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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (1 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0102, P0103: MAF Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

If DTC P0102 or P0103 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to  DTC LOGIC  . 

DTC No. CONSULT screen terms
(Trouble diagnosis content)		 DTC detecting condition Possible cause
P0102 MAF SEN/CIRCUIT-B1
(Mass or volume air flow "A" circuit low input)		 An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors

    (The sensor circuit is open or shorted.)

  • Intake air leakage
  • Mass air flow sensor
P0103 MAF SEN/CIRCUIT-B1
(Mass or volume air flow "A" circuit high input)		 An excessively high voltage from the sensor is sent to ECM.
  • Harness or connectors

    (The sensor circuit is open or shorted.)

  • Mass air flow sensor
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