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Home >> Subaru >> 2018 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (P000A To P015B) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0134: A/F / O2 Sensor Circuit No Activity Detected Bank 1 Sensor 1 >> 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 DESCRIPTION

Malfunction Criteria Threshold Value
Front oxygen (A/F) sensor impedance More than 450Ω

Time needed for diagnosis:  5000ms

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

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