What specifically is wrong with your PCM? They don't fail often. Is he SURE it is bad or assuming it is?
Car-part.com or uneedapart.com are your best bet at finding a used PCM. I scored two 03 pcm's from I need a part.com
SIA electronics in Illinois is who I send my pcm's to for repair services.
Any 99-04 PCM will work. Currently running an 03 PCM with an 01 harness. Moved one wire on the PCM harness and all is good.
Good luck with your hunt!
Here ya go...
Ford Lightning ECU PCM ECM engine computer interchange chart
Dude! This post is old! I'm in Milwaukee! One power wire fell out of the back of the cd player of my 03. Blew about 8ish fuses? I used to get robbed all the time or broke 13 yr old gear! But was horrified to see my harness butchered to fire hazard levels. Jeff W helped me get a 2002 harness. Electrical gremlins out the ass.
Lesson to all dont be lazy disconnect the capacitor (even a dinky 1F one). It was holding full power even though I hate it. That was the biggest they had up north.
I need help anyone that can help undo the dash seats whole bit. It will work again. And I'm going to push the Hell out of it with new amps, cap, redesigned speaker box.
As far as cracking boxes/amps/computers open I'm pretty damn decent. Both of my amps got melted different times when a major wire slipped out. They still work! For real I am worried about an electrical fire. Trying to pull out the super melted relay out. That bitch is practically welded to the fuse/relay box.
Y'all please help. If left to my own devices enough I might cause horrendous damage. Took time off work. I don't give up and leave it like a normal person. Thought of looking for a master car electronics person locally to help but don't trust ppl here. I want a Ford person. Anyways. Happy 2021!