Air Bag: Description and Operation

Driver Air Bag Module
The driver air bag module:
- is installed new as an assembly.
- is mounted in the center of the steering wheel.
- cannot be interchanged between Expedition and Navigator vehicles.

Passenger Air Bag Module
The passenger air bag module:
- is installed new as an assembly.
- is mounted in the passenger side of the instrument panel.
- cannot be interchanged between Expedition and Navigator vehicles.

Safety Canopy Module
Vehicles are equipped with safety canopies for protection during side impacts or rollover.

Vehicles with safety canopies require a specific headliner. When installing a new headliner on a vehicle equipped with safety canopies, make sure a headliner for safety canopies is being used. The word AIRBAG will appear on the headliner where it meets each B-pillar trim panel.

The safety canopy module:
- is installed as an assembly.
- is mounted above the headliner.
- attaches from the A-pillar frame to the D-pillar frame.
- is standard equipment.
- cannot be interchanged from side to side.
- is used in conjunction with side air bag module.

Loops/Squib
All deployable devices contain an initiating device called a squib. The squib is part of the deployment loop. Air bag/safety canopy modules can contain more than one squib, some vehicles may have up to 4 squibs in one air bag module. Squibs are often referred to as loops during the diagnostic process.