LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P014F >> DTC P0111: IAT Sensor >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

  1. CHECK INTAKE AIR TEMPERATURE (IAT) SENSOR
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Turn ignition switch ON.
    4. Check the voltage between mass air flow sensor (bank 1) terminals as follows.
      Terminals Condition Voltage (V)
      2 and 4 Temperature [°C (°F)] 25 (77) Approx. 2

      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 ".