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Home >> Lexus >> 2017 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Automatic Headlight Beam Level Control System - Diagnostic Codes & Circuit Tests >> Automatic Headlight Beam Level Control System >> DTC B2456: Left Headlight ECU Variation Error [10/2016 - 09/2020] >> Description

DTC B2456: Left Headlight ECU Variation Error [10/2016 - 09/2020]: Description

This DTC is stored when a No. 1 headlight ECU sub-assembly LH which is not compatible with the vehicle has been installed.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2456 Left Headlight ECU Variation Error Incompatible No. 1 headlight ECU sub-assembly LH is installed
  • No. 1 headlight ECU sub-assembly LH
  • Main body ECU (multiplex network body ECU)
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