Our 2006 XK8 failed the smog test as it pulled this code. States, “HO2S Heater Control Circuit Low Bank 1. Sensor 2”.

2 questions:

1. Is this downstream?
2. Found a drive cycle instruction sheet for various codes posted by Graham, I think. Are these still valid and will apply to my model and year?

Having it replaced tomorrow.

Thanks

 

Downstream, yes.