Seat Belt Tension Sensor: Description and Operation

Safety Belt System

Safety Belt Retractor and Pretensioner

The front safety belt retractors are equipped with pretensioners that operate as part of the Supplemental Restraint System (SRS). The pretensioner is a pyrotechnic device that deploys when activated by the Restraints Control Module (RCM) to remove excess safety belt webbing from the shoulder and lap safety belt in the event of an impact. If a deployment of the safety belt retractor and pretensioners occurs, a new assembly must be installed. Refer to Safety Belt Retractor and Pretensioner Safety Belt Retractor and Pretensioner.

For safety belt retractor and pretensioner diagnostic and disposal information, refer to Air Bag Systems.