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Home >> Subaru >> 2006 >> Outback XT, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0068 Map/MAF - Throttle Position Correlation >> Diagnostic Method
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Diagnostic Method

Judge as NG when either Low side or High side becomes NG.

Judge as NG when the continuous time of completing the malfunction criteria below becomes 3 seconds or more.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Low side  
Engine speed < 2500 RPM
Throttle position ≥ 10°
Intake air amount every 0.5 engine revs. 1.356 g (0.048 oz)/rev
Output voltage < 1.0 V
High side  
Engine speed 600 ← → 900 RPM
Throttle position < 1.3°
Intake air amount every 0.5 engine revs. 0.4 g (0.014 oz)/rev
Output voltage ≥ 2.36 V

Time Needed for Diagnosis:  3 seconds

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

Judge as OK and clear the NG when both Low side and High side become OK.

Judge as OK when the malfunction criteria below are completed.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Low side  
Engine speed < 2500 RPM
Throttle position ≥ 10°
Output voltage ≥ 1.0 V
High side  
Engine speed 600 ← → 900 RPM
Throttle position < 1.3°
Output voltage < 2.36 V