Inflator Modules

The inflator modules consist of an inflatable bag and an inflator. An inflator consists of a canister of gas-generating material and an initiating device. The initiator is part of the deployment loop. When the vehicle is in a frontal crash of sufficient force, the inflatable restraint Sensing and Diagnostic Module (SDM) causes current to flow through the frontal air bag deployment loops. When the vehicle is in a side impact crash of sufficient force, the inflatable restraint Side Impact Sensor (SIS) sends a message to the inflatable restraint sensing and diagnostic module (SDM). The SDM causes current to flow through the side impact air bag 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.

There is a shorting bar on the inflatable restraint steering wheel module side of the upper steering column connector that connects the inflatable restraint steering wheel module coil to the inflatable restraint steering wheel module. The shorting bar shorts across the inflatable restraint steering wheel module circuits during the disconnection of the upper steering column connector. The shorting of the inflatable restraint steering wheel module circuitry will help prevent unwanted deployment of the air bag when servicing the inflatable restraint steering wheel module, the steering column or other SIR system components.

There is a shorting bar on the inflatable restraint IP module connector that connects to the SIR wiring harness. The shorting bar shorts across the inflatable restraint IP module circuits during the disconnection of the inflatable restraint IP module connector.

The shorting of the inflatable restraint IP module circuitry will help prevent unwanted deployment of the air bag when servicing the inflatable restraint IP module, the instrument panel or other SIR system components.

There is a shorting bar on each inflatable restraint side air bag module connector that connects to the SIR wiring harness. The shorting bar shorts across the inflatable restraint side air bag module circuits during the disconnection of the inflatable restraint side air bag module connector. The shorting of the inflatable restraint side air bag module circuitry will help prevent unwanted deployment of the air bag when servicing the inflatable restraint side air bag module, the seat or other SIR system components.