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Home >> Toyota >> 2015 >> Prius One >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Control System (Diagnostic Codes (P0010-P0171)) (Except Plug-In)) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [08/2014 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.
Monitor runs whenever following DTCs are not stored None
All of the following conditions are met -
Time after engine starts 5 seconds or more
Auxiliary battery voltage 10.5 V or higher
Throttle position (Throttle position sensor voltage) 0.2 V or higher, and less than 2 V
Estimated Load 30% or more, and less than 70%
Engine coolant temperature 70°C (158°F) or higher
Mass air flow meter circuit fail (P0102, P0103) Not detected
Intake air temperature sensor circuit fail (P0112, P0113) Not detected
Engine coolant temperature sensor circuit fail (P0115, P0117, P0118) Not detected
Crankshaft position sensor circuit fail (P0335) Not detected
Throttle position sensor circuit fail (P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135) Not detected
Canister pressure sensor circuit fail (P0452, P0453) Not detected
Leak detection pump fail (P2401, P2402) Not detected
Vent valve fail (P2419, P2420) Not detected