Crossfire SRT-6 V6-3.2L SC VIN N (2005)
Seat Belt Tensioner: Description and Operation
In the event of a collision (head-on or rear-end) the seat belt tensioner eliminates the slack in the belt and prevents the seat belt from unreeling. The tight
seat belt causes the vehicle passengers to decelerate at the same rate as the body at an earlier point in time. The Seat Belt Tensioner (SBT) for the driver
and passenger are located at the bottom of the B-pillar behind the plastic trim panel.
The front seat belt system incorporates both driver and passenger Seat Belt Tensioner (SBT) retractors. At the onset of an impact event each tensioner
uses a pyrotechnic device, which is triggered simultaneously with the front airbags to rapidly retract the seat belts. With the slack removed, the
occupant's forward motion in an impact will be reduced as well the likelihood of contacting interior components. After an impact that deploys the airbag,
the seat belt tensioner assembly must be replaced. The Occupant Restraint Controller (ORC) module monitors the seat belt tensioners circuit resistance
and reports active and stored DTCs if any problem is found. Follow all of the safety procedures when servicing tensioner.
The Seat Belt Tensioners (SBT) are equipped with a force limitation device which reduces the force of the belt on the passenger's body, without affecting
the protective function of the seat belt during an impact.
SEAT BELT TENSIONER - FUNCTIONALITY
