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Home >> Toyota >> 2021 >> C-HR Limited >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/ AFS) - Diagnostic Codes & Circuit Tests >> LIGHTING SYSTEM (w/ AFS) >> Power Source Circuit [09/2019 - 08/2020] >> Description

Power Source Circuit [09/2019 - 08/2020]: Description

When the engine switch on (IG) or the operation conditions of the headlights are met, the main body ECU (multiplex network body ECU) supplies power to the headlight ECU sub-assemblies via the No. 1 integration relay.

When the engine switch on (IG), the main body ECU (multiplex network body ECU) supplies power to the headlight ECU sub-assemblies via the IG1-NO. 1 relay.