SYSTEM DESCRIPTION HEADUP DISPLAY SYSTEM DESCRIPTION (a) The headup display system receives signals from each ECU via CAN communication and local bus communication and displays driving assist information, such as current vehicle speed, on the windshield glass assembly. The brightness and position of the headup display can be changed on the settings screen of the multi-information display. Depending on certain conditions, the following items can be displayed on the headup display: 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Parking Assist Monitor System(for Gasoline Model): Vehicle Information Unmatched (C168D)
DESCRIPTION This DTC is stored if the television camera assembly judges as a result of its self check that the vehicle information received from the main body ECU (multiplex network body ECU) via CAN communication and the vehicle information stored in the television camera assembly do not match. DTC ...
