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Home >> Subaru >> 2019 >> Ascent Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2271: O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2 >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Battery voltage
Time while the fuel shut-off function is in operation
Estimated temperature of the rear oxygen sensor element		 10.9 V or more
5000 ms or more
450°C (842°F) or more
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