Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Hv Model With Cornering Light): Open in IG Circuit (B242E)
DESCRIPTION The headlight ECU sub-assembly operates using the power source voltage input from the IG terminal and ECUB terminal. The IG terminal power source voltage is supplied by turning the IG1-NO. 1 relay to ON. The headlight ECU sub-assembly receives power switch on (IG) signals from the main b ...
