Install Scantool and select the "Current data" mode on scantool.
Check the "IAT SENSOR" parameter on scantool.
Specification :
Temperature ℃(℉) | -40(-40) | -30(-22) | -20(-4) | 0(32) | 20(68) | 60(140) | 100(212) | 110(230) | 120(248) |
Resistence(kΩ) | 45.3 | 25.6 | 15.1 | 5.8 | 2.5 | 0.6 | 0.19 | 0.16 | 0.13 |
Voltage(V) | 4.48 | 4.34 | 4.12 | 3.46 | 2.57 | 1.06 | 0.39 | 0.34 | 0.27 |
(Pull up resistance is Approx. 2.2kΩ and above specification’s error range is 2~3%.)
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.
Scantool Function Information
Service Data : Scantool provides two parameters for IAT sensor
Data Description | Unit. |
IAT SENSOR VOLTAGE | V |
IAT SENSOR | °C(°F) |
