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Home >> Infiniti >> 2010 >> FX50 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VK50VE) - DTC U0101, U0113, U1003, U1001, U1024 & P0011 Through P0159 >> 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).

  3. CHECK INTERMITTENT INCIDENT 

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END