System Outline
WARNING: This page is about a different car, the 2008 Lexus IS 350 and 2008 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
The AVC-LAN consists of audio visual systems such as the gateway ECU, data link connector 3, clock assembly (w/ LEXUS navigation system) or integration control and panel assembly (w/o LEXUS navigation system), multi-display, multimedia module navigation assembly, radio receiver assembly and stereo component amplifier. The gateway ECU has communication circuits which correspond with the different types of communication data. Different types of communication data can then be shared among communication parts after it goes through gateway ECU.