Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0112, P0113, P0182, P0183, P0500, or P2610 are not set.
The engine is running.
The engine must be OFF for 10 hours or more.
The start-up intake air temperature (IAT) is more than 15°C (59°F).
DTC P0181 runs once per drive cycle within the enabling conditions.