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2010
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Optima EX, 2.7 4
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System Diagnosis (3 Of 3) - 2.7L
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DTC P0604: Internal Control Module Random Access Memory (Ram) Error
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General Information
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DTC Description
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
DTC Description
If the RAM in ECM has errors, ECM sets P0604 and MIL (Malfunction Indication Lamp) turns on.