It doesnt seem to be much of a deterrent to most thieves - they've got all the electronic gizmos anyway these days from what I see on TV. Jules

They do indeed. The crooks are ahead of the manufacturers and the police, but it's designed to help reduce thefts by the casual crook. 2009 Rimini Red SE TD4. Soon to be sold.
Hyundai Ionic 5 Ultimate on order.
Gone. 2006 Tonga Green i6 HSE.

Your explanation of the VIN coding is both credible and convincing ... however that does not make it any more appealing in the real world. Here, the owner should have free access to full control over all elements of the vehicle's components. Should this be by a freely issued code from the manufacturer upon proof of ownership, or not, could be a matter for debate. But free uninhibited access should be the owners right. These restrictive practices should be illegal.

As for SDD being able to overwrite an existing VIN in the ABS Brake Control Module, I would be delighted if you could prove that my failure to do this was due to operator error - in my opinion that is more than possible.

When you used SDD to set up a replacement module, what option did you use?
I've found the CONFIGURE NEW MODULE option works for a second hand ECM, which the LR dealer told me it wouldn't work but it did. I was even able to configure the incorrect Stop Start ECM to my vehicle and it still worked. 2009 Rimini Red SE TD4. Soon to be sold.
Hyundai Ionic 5 Ultimate on order.
Gone. 2006 Tonga Green i6 HSE.

Well done with those successes. When I tried it, I also used the Configure New Module route, but it wasn't having it. I tried several times without any joy, that's when I gave up and sent it to ControlUnits.

Good afternoon. Did you manage to solve the problem with the abs block? My car has the same problem, I haven't been able to solve it for two years.

Good day Uyrikss,

Ah yes, the good old ABS issue. If you look back, you can see the process I had to go through to get the system to recognise the new unit - get it "virginalised" and then re-programmed as a new module via SDD. Once this was done all should have been well, except it isn't quite. If your problem is the same as the one I have now - ABS locking on one side until stationary - then I'm afraid I can't help, as I've just lived with it and could not be bothered to investigate further. Sometimes life is just too short, and motivation too scarce.
Either way, I wish you the best of luck with yours.

Chris