Conditions for Running the DTC

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0116, P0117, P0118, P0125 (if applicable), P0128, P0502, P0503 are not set.
The engine run time is more than 180 seconds.
The vehicle speed sensor (VSS) indicates that vehicle speed is less than 24 km/h (15 mph).
The mass air flow (MAF) is less than 10 g/s.
The engine coolant temperature (ECT) is more than 60°C (140°F).
The diagnostic runs continuously when the above conditions are met.