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 power 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 power switch is turned off and back to on (IG). 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Gasoline Model): ABS Operates Before Necessary When Braking
DESCRIPTION Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc. PROCEDURE 1. PERFORM TEST MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CIRCUIT) (a) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Signal Check. (b) ...
