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Home >> Lexus >> 2011 >> GX 460 >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System (Exterior) (Diagnostic Codes & Circuit Tests) >> Lighting System >> DTC B124B: Automatic High Beam System >> Description

DTC B124B: Automatic High Beam System: Description

This DTC is stored when the main body ECU detects malfunctions in the automatic high beam system.

DTC Code DTC Detection Condition Trouble Area
B124B Malfunction in automatic high beam system
  • Spiral with sensor cable sub-assembly (steering angle sensor), VSC system or SFI system
  • Inner rear view mirror assembly
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