Driver Side Air Bag Module

NOTE: The driver side air bag module is serviced as a complete assembly. Perform proper disposal procedure as required.

The driver side air bag module is mounted in the center of the steering wheel. The driver side air bag module consists of the following components:

- Inflator.
- Air bag.
- Module housing and attaching bracket.
- Steering wheel trim cover.

Inflator
The inflator assembly is not a serviceable item.
- When the sensors close, signaling a crash, electrical energy flows to the air bag inflator.
- Inside the inflator, an igniter converts the electrical signal to thermal energy (heat), causing the ignition of the inflator gas generant.
- This ignition reaction combusts the sodium azide/potassium nitrate gas generant in the inflator, producing nitrogen gas, which inflates the air bag.

Air Bag
The driver side air bag:
- Is constructed of nylon.
- Is 673 mm (26.5 inches) in diameter.
- Fills to a volume of about 0.057 cubic meter (2.0 cubic feet) in approximately 40 milliseconds.
- It is not a serviceable item.

Steering Wheel Trim Cover
The steering wheel trim cover:
- Encases driver side air bag module and horn switch.
- Has moulded in tear seams that separate to allow inflation of the bag.
- Is a component of the driver side air bag module and is serviceable on the Town Car.
- Must not be repainted for any reason.