FixVault

DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0101

MAF SEN/CIRCUIT-B1

(Mass or volume air flow "A" circuit range/performance)

Diagnosis condition

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Signal (terminal)

Mass air flow sensor (bank 1) signal

Threshold

  • A low frequency from the sensor is sent to ECM under light load driving condition
  • A high frequency from the sensor is sent to ECM under heavy load driving condition

Diagnosis delay time

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