Seat Belt System Circuit Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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 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 BCM receives a signal that the LF safety belt is unfastened, the BCM sends a signal to the IPC to command ON the fasten safety belt indicator.