Circuit/System Description: Notes

The motorized seat belt retractor motor modules are motorized seat belt pretensioners that operated independent from each other and from the inflatable restraint sensing and diagnostic module. The motorized seat belt retractor motor modules normally remove slack from the seat belt and under certain conditions apply tension to the seat belt of the driver seat and if occupied, the passenger seat as well. A motorized seat belt is a seat belt with a motor coupled to the shoulder belt retractor. The motor performs a reversible, pretightening action (retraction) to reduce the slack in the seat belt. The motorized seat belt provides the driver and passenger a sense of safety and, in the case of severe braking or a crash, more quickly couples the occupant to the vehicle, enhancing the safety to the occupant.