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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Control System Diagnosis - 1.6L (3 Of 3) (Except HEV)) >> DTC U0101: Lost Communication With TCM >> DTC Information >> DTC Description

DTC Description

WARNING: This page is about a different variant/trim than selected.

If there is no message from TCU to ECM through external CAN line, PCU sets DTC U0101.

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