Air Bag Warning Indicator

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The air bag warning indicator:

is located in the instrument cluster (IC) module.
lamp and circuitry prove out is a function of the IC module. The IC module will prove out the air bag warning indicator by lighting the air bag warning indicator for 6 seconds and then turn off.
will flash and/or illuminate based on the message the IC module receives from the RCM.
will illuminate if the IC module does not receive a message from the RCM.