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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

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

Judgment Value 

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
Battery voltage ≥ 10.9 V
Time of heater duty ≥ 70% ≥ 30 sec.
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.