To any prospective DIYers out there who come across this problem, my advice to you is
DON'T DO IT YOURSELF. Save the time and frustration and get it done by a mechanic. I just spent over three hours dealing with this disaster in my garage. Sure, I fixed it, but three other problems came about in the process.
Now, my brake and airbag lights are lit up yellow and won't go off, the central locking button by the shifter is inoperable, and the drivers side door won't lock at all. Using the key does nothing, I can't physically push the little lever down because it feels like it's jammed. So I effectively took one step forward and three steps back.
Oh yeah, the whole experience is frustrating as hell too. The whole procedure is a pain in the ass and I wouldn't recommend it to anyone who isn't actually getting paid to do it.
So, I'll say it again. Save yourself the headache and just have someone else do it for you.