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Home >> Subaru >> 2006 >> Baja Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0140 - O Sensor Circuit Range/Performance (Bank 1 Sensor 2) - >> Diagnostic Method

Diagnostic Method

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Abnormality Judgment 

Judge NG when the malfunction criteria below are completed.

Judgment Value 

JUDGMENT VALUE (ABNORMALITY JUDGMENT)

Malfunction Criteria Threshold Value
Min. output voltage > 250 mV
Max. output voltage < 500 mV

Time Needed for Diagnosis  : 200 seconds

Malfunction Indicator Light Illumination  : Illuminates when malfunction occurs in 2 continuous driving cycles.

Normality Judgment 

Judge OK when the malfunction criteria below are completed successfully.

Judgment Value 

JUDGMENT VALUE (NORMALITY JUDGMENT)

Malfunction Criteria Threshold Value
Low side diagnosis of rear oxygen sensor voltage Incomplete
Min. output voltage ≤ 250 mV
Max. output voltage ≥ 500 mV