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Home › Kia › 2021 › K5 GT › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis - 2.5L (15 Of 16) › DTC U0121-F1: Lost Communication With Anti-Lock Brake System (ABS) Control Module › DTC Information › DTC Description

DTC Description

The ECM sets a DTC U0121F1 if it does not receive data from the HECU.

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