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Subaru
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2013
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Outback Premium, Standard Trans
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Repair and Diagnosis
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Engine Performance
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System
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Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO)
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC U0073 Control Module Communication Bus "A" Off
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General Driving Cycle
General Driving Cycle
Perform the diagnosis continuously after starting the engine.