Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Window Defogger System(for Gasoline Model): Rear Window Defogger System does not Operate
DESCRIPTION When the rear window defogger switch on the radio and display receiver assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assembly via CAN communication. When the air conditioning amplifier assembly receives the signal, it turns on the DEF relay to ...
