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Home >> Subaru >> 2006 >> Outback R >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0691 Fan 1 Control Circuit Low >> Diagnostic Method

Diagnostic Method

Abnormality Judgment 

Judge as NG when the continuous time of completing the malfunction criteria below becomes more than 2.5 seconds.

Judgment Value 

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
After engine starting 1 second or more
Engine speed ≥ 500 rpm
Ignition switch ON
Battery voltage ≥ 10.9 V
Terminal voltage level when ECM out-puts OFF signal Low level

Time Needed for Diagnosis:  2.5 seconds

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

Normality Judgment 

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

Judgment Value 

JUDGMENT VALUE CHART

Malfunction Criteria Threshold Value
After engine starting 1 second or more
Engine speed ≥ 500 rpm
Ignition switch ON
Battery voltage ≥ 10.9 V
Terminal voltage level when ECM out-puts OFF signal High level