Toyota Avalon Service & Repair Manual > Window Defogger System(for Gasoline Model): Operation Check
OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the engine switch on (IG). (b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the radio and display receiver assembly. (c) When the vehicle is stopped, confirm that the window defogger system ...
