Air Bag: Description and Operation

DESCRIPTION
The inflator modules consist of an inflatable bag and an inflator (a canister of gas-generating material and an initiating device).

OPERATION
When the vehicle is in a frontal crash of sufficient force, the SDM or arming sensor causes current to flow through the deployment loops. Current passing through the initiator ignites the material in the inflator module. The gas produced from this reaction rapidly inflates the air bag.