Seat Belt System Circuit Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The fasten safety belts indicator will illuminate when the following conditions occur simultaneously:

The ignition switch is in one of the following positions:
- RUN
- BULB TEST
- START
The LF/RF safety belt is not fastened.

The audio fasten safety belt warning alarm, located within the body control module (BCM), also incorporates an indicator within the instrument panel cluster (IPC). The fasten safety belt indicator works in conjunction with the fasten safety belt warning alarm. When the inflatable restraint sensing and diagnostic module (SDM) receives a signal that the LF or RF safety belt is unfastened, the SDM sends a signal to the IPC to command ON the fasten safety belt indicator.