Impact Sensor: Description and Operation

AIR BAG AND SAFETY BELT PRETENSIONER SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

The air bag and safety belt pretensioner supplemental restraint system (SRS) is designed to provide increased collision protection for front seat occupants in addition to that provided by the three-point safety belt system. Safety belt use is necessary to obtain the best occupant protection and to receive the full advantage of the SRS. The air bag and safety belt pretensioner supplemental restraint system (SRS) consists of the following components:
- a restraints control module
- two side-crash sensors (vehicles with side air bags)
- an air bag sliding contact
- a driver air bag module
- a passenger air bag module
- a driver-side air bag module (vehicles with side air bags)
- a passenger-side air bag module (vehicles with side air bags)

Sensors

WARNING: The restraints control module (RCM) orientation is critical for correct system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) has been involved in a collision in which the center tunnel area has been damaged, inspect the mounting and bracket for deformation. If damaged, the RCM must be replaced whether or not the air bags have deployed. In addition, make sure the area of the RCM mounting is restored to its original condition.

For this vehicle, the SRS employs three crash sensors. One of the sensors is integral to the RCM and is not serviceable separately. In addition, there are two side crash sensors located in the LH and RH B-pillars. The RCM is mounted on the center tunnel under the instrument panel. Mounting orientation is critical for correct operation of all crash sensors.