Air Bag Systems: Description and Operation

The optional supplemental driver air bag restraint system is designed to provide increased accident protection for the driver in addition to that provided by the driver three point safety belt system. Safety belt use is necessary to obtain the best occupant protection and to receive the full advantages of the supplemental air bag. Ford recommends the use of safety belt systems for all vehicle occupants.





The Supplemental Driver Air Bag Restraint System consists of three basic subsystems:
- The driver air bag.
- The electrical system, including impact sensors and electronic monitor assembly.





- The driver knee bolster.

Electrical System
The air bag system is powered directly from the battery. The system can function with the ignition switch in any position, including OFF and LOCK. The system can also function when the driver's seat is unoccupied. The electrical system performs three main functions:
- Detects an impact.
- Switches electric power to the igniter.
- Monitors the system to determine readiness.

The electrical system components include:
- Electronic diagnostic monitor.
- Air bag system readiness indicator lamp.
- Wiring harness.
- Sensors.
- Igniter Assembly.