FixVault

Monitor Scantool Data

  1. Install Scantool and select the "Current data" mode on scantool.
  2. Check the "IAT SENSOR" parameter on scantool.
    1. Specification:
      TEMPERATURE RESISTANCE REFERENCE CHART

      Temperature °C (°F)  -40 -30 -20 0 20 80 100 110 120
      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

      (Pull up resistance is Approx. 2.2 kΩ and above specification's error range is 2~3%.)

      Fig 1: Scantool Screen Display - IAT Sensor Parameter
      G07702929
  3. Is IAT sensor's signal near the specified value?

    YES

    1. Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector.
    2. Fault was repaired and ECM memory was not cleared.
    3. If the problem works out, Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO

    1. Go to "Inspection & Repair" procedure.
    WARNING: Scantool Function Information:
    1. Service Data: Scantool provides two parameters for IAT sensor.
    DATA DESCRIPTION REFERENCE CHART

    Data Description Unit.
    IAT SENSOR VOLTAGE V
    IAT SENSOR °C (°F)