LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Lighting System (Ext) (Hybrid) - Diagnostic Codes (1 Of 2)) >> LIGHTING SYSTEM (for HV Model) >> DTC B124B: Automatic High Beam System [08/2021 - ] >> Description

DTC B124B: Automatic High Beam System [08/2021 - ]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

The main body ECU (multiplex network body ECU) determines the status of the automatic high beam system based on the automatic high beam system signal from the forward recognition camera.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
B124B Automatic High Beam System Malfunction in automatic high beam system
  • Front camera system
  • Dynamic radar cruise control system
  • Lane tracing assist system
  • Road sign assist system*
  • Pre-collision system
  • Hybrid control system
  • Electronically controlled brake system
  • CAN communication system
  • Forward recognition camera
  • Main body ECU (multiplex network body ECU)
 Main Body
  1. *: w/ Road Sign Assist System
scientia non olet · About LEMON Manuals