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Home >> Subaru >> 2021 >> Outback Limited XT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2.4L) (Diagnostics) (1 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0134: A/F/O2 Sensor Circuit No Activity Detected Bank 1 Sensor 1 >> General Description >> Diagnostic Method
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Diagnostic Method

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
Input voltage (+)
Or,
Sensor reference voltage
Or,
Input current
More than 2.65 V
3.6 V or less
-45 μA or more
and
45 μA or less

Time needed for diagnosis 

Input voltage (+)  : 30000 ms

Sensor reference voltage  : 2000 ms

Input current  : 2000 ms

Malfunction indicator light illumination  : Illuminates as soon as a malfunction occurs.