Spare Key

[Stradale493]

Did a bit more tinkering on my "green label" immobiliser box today - i used the data dumped from the box memory to burn a new pre-coded transponder and it looks like it works without any need to add it to the stored key table.
As I'd previously manually added a new transponder the "add new key" process wiped all the old transponder key records (the box didn't come with any keys) so there was only 1 valid key stored.
The software appears to have produced an exact duplicate of the key that was already stored in the key table and both key transponders appear to work, but I can't be sure until I can get this immobiliser box paired with an ECU and get a "OK to start engine" message from the ECU.

[Longtimefan]

Graham, are we close to a 'Eureka' moment.

Robin

[john]

Blimey! It's all beyond me , but it sounds promising.

[Longtimefan]

John, I'm with you on this, in fact I'm about 6 fathoms down.

[john]

Well for you and me Robin that is WAY over our heads!��

[Stradale493]

I'm reasonably confident I could produce a working transponder chip for the green labelled box if I was emailed a dump from the memory chip. Also a good probability I can extract the 5 digit security code if needed. Only way to confirm it would be to try one.
I may pick up another off eBay to prove my technique.
Still trying to translate that knowledge to the white label box which looks like it stores the codes in the same location but uses a different algorithm (or substitution cipher) to translate it into the actual pin code

[Longtimefan]

Graham, are you talking about the chip in the key here, and how do you create a 'xxxx' via email? It all sounds very complex, and that I would need very technical assistance to achieve success !!

Robin