Air Bag Warning Light Flashes Quickly (Twice Per Second)
WARNING: This page is about a different car, the 1995 Toyota Tercel. However, it is still accessible from the selected car via links, so may be relevant.
Indicates source voltage is too low. If source voltage is too low, a voltage increase circuit in center air bag sensor increases voltage to normal. This condition does not set a code, and fault is not recorded in center air bag sensor. About 10 seconds after source voltage returns to normal, or air bag warning light goes out.