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Home › Genesis › 2018 › G80 3.8, AWD › Repair and Diagnosis › Transmission › Transmission Control Systems › 4WD Control Diagnosis › DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module › DTC Information › DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • ABS input CAN signal monitoring
  1. Poor connection
  2. CAN line open or short
  3. Wheel Speed Sensor
  4. ABS ECU.
Enable conditions
  • IG "ON" or Engine "ON"
Threshold value
  • No CAN signal of ABS1
Detecting time
  • 2 sec.
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