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Home >> Lexus >> 2019 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System (Ext) - Diagnostic Codes (1 Of 3) >> Lighting System >> DTC B2410: Headlight Swivel ECU LH Communication; DTC B2411: Headlight Swivel ECU RH Communication; DTC B2424: Headlight Beam Level Control Motor LH Lost Communication; DTC B2425: Headlight Beam Level Control Motor RH Lost Communication [12/2017 - 10/2020] >> Description
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DTC B2410: Headlight Swivel ECU LH Communication; DTC B2411: Headlight Swivel ECU RH Communication; DTC B2424: Headlight Beam Level Control Motor LH Lost Communication; DTC B2425: Headlight Beam Level Control Motor RH Lost Communication [12/2017 - 10/2020]: Description

Each headlight ECU sub-assembly and headlight swivel and leveling motor communicate via LIN communication.

The headlight swivel and leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective headlight ECU sub-assembly and sends its operating state to the headlight ECU sub-assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
B2410 Headlight Swivel ECU LH Communication Detection condition: 
  1. Engine switch on (IG)

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly LH
  • Headlight ECU sub-assembly LH
Headlight ECU sub-assembly LH w/ AFS (Front-lighting Adaptive System)
B2411 Headlight Swivel ECU RH Communication Detection condition: 
  1. Engine switch on (IG)

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly LH
  • Harness or connector
  • Headlight ECU sub-assembly RH
  • Headlight ECU sub-assembly LH
Headlight ECU sub-assembly LH w/ AFS (Front-lighting Adaptive System)
B2424 Headlight Beam Level Control Motor LH Lost Communication Detection condition: 
  1. Engine switch on (IG)

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly LH
  • Headlight ECU sub-assembly LH
Headlight ECU sub-assembly LH -
B2425 Headlight Beam Level Control Motor RH Lost Communication Detection condition: 
  1. Engine switch on (IG)

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly LH
  • Harness or connector
  • Headlight ECU sub-assembly RH
  • Headlight ECU sub-assembly LH
Headlight ECU sub-assembly LH -