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

SYSTEM DIAGRAM

FRONT SEAT BELT WARNING

Communication Table

Sender	Receiver	Signal	Communication Method
Airbag ECU assembly	Main body ECU (multiplex network body ECU)	Front seat inner belt assembly LH buckle switch	CAN
Airbag ECU assembly	Combination meter assembly	Front seat inner belt assembly RH buckle switch Occupant detection
Skid control ECU (brake actuator assembly)	Combination meter assembly	Vehicle speed
ECM	Combination meter assembly	Shift position
Occupant detection ECU	Airbag ECU assembly	Front seat inner belt assembly RH buckle switch Occupant detection
Main body ECU (multiplex network body ECU)	Combination meter assembly	Front seat inner belt assembly LH buckle switch Parking brake switch

REAR SEAT BELT WARNING

Communication Table

Sender	Receiver	Signal	Communication Method
Main body ECU (multiplex network body ECU)	Combination meter assembly	Rear door courtesy light switch (LH/RH) Parking brake switch	CAN

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Gasoline Model): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the tire pressure warning system. Make sure that the wireless door lock control system has exited diagnostic mode before performing the following procedure. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

Toyota Avalon (XX50) 2019-2022 Owners Manual