Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: System Diagram

SYSTEM DIAGRAM

Communication Table

Sender	Receiver	Signal	Line
Air Conditioning Amplifier Assembly	Outer Mirror Control ECU Assembly	Mirror heater drive request signal	CAN
Main Body ECU (Multiplex Network Body ECU)	Outer Mirror Control ECU Assembly	IG signal ACC signal Outer mirror switch assembly signal Mirror position request signal (seat position memory and reactivation function)	CAN
Outer Mirror Control ECU Assembly	Main Body ECU (Multiplex Network Body ECU)	Outer mirror state signal Seat memory switch signal	CAN
Certification ECU (Smart Key ECU Assembly)	Main Body ECU (Multiplex Network Body ECU)	Key ID signal	CAN
Radio and Display Receiver Assembly	Air Conditioning Amplifier Assembly	Mirror heater switch (rear window defogger switch) operation signal	CAN

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Panoramic View Monitor System(for Gasoline Model): CAN Communication Failure (Message Registry) (U1000)
DESCRIPTION If DTC U1000 is stored frequently, duplicate the problem symptoms and perform troubleshooting again even if the DTC is not output when rechecking for DTCs. Parking Assist ECU DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U1000 CAN Communication Failure (Mess ...

Toyota Avalon (XX50) 2019-2022 Owners Manual