General Service Instructions

CAUTION: When performing service on or around SIR components or SIR wiring, follow the procedures listed herein to temporarily disable the SIR system. Failure to follow procedures could result in possible air bag deployment, personal injury, or otherwise unneeded SIR system repairs.

The DERM in 1993 and previous Driver-Only SIR systems can maintain sufficient voltage to cause a deployment for up to 10 minutes after the ignition switch is turned "OFF," or the battery is disconnected, or the fuse powering the DERM is removed.

The DERM in 1993-1/2 and later Driver-Only and the DERM in all Driver-Passenger SIR systems can maintain sufficient voltage to cause a deployment for up to 2 minutes after the ignition switch is turned "OFF," the battery is disconnected, or the fuse powering the DERM is removed.

Many of the service procedures require removal of the "AIR BAG" fuse, and the disconnection of the Inflator Modules from the Deployment Loop to avoid an accidental deployment. If the Inflator Module is disconnected from the Deployment Loop as noted in the "Disabling the SIR System" procedure that follows, service can begin immediately without waiting for the 10 minute or 2 minute time period to expire.