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Home >> Hyundai >> 2012 >> Tucson GL, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (4WD Control Diagnosis) >> DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module >> General Information >> DTC Description

DTC Description

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DTC U0121 is set if 4WD ECM can't receive any response signal from ABS.