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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 5) >> Engine (ECM) >> DTC P0111: IAT Sensor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR 

    Check intake air temperature sensor. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Replace mass air flow sensor (with intake air temperature sensor). Refer to AIR CLEANER AND AIR DUCT : Removal & Installation .

  2. CHECK INTERMITTENT INCIDENT 

    Check intermittent incident. Refer to Inspection .

    INSPECTION END

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