Legacy Brighton Wagon AWD F4-2.5L SOHC (2000)
Seat Belt Pretensioner: Description and Operation
CONSTRUCTION
The driver side and front passenger side seat belts are equipped with seat belt pretensioner. The pretensioner sensor consists of the front sub sensor and a
sensor inside the airbag control module. If the sensors detect a certain predetermined amount of force during a frontal or front angled collision, the front
seat belt is quickly drawn back in by the retractor to take up the slack so that the belt effectively restrains the front seat occupant. If the force applied on
the seat belt becomes excessive and exceeds a predetermined value, the torsion bar is twisted to allow the webbing to be reeled out thus lessening the
load imposed on the thorax. Once the seat belt pretensioner has been activated, the seat belt retractor remains being locked.