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Home >> Subaru >> 2022 >> Forester Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0140 O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 >> Diagnostic Method

Diagnostic Method

G13202435

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
Rear oxygen sensor signal (B) Less than 0.825V

Time needed for diagnosis:  1000 ms

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.