Air Bag Warning Light Check
WARNING: This page is about a different car, the 2002 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition switch to ACC or ON position. If AIR BAG warning light comes on for about 6 seconds and then goes off, system is functioning properly. If AIR BAG warning light comes on and stays on (or flashes), Diagnostic Trouble Code (DTC) is stored in air bag sensor assembly. Go to RETRIEVING CODES . If AIR BAG warning light responds in any other way, go to DIAGNOSTIC TESTS .