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Subaru
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1999
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Legacy Outback, 2.5, Standard
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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 Controls - Self-Diagnostics - Legacy 2.5L & Legacy Outback 2.5L
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Diagnostic Tests
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DTC P0601: Internal Control Module Memory Check Sum Error
DTC P0601: Internal Control Module Memory Check Sum Error
Connect scan tool. Retrieve DTCs. If DTC P0601 is present, replace ECM.