Dynamic Test
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Test the IAT sensor 2 by varying the sensor temperature while monitoring the sensor resistance.
- Compare the readings with the Temperature Vs Resistance table and verify that the resistance is within 9 percent of the specification.
- If not within the specified range, replace the IAT sensor 2.
NOTE:
A thermometer can be used to test the sensor off the vehicle in heated water.