DESCRIPTION The main body ECU (multiplex network body ECU) detects a high beam headlight illumination request signal of the automatic high beam system from the forward recognition camera.
WIRING DIAGRAM  PROCEDURE
(a) Check front camera system. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Gasoline Model): USB Audio System Recognition/Play Error
DESCRIPTION When a USB device or "iPod" is connected to the USB jack of the stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the radio and display receiver assembly. This diagnostic procedure is for when a device is not recognized, ...
