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Home >> Nissan-Datsun >> 2012 >> Maxima S >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0153 >> 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, first perform the trouble diagnosis for other DTC.
DTC No. Trouble diagnosis (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 (The sensor circuit is open or shorted.)
  • Intake air leaks
  • MAF sensor
  • EVAP control system pressure sensor
  • Intake air temperature sensor
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