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Home >> Hyundai >> 2017 >> Elantra GT Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC U0101: Lost Communication With TCM >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN communication status check
  1. Poor connection
Enable Conditions
  • IG ON
Threshold Value
  • No message time from TCU via external CAN
Diagnostic Time
  • Continuous
MIL ON Condition
  • 2 driving cycle
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