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Home >> Hyundai >> 2018 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) (PHEV) >> DTC U0109: Lost Communication With Fuel Pump Control Module >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN 1 Signal monitoring
  1. Poor connection or damaged harness
  2. Faulty PCM
  3. Faulty FPCM
Enable Conditions
  • Ignition switch is on
  • Battery voltage is between 9V and 16V
Threshold Value
  • No message from FPCM
Diagnostic Time
  • 2 sec.
MIL On Condition
  • 2 driving cycle
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