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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) (PHEV) >> DTC U0109-00: Lost Communication With Fuel Pump Control Module >> Wiring Inspection >> Module Circuit Inspection >> Power Circuit Inspection

Power Circuit Inspection

  1. Ignition "OFF"
  2. Refer to FUEL PUMP CONTROL MODULE (FPCM) and disconnect FPCM connector.
  3. Ignition "ON"
  4. Measure voltage between Pin No. 10 (Power) terminal of FPCM harness connector and chassis ground.

    Specification  : B+

  5. Is measured value within specification?

    YES 

    NO 

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