Operation CHARM: Car repair manuals for everyone.

General Service Precautions


CAUTION: When performing service on or around SIR components or SIR wiring, follow the procedures listed in Air Bags Arming and Disarming to temporarily disable the SIR system. Failure to follow procedures could result in possible air bag deployment, personal injury, or unneeded SIR system repairs. Air Bag(s) Arming and Disarming


The inflatable restraint Sensing and Diagnostic Module (SDM) maintains a reserve energy supply. When the vehicle power is insufficient to cause deployment of the air bags, the reserve energy supply provides the deployment power. Deployment power is available for as much as 10 minutes after disconnecting the vehicle power by any of the following methods:
^ You turn the ignition switch to the OFF position.
^ You remove the fuse that provides power to the SDM.
^ You disconnect the vehicle battery from the vehicle electrical system.

Performing "Disabling the SIR System" procedure prevents deploying of the air bags from the reserve energy supply power.