Monitor Scantool Data
- Install Scantool and select the "Current data" mode on scantool.
- Check the "IAT SENSOR" parameter on scantool.
- 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%.)
- Specification:
- Is IAT sensor's signal near the specified value?
YES
- Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector.
- Fault was repaired and ECM memory was not cleared.
- If the problem works out, Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to "Inspection & Repair" procedure.
WARNING: Scantool Function Information:- Service Data: Scantool provides two parameters for IAT sensor.
DATA DESCRIPTION REFERENCE CHARTData Description Unit. IAT SENSOR VOLTAGE V IAT SENSOR °C (°F)