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Home >> Subaru >> 2012 >> Forester X, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0141 O2 Sensor Heater Circuit (Bank 1 Sensor 2) >> Enable Conditions
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Enable Conditions

ENABLE CONDITION REFERENCE CHART

Secondary Parameters Enable Conditions
Battery voltage ≥ 10.9 V
Elapsed time after starting the engine ≥ 1000 ms
Engine coolant temperature ≥ 75°C (167°F)
A/F sensor element impedance ≤ 50 Ω
A/F sensor heater control duty ≤ 75 %
Rear oxygen sensor heater control duty < 70 %