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Home >> Genesis >> 2024 >> GV70 2.5T >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Integrated Led Headlamp Control Unit_LH Diagnosis >> DTC B1621-01: ECU Hardware >> DTC Information And Inspection >> Inspection Guide 2

Inspection Guide 2

  1. Monitor the lamp illumination, while controlling multi-function switch.
  2. In hardware malfunctioning, keep two of low-beam module in upper side as the status before malfunctioning, regardless of multi-functional operation.
    • Replace the head lamp controller (ILCU) and go to the "Verification of Vehicle Repair".
  3. In proper operation of hardware, the multi-functional operation result will illuminate.