Secondary Air Bag Warning (Chime)
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The secondary air bag warning chime, is an audible chime controlled by the instrument cluster module (ICM). If the ICM has detected a fault with the air bag warning indicator, a DTC will be stored in the memory of the ICM. Upon receiving the message from the RCM that a supplemental restraint system (SRS) fault has been detected, the ICM will sound the secondary air bag warning chime in a pattern of 5 sets of 5 beeps.