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Home >> Scion >> 2013 >> xD Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes P0010 - P0365) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever following DTCs not present None
(Throttle position sensor voltage - (learned throttle position sensor closed position voltage + ISC voltage) 0.24 V or higher, and less than 2 V
Time after engine starts 5 seconds or more
Battery voltage 10.5 V or higher
Estimated Load 30% or higher, and less than 70%
Engine coolant temperature 70°C (158°F) or more
Mass air flow meter sensor circuit fail (P0102, P0103) Not detected
Intake air temperature sensor circuit fail (P0112, P0113) Not detected
Engine coolant temperature sensor circuit fail (P0115, P0117, P0118) Not detected
Crankshaft position sensor circuit fail (P0335) Not detected
Throttle position sensor circuit fail (P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135) Not detected
EVAP system pressure sensor circuit fail (P0452, P0453) Not detected
EVAP leak detection pump fail (P2401, P2402) Not detected
EVAP system vent valve fail (P2419, P2420) Not detected