Conditions for Running the DTCs

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The engine run time is greater than 3 minutes.
The engine is idling for greater than 10 seconds.
The DTCs runs continuously once the above conditions are met.