GM Service Manual Online
For 1990-2009 cars only

The SDM can maintain enough voltage to cause a deployment for up to 10 minutes after any of the following situations occur:

    • The ignition switch is turned to the OFF position.
    • The battery is disconnected.
    • The fuse that is powering the SDM is removed.

Many of the service procedures require removal of the AIR BAG fuse and disconnection of the deployment loops. These actions help avoid an accidental deployment. If the inflator modules are disconnected from the deployment loops, service can begin immediately without waiting for the 10 minute time period to expire.