Impala V6-3.8L SC VIN 1 (2005)
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Air Bag: Description and Operation
Inflator Modules
INFLATOR MODULES
The inflator modules consist of a housing, an inflatable air bag, the initiator, a canister of gas generating materials, and in some cases, stored compressed
gas. The initiator is part of the inflator module deployment loop. When the vehicle is involved in a collision of sufficient force, the sensing and
diagnostic module (SDM) causes current to flow through the deployment loops to the initiator. Current passing through the initiator ignites the material
in the canister producing a rapid generation of gas and the release of compressed gas, if present. The gas produced from this reaction rapidly inflates the
inflator module. Once the inflator module is inflated, it quickly deflates through the vent holes and/or the fabric. Each inflator module is equipped with a
shorting bar that is located in the connector of the inflator module. The shorting bar shorts the inflator modules circuitry to prevent unwanted deployment
of the inflator module when the connector is disconnected.