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Home >> Subaru >> 2014 >> Impreza Base, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnostic Trouble Code (DTC) Detecting Criteria (Except Hybrid) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0141: O2 Sensor Heater Circuit (Bank1 Sensor2) >> Enable Conditions

Enable Conditions

ENABLE CONDITIONS

Secondary Parameters Enable Conditions
Battery voltage ≥ 10.9 V
Elapsed time after starting the engine ≥ 1000 ms
Engine coolant temperature ≥ 60 °C (140 °F)
A/F sensor element impedance ≤ 50 Ω
A/F sensor heater control duty ≤ 75 %
Rear oxygen sensor heater control duty < 70 %
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