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Home › Genesis › 2021 › G80 2.5T Advanced, AWD › Repair and Diagnosis › Transmission › Transmission Control Systems › 4WD Control System Diagnosis › DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module › DTC Information And Inspection › DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Check CAN signal
  1. CAN Communication Line open/short
  2. IEB (Integrated Electric Booster)
Prerequisite Condition
  • Turn engine ON
Threshold Value
  • No IEB CAN message is received
Diagnostic Time
  • 2 sec
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