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Home >> Hyundai >> 2021 >> Palisade Calligraphy, FWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> SBW Control Unit Diagnosis >> DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module >> DTC Information And Inspection >> DTC Detecting Condition
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DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
DTC Strategy
  • CAN Communication Monitoring
  1. Poor connection
  2. Open or short in CAN communication line
  3. Faulty related module
Enable Condition
  • Ignition "ON"
  • Battery voltage is above 10V
Threshold Value
  • ESC CAN timeout is detected
Detecting Time
  • More than 2.1 sec
MIL ON Condition
  • 2 driving cycles