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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) (STI)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> Diagnostic Method

Diagnostic Method

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If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value 

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Front oxygen (A/F) sensor impedance > 500 Ω

Time Needed for Diagnosis:  5000 ms

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.