GM does call 27 03/04 "device control security". Its in GMW3110, and every other dbc/document.Tazzi wrote:Ohhhh I see. 27 03 is actually called engineer/manufacture access. I was not aware of the 2017+ locking out after moving though, thats a new one.
The algorithm is on GM's servers, but.. can generate the required seeds by simulating a module to GM though, so I can give that a go.
And then 27 FB/FC is "supplier security seed/key"...which I think has even higher level permissions/privileges than device control.
Ive already tried subbing in a device control seed during a normal SPS programming event, it doesnt work. That was a while ago that I tried it though.
I assume because the server was expecting the seed to end in 06 for the programming event, so it rejected the seed ending in 01/0C....