Transmission module changed before buying the car

[husseinelhajj30]

Hey everyone, hope you are doing well.
I have a 406 from year 2003 with automatic transmission.
The VIN number is: VF38B6FZR3S016192.
Gear changes are not normal since i bought the car 5 years ago and this is the 3rd gearbox since i bought the car, still same abnormal gear changes.
2 weeks ago ABS light cane suddenly and on the scanner when i try to read ABS codes I get “Not equipped”.
The mechanic found out that the transmission module was CHANGED before me buying the car and this is mot the original one that came with the car when it was built. All the programming possibilities were done to no avail.
The current module is attached to this post.
What i know is that the number on the RIGHT is the part number which should be considered when looking for a replacement.
-> Is there a way to obtain the ORIGINAL module that came with the car??
-> has someone had this problem?