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Home >> Lexus >> 2012 >> IS 250 Base, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0175)) >> 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 voltage 0.2 V or more, and less than 2 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
Estimated load 30% or more, and less than 70%
MAF sensor circuit fail (P0102 and P0103) Not detected
IAT sensor circuit fail (P0112 and P0113) Not detected
ECT sensor circuit fail (P0115, P0117 and P0118) Not detected
CKP sensor circuit fail (P0335) Not detected
TP sensor circuit fail (P0120, P0121, P0122, P0123, P0220, P0222, P0223 and P2135) Not detected
Canister pressure sensor circuit fail (P0452 and P0453) Not detected
Leak detection pump fail (P2401 and P2402) Not detected
Vent valve fail (P2419 and P2420) Not detected