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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 Through P0153 >> DTC P0111: IAT Sensor >> Component Function Check
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Component Function Check

  1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect mass air flow sensor (bank 1) harness connector.
    3. Check resistance between mass air flow sensor (bank 1) terminals as follows.
      Terminals Condition Resistance (kΩ)
      1 and 2 Temperature [°C (°F)] 25 (77) 1.800 - 2.200

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Proceed to "DIAGNOSIS PROCEDURE ".

  2. CHECK INTERMITTENT INCIDENT 

    Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Proceed to "DIAGNOSIS PROCEDURE ".