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Home >> Nissan-Datsun >> 2019 >> Versa Note S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 3) >> DTC/Circuit Diagnosis >> DTC P0101:MAF Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

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

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0101

MAF SEN/CIRCUIT-B1

[Mass air flow (MAF) 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

    (MAF sensor circuit is open or shorted.)

  • Intake air leaks (e.g. poor connection)
  • MAF sensor
  • EVAP control system pressure sensor
  • Intake air temperature sensor
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