Mike's Workshop Manuals
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Subaru
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2021
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Ascent Base
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transaxle (Diagnostics)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC U0073: Control Module Communication Bus Off
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Outline Of Diagnosis
Outline Of Diagnosis
Detect malfunction of CAN communication.
Judge as NG when CAN communication failure has occurred.