Conditions for Setting the DTC
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the BARO pressure changed more than 5 kPa within 20 seconds.
OR
- The ECM detects that the BARO pressure changed more than 30 kPa since the last ignition cycle.
- The conditions exist for at least 4 seconds.