OPERATION CHECK CHECK LANE DEPARTURE ALERT MAIN SWITCH (STEERING PAD SWITCH ASSEMBLY) (a) Check the lane departure alert main switch (steering pad switch assembly) on/off operation. (1) Turn the engine switch on (IG). (2) Confirm that the lane departure alert indicator (white) in the combination meter assembly illuminates or turns off when the lane departure alert main switch (steering pad switch assembly) is pressed. HINT: The ON/OFF status of the lane departure alert system (w/ steering control) remains unchanged when the engine switch is turned off and back to on (IG). 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Wiper And Washer System(for Gasoline Model): Washer Motor Circuit
DESCRIPTION When the windshield washer motor and pump assembly receives signals from the windshield wiper switch assembly, it operates to spray washer fluid from the washer nozzle sub-assemblies. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system bef ...
