Air Bag Warning Indicator
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The air bag warning indicator is used to provide a status of the supplemental restraint system. The instrument cluster receives a message from the restraint control module (RCM) over the high speed CAN. If an air bag system concern is detected, a diagnostic trouble code (DTC) is logged and the RCM sends a message to the instrument cluster to illuminate the air bag warning indicator.