My current PCM is on the way out, it has left me stranded twice now when it got cold out.
When its acting up I can't connect to PCM at and all the dash gauges are dead, tested with a known good one and problem is 100% in the PCM
Last time it was dead for 3 days so I put it in the toaster oven at 150F for 15 mins and it has worked for the last two weeks with no issue, I suspect some bad or corroded soldering joints inside.

I'm afraid its going to randomly stop working on me at some point, so I bought a PCM (same part number) form a local junk yard.
I have the PIN code to get into the SKIM Module to send the secret key to the PCM however I cannot change the VIN programed into the junk yard PCM.
So I get a VIN mismatch error and the security shuts the vehicle down after 2 secs.

2002 Jeep Grand Cherokee 4.7 JTEC Non-HO
PCM part# 56044810AG

Is it possible to download the failing PCM software and then re-flash it to the junk yard PCM so that it has the same VIN?
Or any other way to change the VIN with VCM Suite?

I'm assuming I need to buy 2 credits one for junkyard PCM VIN and one for original PCM VIN.

I just want to be sure it has that capabilities before spending the money.

Thank you in advance.
-Peter