Conditions for Setting the DTC: P2A00
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S 1 voltage signal remains within the 300-600 mV range for more than 3.6 seconds.
- This diagnostic runs continuously.