Conditions For Running DTC

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0112, P0113, P0116, P0117, or P0118, are not present.
The coolant temperature is more than 19°F (-7°C).
The air temperature is more than 19°F (-7°C) or more.
The engine is running less than 22 minutes (1320 seconds).