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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 Through P0153 >> DTC P006A, P0101: MAF Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P006A or P0101 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
DTC DETECTION LOGIC

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P006A MAP-MAF CORELTION-B1 (Manifold pressure - mass air flow correlation) A difference exceeding the specified value develops between a value transmitted from the manifold absolute pressure sensor to ECM and an estimated intake pressure of intake manifold calculated by ECM, based on a mass sir flow sensor signal.
  • Harness or connectors (The sensor circuit is open or shorted.)
  • Mass air flow sensor
  • Manifold absolute pressure sensor
  • EVAP control system pressure sensor
  • Intake air leaks
  • Intake air temperature sensor
P0101 MAF SEN/CIRCUIT-B1 (Mass air flow sensor circuit range/performance) A difference exceeding the specified value develops between a signal transmitted from the mass air flow sensor to ECM. Mass air flow sensor