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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 64 (HEV Motor System Diagnosis (HEV)) >> DTC U1003: Lost Communication With TCM (H-CAN) >> General Information >> DTC Description

DTC Description

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The MCU sets DTC U1003 if No message (TCM) during 0.5s has not been received through the H-CAN signal.

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