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Home › Kia › 2021 › Sorento Hybrid EX › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (HEV) (11 Of 11) › DTC U01B4-00: Lost Communication With Brake System Control Module › DTC Information › DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item  Detecting Condition  Possible Cause 
DTC Strategy
  • CAN monitoring
  • Poor connector connection
  • faulty IEB
  • IEB circuit
Enable Conditions
  • Normal battery voltage (9 to 16V)
Threshold Value
  • Communication lost with IEB
Diagnostic Time
  • 2s
MIL ON Condition
  • 2 driving cycles
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