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Home >> Toyota >> 2005 >> Matrix Base, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System (SFI) (1ZZ-FE(4WD)) - Diagnostics >> SFI System (1ZZ-FE (4WD)) >> DTC P0101: Mass Or Volume Air Flow Circuit Range/Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever following DTCs not present See LIST OF DISABLE A MONITOR 

Mass Air Flow Meter Rationality (High Voltage): 

MASS AIR FLOW METER RATIONALITY (HIGH VOLTAGE)

Engine speed Less than 2,000 rpm
Engine coolant temperature 70°C (158°F) or more
Mass airflow meter voltage 4.9 V or less

Mass Air Flow Meter Rationality (Low Voltage): 

MASS AIR FLOW METER RATIONALITY (LOW VOLTAGE)

Engine speed More than 300 rpm
Mass air flow meter voltage 0.2 V or more
Fuel cut OFF