SYSTEM DIAGRAM for Front Seat 
 for Rear Seat (w/ Rear Seat Heater) 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Power Mirror Control System(for Gasoline Model With Memory): Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch
DESCRIPTION The outer mirror switch assembly sends the mirror adjust switch signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then sends the received mirror adjust switch signals to the outer mirror control ECU assembly LH via CAN communication ...
