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Home › Kia › 2005 › Optima EX, 2.4 6 › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control System/Fuel System - 2.4L (A/T) › MFI Control System › Description › Checking The Procedures (Self-Diagnosis)

Checking The Procedures (Self-Diagnosis)

NOTE:
  • When battery voltage is low, diagnostic trouble codes cannot be read. Be sure to check the battery for voltage and charging system before starting the test.
  • Diagnosis memory is erased if the battery or the ECU connector is disconnected. Do not disconnect the battery before the diagnostic trouble codes are completely read and recorded.
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