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Home >> Genesis >> 2021 >> G70 2.0T Prestige, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Active Air Flap Diagnosis >> DTC U0101: Lost Communication With TCM >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN signal from TCM
  1. Poor Connection at each module connector.
  2. Open or Short in CAN communication line.
  3. Faulty TCU
Enable Conditions
  • IG "ON" or Engine "ON"
Threshold Value
  • No receiving CAN signal from TCU
Diagnosis Time
  • 2 seconds
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