fault code 17522

[deedub82]

O2 sensor B1 S2. Does this mean both sensors or just one? Precat or post? Where do I find the post cat sensor? And how difficult is it to find where the wiring connects? I followed the precat sensor as far back as I could but could not locate where it is plugged in? Any advice/suggestions would be greatly appreciated! PLease PM me with any knowledge or info! Thanks!

[dangerous_dave]

If you have a 18t you only have 1 bank and sensor 2 is after the cat. Bank 1 is always the passenger side so if you have a v6, bank 2 is the drivers side.

[dangerous_dave]

What's the full fault description? Is it for the heater circuit or for something else? It's to early in the AM for me to look it up cuz I'm lazy.