Conditions for Setting 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.
- The AIR system does not meet expected flow conditions during AIR pump Phase 1 operation.
- DTC P0411 sets with in 22 seconds when the above conditions are met.