Driver's air bag module

DRIVER'S AIR BAG MODULE

The new type steering wheel has side controls for the horns and the centre section contains the housing for fitting the module.

It is secured by three bolts to the rear of the steering wheel.

The module is made up of a steel plate covered by a plastic container which constitutes the centre of the steering wheel.

1. Horns
2. Module
3. Bag
4. Container
5. Detonator
6. Spring device
7. Bolts fixing lower plate to steering column switch unit
8. Clock spring lower plate
9. Electrical connection

The container houses the suitably folded bag and the inflation device. The inflation device contains a detonator which can be electrically activated and a chemical compound (sodium nitride) for the formation of the gas (nitrogen).

The rear of the bag houses suitable sized openings for deflating the bag immediately after it has been inflated.

AIR BAG MODULE PASSENGER SIDE

The passenger AIR BAG module is also enclosed in a container which is fixed to a metal fram. The composition and operating principle is the same as for the one on the driver's side.

When the connector is disconnected from the Air Bag modules, they are shortcircuited: a special spring device incorporated in the module connectors joins the two terminals. In this way they cannot be activated by means of a direct supply.

NOTE: Air Bag modules should be replaced 10 years after fitting, the date is given on the label.