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Home >> Subaru >> 2021 >> Crosstrek Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (2.5L) (Diagnostics) (1 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0101: Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance >> General Description >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

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 SPECIFICATIONS (LOW)

Malfunction Criteria Threshold Value
Airflow amount Less than 9.9g/s (0.35 oz/s)
JUDGMENT VALUE SPECIFICATIONS (HIGH)

Malfunction Criteria Threshold Value
Airflow amount 9.9g/s (0.35 oz/s) or more

Time needed for diagnosis: 

Low: 5000 ms

High: 5000 ms

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