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Subaru
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2019
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Outback 2.5i
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Continuously Variable Transmission (Diagnostics)
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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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Outline Of Diagnosis
Outline Of Diagnosis
Detect the malfunction in RAM area of the TCM.
Judge as NG if an attempt to write to RAM area failed.