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Subaru
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2016
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Forester 2.5i, Eng CD FB25BA, Standard Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls (Diagnostics) (H4DO)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0141 O2 Sensor Heater Circuit (Bank1 Sensor2)
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Execution Condition
Execution Condition
Secondary Parameters
Execution condition
Battery voltage
≥ 10.9 V
Elapsed time after starting the engine
≥ 1000ms
A/F sensor heater control duty
≤ 70%
A/F sensor element impedance
≤ 82Ω
Rear oxygen sensor heater control duty
< 70%