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Home >> Infiniti >> 2021 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 5) >> DTC/Circuit Diagnosis >> DTC P0101: MAF Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0101

00

MAF SEN/CIRCUIT-B1

(Mass or Volume Air Flow Sensor A Circuit Range/Performance)

Diagnosis condition

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Signal (terminal)

Mass air flow sensor signal

Threshold

  • A high voltage from the mass air flow sensor is sent to ECM under light load driving condition
  • A low voltage from the mass air flow sensor is sent to ECM under heavy load driving condition

Diagnosis delay time

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