FixVault

Identity Authentication Unit DTCS

WARNING: This page is about a different car, the 2023 Hyundai Palisade. However, it is still accessible from the selected car via links, so may be relevant.
IDENTITY AUTHENTICATION UNIT DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B1603-00 CAN Bus Off (C-CAN)
B160F-00 IAU Local CAN Bus OFF
B165B-00 IAU ECU I2C Error
B165C-00 IAU Teaching Error (W/IBU)
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)
B18CF-00 IAU ECU SPI Error