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Home >> Kia >> 2019 >> Optima S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 277 (Multi Function Camera Diagnosis (PHEV)) >> DTC C1604-49: ECU H/W Error >> Component Inspection
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Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Ignition "OFF".
  2. Connect KDS to Data Link Connector (DLC).
  3. Ignition "ON".
  4. Monitor "Diagnostic Trouble Codes (DTC)" with KDS.
  5. Clear any DTCs stored in the system with KDS.
  6. Re-check DTC in the system with KDS.
  7. Is the same DTC stored in the system?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace MFC ECU 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.