2024 Kia EV9 GT-LineFACTORY OEM SERVICE PROCEDURE

Identity Authentication Unit DTCS

IDENTITY AUTHENTICATION UNIT DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B160F-00 IAU Local CAN Bus OFF
B166D-00 Front Left Door Handle Module Fault
B166E-00 Front Right Door Handle Module Fault
B16C5-00 CAN time-Out DHFL (Door Handle Front Left Module)
B16C6-00 CAN time-Out DHFR (Door Handle FRont Right Module)
B18CC-00 IAU Teaching Error (w/FPM)
B18CF-00 IAU ECU SPI Error
B18D9-00 BLE Address Mismatch
B18DA-00 IAU Teaching Error (w/VIN)
B18DB-00 BDC UFKC Update Error
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.