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Home >> Lexus >> 2009 >> ES 350 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control (SFI) System (Diagnostic (Codes P0010-P043E)) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions

Typical Enabling Conditions

Monitor runs whenever following DTCs not present None
Throttle position (TP sensor voltage) 0.2 to 3.6 V
Time after engine start 5 seconds or more
Battery voltage 10.5 V or more
Engine coolant temperature 70°C (158°F) or more
IAT sensor circuit OK
ECT sensor circuit OK
CKP sensor circuit OK
TP sensor circuit OK
EVAP system pressure sensor circuit OK
EVAP leak detection pump OK
EVAP vent valve OK