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Subaru
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2021
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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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Continuously Variable Transmission (Diagnostics)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0601: Internal Control Module Memory Checksum Error
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Outline Of Diagnosis
Outline Of Diagnosis
Detect the malfunction in ROM area of the TCM.
Judge as NG when the consistency in the ROM area is lost.