Air Bag Systems: Description and Operation

Fig. 1 Airbag Restraint System:

The Supplemental Restraint System (SRS) is designed to supplement the driver and passenger seat belts to help reduce the risk or severity of injury to the front seat occupants by activating and deploying a driver and passenger (if equipped) side air bag in certain frontal collisions.
The major components of the SRS are, the airbag module, the clockspring, the impact sensors and the Airbag System Diagnostic Module (ASDM). If any of these parts should fail, they must be replaced, as they cannot be repaired.
The SRS is designed to deploy the air bag when the safing sensor, located inside the ASDM, and either impact sensor simultaneously activate while the ignition switch in the ON position.
The fasteners, screws and bolts used for airbag components have special coatings and are specifically designed for the airbag system. They must not be replaced with substitutes. If fastener replacement is required, use the correct fasteners provided in the service package.