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Home >> Lexus >> 2017 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/ Automatic Headlight Beam Level Control System) (Diagnostic Codes) (2 Of 2) & Circuit Tests) >> Lighting System (W/ Automatic Headlight Beam Level Control System) >> Circuit Tests >> Power Source Circuit [10/2015 - 08/2019] >> Description

Power Source Circuit [10/2015 - 08/2019]: Description

The main body ECU (multiplex network body ECU) receives IG signals and supplies power to the headlight ECU sub-assembly via the H-LP relay.

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