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Home › Hyundai › 2021 › Palisade Calligraphy, 4WD › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (9 Of 9) › DTC U0109-00: Lost Communication With Fuel Pump Control Module › DTC Information and Inspection › DTC Detecting Condition

DTC Information and Inspection: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Message Monitoring
  1. Poor Connector Connection
  2. Faulty P-CAN Communication Circuit
  3. Faulty FECM
  4. Faulty ECM
Enable Condition
  • Engine Run Time is more than 2s
  • Battery voltage higher than 10V
Threshold Value
  • CAN communication error with FECM
Diagnostic Time
  • Continuous
MIL ON Condition
  • No MIL On (DTC only)
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