Sedan Jr41
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The seat belt system incorporates Tensioner Modules. They are integral to the front seat belt retractors and cannot be serviced. If found defective they must be replaced. In the event of an impact, the retractor assembly must be replaced regardless of belt condition. The tensioner is a one time pyrotechnic device.