System Outline: Notes
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
In this system, the wireless door lock control ECU receives weak radio wave transmitted from the transmitter built-into the ignition key and outputs the signal to the body ECU No. 2. Through communication control of the body ECUs and door ECUs etc., all the doors and the luggage door can be locked and unlocked by the remote control.