Fig. the force of the air rushing past it
Fig. Compare the readings to the temp/resistance chart
Fig. The IAT sensor can be monitored with an appropriate and Data-stream capable scan tool
Fig. ECT/IAT resistance-to-temperature specifications
Turn the ignition switch OFF.
Disconnect the wiring harness from the IAT sensor.
Measure the resistance between the sensor terminals.
Compare the resistance reading with the accompanying chart.
If the resistance is not within specification, the IAT may be faulty.
Connect the wiring harness to the sensor.