Belt Pretensioner (236D, 236P)

Belt Pretensioner (236D, 236P)

Location
Belt tensioner, driver (236D)
Belt tensioner, passenger (236P)







Main task
The belt tensioner pulls the belt taut during the event of a collision, reducing forward movement of the driver or passenger. Additionally, force limiters release the belt according to a controlled sequence.

Type
The compact belt tensioner is a part of the inertia reel consisting of an explosive charge, feeler gauge, filter and a torsion unit.

1. Detonator











2. Charge
3. Belt tensioner housing
4. Chamber
5. Steel band

The driver's side belt pretensioner is connected to pin 20 (B+) and pin 21 (ground) on the airbag control module.











The driver's side belt pretensioner is connected to pin 20 (B+) and pin 21 (ground) on the airbag control module.