System Operation Check
WARNING: This page is about a different car, the 1995 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition switch to the ON or ACC position. The air bag warning light should illuminate for about 6 seconds. If the light does not react in this manner, there is a malfunction in the SRS. Refer to DIAGNOSIS & TESTING .