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Home >> Lexus >> 2009 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (DTCS P0010 - P0368) >> 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 (TP sensor voltage) 0.24 V or more
Engine Running
Battery voltage 10.5 V or more
Engine coolant temperature 70°C (158°F) or more
IAT sensor circuit (P0110, P0112 and P0113) OK
ECT sensor circuit (P0115, P0117 and P0118) OK
CKP sensor circuit (P0335) OK
TP sensor circuit (P0120, P0121, P0122, P0123, P0220, P0222, P0223 and P2135) OK
Canister pressure sensor circuit (P0450, P0452 and P0453) OK
EVAP leak detection pump (P2401 and P2402) OK
EVAP vent valve (P2419 and P2420) OK