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Subaru
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2015
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Outback 2.5i
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Repair and Diagnosis (Single Page)
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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 P0031 Ho2S Heater Control Circuit Low (Bank 1 Sensor 1)
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Enable Conditions
Enable Conditions
ENABLE CONDITIONS
Secondary Parameters
Enable Conditions
Battery voltage
≥ 10.9 V
Front oxygen (A/F) sensor heater control duty
< 87.5 %