'00 to '01 PATS nightmare.
Just ran into this crappy problem tonight. I needed to switch the PCM on my 2000 and have a spare one from a 2001 (whole vehicle, actually). Went to start it and it wouldn't fire. Threw my SCT programmer/scanner on it and it said "VEHICLE THEFT", "VEHICLE IMMOBILIZED". There is no PATS disable feature on my programmer, so I'm going to switch the steering columns (that have the PATS bullcrap in them) and use the matching keys from the '01. Might as well swap the GEM modules while I'm at it as well. Both vehicles are 5.0 AWD, with the same equipment, so I don't anticipate any problems, other than some creative cursing for the neighbors to hear!
I'm not towing it to Ford and I only have one key for the 2000 anyway, so I can't just program another one myself, so I'll be making good use out of the two keys from the 2001.
Anything else I might be missing??? I sure hope not! When I switch things over later this week (weather permitting), I'll post my results.