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Home >> Lexus >> 2011 >> CT 200h >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0420)) >> 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 are not present P0102, P0103 (Mass air flow meter)
P0112, P0113 (Intake air temperature sensor)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)
P0335 (Crankshaft position sensor)
P0452, P0453 (Evaporative emission system pressure sensor)
P2401, P2402 (Leak detection pump)
P2419, P2420 (EVAP system vent valve)
Time after engine starts 5 seconds or more
Auxiliary battery voltage 10.5 V or higher
Throttle position (Throttle position sensor voltage) 0.2 to 2 V
Estimated Load 30 to 70%
Engine coolant temperature 70°C (158°F) or higher