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Home >> Subaru >> 2007 >> Outback XT Limited, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> Diagnostic Method
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Diagnostic Method

Judge as NG when the continuous time of completing the malfunction criteria below becomes 5 seconds or more.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Voltage ≥ 10.9 V
Time after engine starting ≥ 50 seconds
Time of heater control duty at 70% or more ≥ 36000 milliseconds
Front oxygen (A/F) sensor impedance. ≥ 500 Ω

Time Needed for Diagnosis:  5 seconds

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