Power Source Circuit [07/2020 - ]: Description
When the power switch is on (IG) or the operation conditions of the headlights are met, the main body ECU (multiplex network body ECU) supplies power to the No. 1 headlight ECU sub-assemblies via the No. 1 integration relay.
When the power switch is on (IG), the main body ECU (multiplex network body ECU) supplies power to the No. 1 headlight ECU sub-assemblies via the IG1-NO. 1 relay.