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Subaru
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2015
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WRX Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) (Except STI)
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
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Enable Conditions
Enable Conditions
ENABLE CONDITIONS
Secondary Parameters
Enable Conditions
Battery voltage
≥ 10.9 V
Engine speed
≥ 500 rpm
<When out of range>
Front oxygen (A/F) sensor impedance
> 403 Ω
<When stuck>
Front oxygen (A/F) sensor impedance
≤ 403 Ω