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Subaru
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2019
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WRX STI Limited
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 9 (Engine Control System (Diagnostics) (Except For STI) (2 Of 4))
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0604: Internal Control Module Random Access Memory (Ram) Error
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General Driving Cycle
General Driving Cycle
WARNING:
This page is about a different variant/trim than selected.
Perform the diagnosis as soon as the ignition switch is turned to ON.