When Monitored

WARNING: This page is about a different variant/trim than selected.

There are several different catalyst efficiency monitoring windows. Each specific window has several different enable conditions. The best opportunity for the catalyst efficiency monitor to run is:

With the Engine warmed up above 60°C (140°F).
Engine speed between approximately 1000 rpm and 2500 rpm.
Vehicle speed between 3 mph and 80 mph.
Under moderate engine load.
No other O2 Sensor circuit faults active.