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Home >> Hyundai >> 2021 >> Elantra SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Dual Clutch Transmission Diagnosis - 1.6L (Except HEV) (3 Of 3)) >> DTC U0100-87: Lost Communication With ECM/PCM >> DTC Information And Inspection >> DTC Description

DTC Description

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When the TCM cannot read the data from the ECM through the CAN-BUS line, the TCM sets this code. CAN-BUS circuit malfunctioning or ECM can be a possible cause of this DTC.