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Home >> Lexus >> 2010 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0339)) >> 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 None
TP (Throttle position) sensor voltage 0.2 to 2 V
Engine Running
Battery voltage 10.5 V or more
ECT 70°C (158°F) or more
Estimated load 30 to 70%
IAT sensor circuit (P0112, P0113) OK
ECT sensor circuit (P0115, P0117, P0118) OK
CKP sensor circuit (P0335) OK
TP sensor circuit (P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135) OK
Fuel tank pressure sensor circuit (P0452, P0453) OK
Leak detection pump (P2401, P2402) OK
Vent valve (P2419, P2420) OK