Condition 5
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
At startup when engine speed is greater than 500 RPM for 2 seconds and ECT is between -39°C (-38°F) and 50°C (122°F), if the difference between IAT and ECT is less than 6°C (11°F) and the difference between ECT and TFT is greater than 40°C (72°F), or if the difference between IAT an ECT is greater than 6°C (11°F) and the difference between ECT and TFT is greater than 60°C (108°F).