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Home >> Subaru >> 2006 >> Outback R >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0037 Ho2S Heater Control Circuit Low (Bank 1 Sensor 2) >> Diagnostic Method

Diagnostic Method

Judge as NG when the continuous time until completing all the malfunction criteria below becomes more than 2560 milliseconds.

Judgment Value 

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Output voltage level Low
Rear oxygen sensor heater control duty < 75%

Time Needed for Diagnosis:  2.56 seconds

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

Judge as OK and clear the NG when the malfunction criteria below are completed.

Judgment Value 

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Output voltage level High