Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM internal HO2S voltage is more than 4.81 volts.
- The condition exists for more than 4 seconds or 600 seconds if the fuel level is less than 15 percent.