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Home >> Lexus >> 2021 >> IS 350 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Automatic Headlight Beam Level Control System - Diagnostic Codes & Circuit Tests) >> Automatic Headlight Beam Level Control System >> Headlight Leveling ECU Power Source Circuit [04/2013 - 10/2016] >> Description

Headlight Leveling ECU Power Source Circuit [04/2013 - 10/2016]: Description

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2020 Lexus IS 350, 2020 Lexus IS 300, 2019 Lexus IS 350, 2019 Lexus IS 300, and 2018 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

This circuit detects the state of the engine switch, and sends it to the headlight leveling ECU assembly.

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