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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (1 Of 4)) >> DTC/Circuit Diagnosis >> P0101 MAF Sensor >> DTC Description >> PR25DD engine >> DTC Detection Logic

DTC Detection Logic

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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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