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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Engine Control System (DTC/Circuit Diagnosis) (2 Of 5)) >> DTC/Circuit Diagnosis >> DTC P0127: IAT Sensor >> Component Inspection

Component Inspection

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  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.

      Mass air flow sensor

      Condition

      Resistance (kΩ)

      +

      -

      Terminals

      4

      2

      Temperature [°C (°F)]

      25 (77)

      1.800 - 2.200

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace mass air flow sensor. Refer to Removal and Installation .