Conditions for Setting 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 ECM detects that the HO2S 2 internal resistance is not within the expected range.
- The above condition is exists for greater than 4 seconds.