CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check if there is any foreign matter caught between the display and exterior frame of the multi-display. OK: No foreign matter is caught between the display and exterior frame of the multi-display. HINT:
(a) Check for foreign matter on the display. OK: The display is clean.
(b) Touch the display in the area where the switch malfunction occurs. OK: A "+" mark appears at the touched position.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Gasoline Model With Cornering Light): Headlight LH Circuit (B2439,B243A)
DESCRIPTION The headlight ECU sub-assembly LH and headlight ECU sub-assembly RH internally boost the power supply voltage to ensure a constant supplied current for the low beam LED of their respective headlight. By monitoring the LED power supply voltage, abnormal current and malfunctions can be det ...