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Home >> Infiniti >> 2009 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Engine Control System - DTCS U1000 To P0153) >> P0127 IAT Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
  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