Air Bag Sensor Assembly
WARNING: This page is about a different car, the 2002 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
Air bag sensor assembly is located on the floor, under center of instrument panel. It consists of an air bag sensor, safing sensor and diagnosis, ignition and drive circuits. It receives signals from air bag sensors and determines whether air bag modules and pretensioners must be deployed or not.