Circuit Description
WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
The body ECU activates the flasher relay during warning of the anti-theft system and flashes the hazard. When the security operates, the body ECU activates the flasher relay, however when the normal hazard switch operates, the hazard switch activates the flasher relay. For circuit diagram, see Fig 1.