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Home >> Hyundai >> 2012 >> Veracruz GLS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (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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This code related to communication line between HECU (ABS) and "4WD-ECM" is set when CAN signal from HECU (ABS) can't received for more than 1 sec or ECU internal error occur. If failure is detected "4WD-ECM" prohibits the "ITCC" control and cuts the current to control coil.

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