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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (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

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
Secondary parameters Execution condition
Battery voltage 10.9 V or more
Estimated temperature of the rear oxygen sensor element 450°C (842°F) or more
Cumulative duty ratio of the rear oxygen sensor heater after engine starting 54400% or more
Rear oxygen sensor offset signal More than 1.8 V
and
Less than 2.2 V
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