Conditions for Setting the DTC: P1153
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S 1 voltage did not have enough switches from rich-to-lean and lean-to-rich during a 90-second monitoring period.
- This diagnostic runs once per trip.