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Home >> Kia >> 2009 >> Optima EX, 2.7 4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (3 Of 3) - 2.7L >> DTC P0604: Internal Control Module Random Access Memory (Ram) Error >> Scan Tool Diagnostics >> Monitor Scan Tool Data
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Monitor Scan Tool Data

  1. Connect scan tool to Data Link Connector (DLC).
  2. IG "ON".
  3. Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.
  4. Read "DTC Status" parameter.
    Fig 1: Screen Display - DTC Status Parameter
    G06418515Courtesy of KIA MOTORS AMERICA, INC.
  5. Is parameter displayed "Present fault"?

    YES 

    NO 

    • Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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