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 pressure conditions during AIR pump Phase 2 operation.
- DTC P2440 sets with in 8 seconds when the above conditions are met.