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Home >> Subaru >> 2020 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0141: O2 Sensor Heater Circuit Bank 1 Sensor 2 >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Battery voltage ≥ 10.9 V
Elapsed time after starting the engine ≥1000 ms
A/F sensor element impedance ≤35Ω
A/F sensor heater control duty ≤75%
Rear oxygen sensor heater control duty < 75%