This is a tutorial on syncing a used ECM to a Chrysler Town and Country using Autel Maxisys. This vehicle is a 2005 but the process is the same for pretty much any Chrysler. The newest I've done with the Maxisys is a 2016 Dodge Grand Caravan and the process was identical.
Select Diagnostics
Then Chrysler
Next Automatic Selection
Make sure to manually enter the VIN and do not use the Read function. If you use the read function it will read the incorrect VIN out of the recently installed used ECM. After you enter the VIN click OK.
Although not necessary, it's always a good idea to check and clear all fault codes so select Diagnosis.
And then Auto Scan.
If you want, after reading the fault codes, you can go into each module and review them or just use the Quick Erase function to clear them.
Scroll down to Skim/Skreem and double click the line or single click the arrow.
Select Special Functions
Then PCM Replaced
Click OK
Enter the PIN and then click OK
If the PIN was entered correctly click OK
Click OK
Make sure the VIN is correct and click Yes
Click OK
Click OK
You're done, that's all there is to it.
2004-2007 Chrysler Town & Country Used ECM Replacement with Autel Maxisys by Jay Hanf.pdf