Section 01-20B: Restraints, Passive—Supplemental Air Bag System | 1994 Mustang Workshop Manual |
DESCRIPTION AND OPERATION
Air Bag Module, Driver Side
CAUTION: The driver side air bag module (043B13)
is serviced as a complete assembly.
The driver side air bag module
is mounted in the center of the steering wheel (3600)
. The driver side air bag module
consists of the following components:
- Inflator.
- Air Bag.
- Mounting plate and retainer ring.
- Steering wheel trim cover.
Inflator
The inflator assembly is not a serviceable item.
- When the sensors close, signaling a crash, electrical current 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/copper oxide gas
generant in the inflator, producing nitrogen gas, which inflates
the air bag.
Air Bag
The air bag is constructed of uncoated nylon. It is 673mm (26.5 inch) in
diameter and fills completely in approximately 40 milliseconds. It is not
a serviceable item.
Mounting Plate and Retainer Ring
The mounting plate and retainer ring attach and seal the air bag to the
inflator.
- The mounting bracket and housing are also used
to attach the trim cover and to mount the entire driver side air bag module
to the steering wheel
.
- These items are components of the driver side air bag module
and cannot be serviced.
Steering Wheel Trim Cover
The cover is an injection-moulded plastic component which encases the driver side air bag module
.
- When the air bag is activated, tear seams moulded into the steering wheel
trim cover separate to allow inflation of the bag assembly.
- The cover is a component of the driver side air bag module
and is not serviceable.
