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Home >> Subaru >> 2019 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0068: Map/MAF - Throttle Position Correlation >> Diagnostic Method

Diagnostic Method

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

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment value

Low 

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Intake manifold pressure Less than 58.7 kPa (440.4 mmHg, 17.3 inHg)

High 

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Intake manifold pressure 58.7 kPa (440.4 mmHg, 17.3 inHg) or more

Time needed for diagnosis:  5000 ms

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.