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Subaru
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2021
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Crosstrek Hybrid
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 17 (Engine Control System (2.5L) (Diagnostics) (1 Of 4))
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Diagnostic Procedure With Diagnostic Trouble Code (DTC)
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DTC P0031: A/F/O2 Heater Control Circuit Low Bank 1 Sensor 1
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General Description
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Execution Condition
Execution Condition
WARNING:
This page is about a different variant/trim than selected.
Secondary parameters
Execution condition
Battery voltage
10.9 V or more
Front oxygen (A/F) sensor heater control duty
Less than 87.5%