Circuit Description
WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
When the smart key system is preparing to be set, this circuit illuminates the indicator.
When the system is set, the indicator starts flashing.
The indicator also indicates the condition of the immobilizer system according to the request from the transponder key ECU.