Mercury Villager 1993-2000
Nissan Quest 1993-2000
The module contains four parts: an inflator, a bag, a container, and the cover. The purpose of the inflator is to generate the gas needed to fill the air bag. It consists of a high strength steel casing containing a propellant that is activated by an igniter. The igniter is fired by the electrical signal received from the crash and safing sensors. When the igniter is fired, the propellant discharge is ignited and fills the bag. As the bag fills, invisible tear seams molded in the cover tear open, allowing the bag to inflate and cushion the forward motion of the occupant and protect against serious injury.