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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting System (W/ AFS) - Diagnostic Codes (1 Of 2) >> LIGHTING SYSTEM (w/ AFS) >> DTC B2410: Headlight Swivel ECU LH Communication; DTC B2411: Headlight Swivel ECU RH Communication [12/2019 - 11/2023] >> Description

DTC B2410: Headlight Swivel ECU LH Communication; DTC B2411: Headlight Swivel ECU RH Communication [12/2019 - 11/2023]: 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
B2410 Headlight Swivel ECU LH Communication Detection condition: 
  1. The ignition switch is ON.

Malfunction status: 

  1. LIN communication error

Malfunction duration: 

  1. 10 seconds or more
  • Harness or connector
  • Headlight ECU sub-assembly LH
  • Headlight ECU sub-assembly RH
  • Headlight assembly LH
  • Headlight assembly RH
AFS
B2411 Headlight Swivel ECU RH Communication Detection condition: 
  1. The ignition switch is ON.

Malfunction status: 

  1. LIN communication error

Malfunction duration: 

  1. 10 seconds or more
  • Harness or connector
  • Headlight ECU sub-assembly RH
  • Headlight ECU sub-assembly LH
  • Headlight assembly RH
  • Headlight assembly LH
AFS