Thanks for the help everyone.
Ok, I'm looking at the owners manual which is here: manual
(See page 20)
I don't see anything listed as "PCM". What on this list would be considered the PCM?
Also, not knowing the problem was so serious, a local mechanic who doesn't work for Ford did the work on my Fusion. If this is covered under my warranty, can I get reimbursed from Ford if they didn't do the work?
Thanks.