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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Active Air Flap-Left Diagnosis (HEV) >> DTC U0101: Lost Communication With TCM >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Engine "ON".
  2. Warm up the engine until the temperature reaches the normal temperature at EV mode with engine start.
  3. Using GDS, check if there is an error in TCU system.

    If there is an error in TCU system, first do a troubleshooting for those system and then check A.A.F system.

  4. Is the same DTC displayed again?

    YES 

    NO 

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