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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 P0068 Map/MAF - Throttle Position Correlation >> Diagnostic Method

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 more than the predetermined time.

Judgment Value 

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Low side  
Engine speed < 2500 RPM
Throttle position ≥15°
Output voltage <2.12V
Engine load > 0.87 g/rev
High side  
Engine speed 500 ←→ 850 RPM
Throttle position <3.5°
Output voltage ≥ 2.66 V
Engine load < 0.6 g/rev

Time Needed for Diagnosis: 

3 Seconds (Low side)

10 Seconds (High side)

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 REFERENCE CHART

Malfunction Criteria Threshold Value
Low side < 2500 RPM
Engine speed ≥ 10°
Throttle position ≥1.3V
Output voltage  
High side 600 ←→ 900 RPM
Engine speed <1.3°
Throttle position <2.6V
Output voltage