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2016
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WRX Limited, Automatic CVT Trans
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Repair and Diagnosis
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Transmission
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Automatic Trans
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CVT Diagnostic Trouble Code Detecting Criteria
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P0604 Internal Control Module Random Access Memory (Ram) Error
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Outline Of Diagnosis
Outline Of Diagnosis
Judge the malfunction in RAM area of the TCM.
Judge as NG if an attempt to write to RAM area failed.