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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (4WD Control Diagnosis) >> DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module >> DTC Information And Inspection >> DTC Description

DTC Description

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.

U0121 sets when an ESC signal is not input during CAN Communication between the 4WD ECM and the ESC Module.

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