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Home >> Infiniti >> 2011 >> FX35 RWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VQ35HR) - FX35 - DTC U0101, U0164, U1001, & P0011 Through P0133 / P0153 >> DTC P0127: IAT Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK GROUND CONNECTION
    1. Turn ignition switch OFF.
    2. Check ground connection M95. Refer to Ground Inspection in "CIRCUIT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace ground connection.

  2. CHECK INTAKE AIR TEMPERATURE SENSOR

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Replace mass air flow sensor (bank 1) (with intake air temperature sensor). Refer to "REMOVAL AND INSTALLATION ".

  3. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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