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Home >> Hyundai >> 2005 >> XG350 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> Trouble Shooting For DTC >> DTC P0112: Intake Air Temperature Circuit Low Input >> Scantool Diagnostics >> Monitor Scantool Data
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Monitor Scantool Data

  1. Ignition "OFF" & Engine "OFF".
  2. Install Scantool and Ignition "ON" & Engine "ON".
  3. Monitor Intake Air Temperature Sensor parameter on Current data.

    Specification: (Error range is 2~3%)

    TEMPERATURE AND RESISTANCE REFERENCE CHART

    Temperature (°C/°F) -40 (-40°F) -30 (-22°F) -20 (-4°F) 0 (32°F) 20 (68°F) 80 (176°F) 100 (212° F) 110 (230° F) 120 (248° F)
    Resistance (kΩ) 45.3 25.6 15.1 5.8 2.5 0.33 0.19 0.16 0.13
    Voltage (V) 4.48 4.34 4.12 3.46 2.57 0.64 0.39 0.34 0.27
    Fig 1: Mass Air Flow Sensor Current Data
    G07374976
    Fig 2: Screen Display - IAT Sensor Data At Open
    G07374977
    Fig 3: Screen Display - IAT Sensor Data At Short
    G07374978
  4. Is Current data displayed correctly?

    YES

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO

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