Code 2: Driver-Side Air Bag Module Circuit Fault: Description
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Air bag diagnostic monitor checks all circuits for faults. If the air bag diagnostic monitor detects an unexpected condition on driver-side air bag module circuits, it will flash Code 2 on AIR BAG warning light.