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Home >> Infiniti >> 2012 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0153 >> DTC P0127: IAT Sensor >> Component Inspection (Intake Air Temperature Sensor)
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Component Inspection (Intake Air Temperature Sensor)

  1. CHECK INTAKE AIR TEMPERATURE SENSOR
    1. Turn ignition switch OFF.
    2. Disconnect mass air flow sensor harness connector.
    3. Check resistance between mass air flow sensor terminals as per the following.
    Terminals Condition Resistance (kΩ)
    1 and 2 Temperature [°C (°F)] 25 (77) 1.94 - 2.06

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace mass air flow sensor (with intake air temperature sensor). Refer to "REMOVAL AND INSTALLATION ".

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