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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 93 (Battery Management System Diagnosis (HEV)) >> DTC U0001: High Speed CAN Communication Bus OFF (C-CAN) >> General Information >> DTC Description

DTC Description

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

BMS ECU sets DTC U0001 when C-CAN Communication error occurs among controllers Although it occurs, the service lamp is not turned on. If it is recovery to a normal state, the current DTC will delete after lasting 2 terms driving cycle (IG ON/OFF), and then generate a historic DTC (H Character is displayed at the end of the DTC code).

At the same time the service lamp turns off, the scantool could delete the historic DTC.

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