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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (Diagnostics) (P2101 To U1712) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2196: A/F/O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 >> 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
λ value < 0.85
Output voltage value of rear oxygen sensor < 0.2 V

Time needed for diagnosis:  10000 ms

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