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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) (Except STI) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> Outline Of Diagnosis

Outline Of Diagnosis

Detect open circuits of the sensor.

Judge as NG when the element voltage is out of range, or the element current is stuck.