Air Bag Warning Chime
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The air bag warning chime warns that the air bag warning indicator is inoperative or an active fault is present within the air bag system. The audible warning format consists of 5 sets of tones in 1 second increments.
The air bag warning chime input is the restraints control module (RCM).