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Home >> Hyundai >> 2020 >> Santa Fe SE, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 4WD Control System Diagnosis >> DTC U0122: Lost Communication With Vehicle Dynamics Control Module >> DTC Information And Inspection >> DTC Setting Condition
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DTC Setting Condition

Trouble shooting Condition Possible Cause
Main action
  • Monitor the TCS (VDC) CAN signals
  1. Poor contact of connectors of each communication module
  2. Open/short in the CAN communication circuit
  3. Faulty wheel speed sensor
  4. TCS (VDC)
Prerequisite condition
  • Turn the ignition switch on or start the engine
Threshold value
  • A TCS (VDC) message is not received
Diagnosis time
  • 2 sec.
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