9-3 Viggen Convertible (9400) L4-2.3L Turbo (B235) HO (2001)
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The driver's airbag is mounted in the steering wheel. It is connected to pins 1 and 2 of the control module.
The driver's airbag assembly consists of a gas generator and the airbag itself. The gas generator is riveted and screwed to a metal bracket. The airbag is
protected by a plastic sheath with stress raisers (fracture lines) that is mounted on the metal bracket. The airbag has a volume of about 60 litres.
The steering wheel centre pad (airbag module) is supplied with test and detonation current from a coil spring (contact roller), which also supplies the SID
with information from the steering wheel buttons.
Driver airbag gas generator
The gas generator consists of a light alloy housing, electric detonator, explosive charge and filter.
On receiving an activation command, the control module sends a current pulse to the detonator which ignites the explosive charge. On combustion, this
explosive charge generates a gas. The filter cools the gas and removes particles from it before it passes into the airbag.
