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Home >> Kia >> 2017 >> Cadenza Technology >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (6 Of 6) >> DTC U0109-00: Lost Communication With Fuel Pump Control Module >> Component Inspection
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Component Inspection

  1. Ignition "OFF".
  2. Ignition "ON".
  3. Connect KDS/GDS to Data Link Connector (DLC).
  4. Monitor "Diagnostic Trouble Codes (DTC)" with KDS/GDS.
  5. Clear any DTCs stored in the system with KDS/GDS.
  6. Operate the vehicle within Conditions for setting DTC in General Information.
  7. Re-check DTC in the system with KDS/GDS.
  8. Did the same DTC is stored in the system?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace TCM and then go to "VERIFICATION OF REPAIR " procedure.

    NO 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF REPAIR " procedure.
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