Circuit Description
WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
Body ECU activates the flasher relay during warning of the theft deterrent system and flashers the hazard. when the security operates, body ECU activates the flasher relay, however when the normal hazard switch operates, the hazard switch activates the flasher relay.