Belt pretensioner (236D, 236P)
 
  
 
 
  
   
    
     |  | Belt pretensioner (236D, 236P) | 
   
  
  
  
  
  
  
  
  
   
  
  
   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.
   
   
   
   
   
   
   
  
  
   
  
  
   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 
 
   
   
 | 
    
   
  
  
   
  
  
   
    
     
      | 3. | Belt tensioner housing 
 
 | 
    
   
  
  
   
  
  
   
  
  
  
  
  
  
  
  
   
  
  
   The driver's side belt pretensioner is connected to pin 20 (B+) and pin 21 (ground) on the airbag control module.
   
   
   
     
   
   
   
     
   
   
  
  
   The passenger side belt pretensioner is connected to pin 23 (B+) and pin 22 (ground) on the airbag control module.
   
   
   
    