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Home >> Toyota >> 2019 >> C-HR LE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (W/ Canister Pump) - Diagnostic Codes (P0010-P011B) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [05/2018 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Throttle position voltage 0.2 V or higher, and less than 2 V
Time after engine start 5 seconds or more
Battery voltage 10.5 V or higher
Engine coolant temperature 70°C (158°F) or higher
Estimated load 30% or higher, and less than 70%
Mass air flow meter sensor circuit fail (P0100, P0102, P0103, P010C, P010D) (Pending + MIL) Not detected
Intake air temperature sensor circuit fail (P00AC, P00AD, P0110, P0112, P0113) (Pending + MIL) Not detected
Engine coolant temperature sensor circuit fail (P0115, P0117, P0118) (Pending + MIL) Not detected
Crankshaft position sensor circuit fail (P0335, P0337, P0338) (Pending + MIL) Not detected
Throttle position sensor circuit fail (P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135) (Pending + MIL) Not detected
EVAP System Pressure Sensor circuit fail (P0450, P0452, P0453) (Pending + MIL) Not detected
Leak detection pump fail (P2401, P2402) (Pending + MIL) Not detected
Evap system vent valve fail (P2419, P2420) (Pending + MIL) Not detected