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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 4) >> DTC/Circuit Diagnosis >> DTC P0101: MAF Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:

If DTC P0101 is displayed with other DTC, perform the trouble diagnosis for other DTC. 

DTC No. Trouble diagnosis name
(Trouble diagnosis content)		 DTC detecting condition Possible cause
P0101 MAF SEN/CIRCUIT-B1
(Mass air flow sensor circuit range/performance)
  • A high voltage from the sensor is sent to ECM under light load driving condition.
  • A low voltage from the sensor is sent to ECM under heavy load driving condition.
  • Harness or connectors

    (The sensor circuit is open or shorted.)

  • Mass air flow sensor
  • EVAP control system pressure sensor
  • Intake air leaks
  • Intake air temperature sensor
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