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Home >> Subaru >> 2019 >> Forester Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0140: O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Battery voltage
Estimated temperature of the rear oxygen sensor element
Cumulative duty ratio of the rear oxygen sensor heater after engine starting
Rear oxygen sensor offset signal		 10.9 V or more
500°C (932°F) or more
11800% or more
1.8V - 2.2V
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