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Home >> Subaru >> 2024 >> Ascent Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2195: A/F/O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 >> General Description >> Diagnostic Method

Diagnostic Method

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

JUDGMENT VALUE

Malfunction Criteria Threshold Value
λ value More than 1.15
Output voltage value of rear oxygen sensor 0.55 V or more

Time needed for diagnosis:  10 s

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