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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Diagnostic Trouble Code (DTC) Detecting Criteria) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P2270 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

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

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Output voltage of rear oxygen sensor < 0.55 V

Time Needed for Diagnosis:  25000 ms

Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.