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Home >> Subaru >> 2016 >> Forester 2.5i, Eng CD FB25BA, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Diagnostics) (H4DO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0134 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.

JUDGEMENT VALUE SPECIFICATION

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

Time Needed for Diagnosis:  5000ms

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.

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