensioner, check the system operation:

   • Turn the ignition ON; the SRS indicator should illuminate for about six seconds and then go off.