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DTC Detection Logic

DTC DETECTION LOGIC CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U0101 Lost communication with TCM When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) with TCM for 2 seconds or more.
  • CAN communication line between TCM and ECM
  • CAN communication line open or shorted
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