LEMON Manuals
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Subaru
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2012
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Forester X, Automatic 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 P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
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General Driving Cycle
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General Driving Cycle
Always perform the diagnosis continuously.