Static 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.
- Ignition OFF, disconnect the harness connector at the IAT sensor 2.
- Measure the resistance between the signal terminal A and the low reference circuit terminal B.
- Compare the value to the Temperature Vs Resistance table. Verify the resistance is within 9 percent of the specification. Refer to Temperature Versus Resistance (ECT Sensors)
, Temperature Versus Resistance (EGR Temperature Sensors)
or Temperature Versus Resistance (EGT Sensors)
, Temperature Versus Resistance (Fuel Temperature Sensor)
, Temperature Versus Resistance (IAT Sensor 1)
or Temperature Versus Resistance (IAT Sensor 2)
.
- If not within the specified range, replace the IAT sensor 2.