Sorry, I thought I was messing with the immo, now I'm not sure what I was messing with.. lol.. I remember the vin was locked and I couldn't write it even with an OS write.. Afterwards I could write the vin.. Though it was immo code but memory is not so good and I could not find my notes..Tazzi wrote:Im pretty sure I still had a 10 second delay when attempting that, You can tell by the error responses code returned (I cant recall exactly off top of my head). First thing I tried was spamming at 1 second intervals but it would only actually register the 10th second item as that was within the wait limit. Although this could be an ECU specific kinda thing... even though its suppose to be standardized.ironduke wrote:I was able to unlock it with minimal delay between attempts.
I knew there was a time limit since testing on an ECU with a known code resulted in it skipping over it it time limit was not satisfied.
Anyways, back on topic.. Could he put the old vin back in the ecu and perform an immo learn(ecm learn) and log the command/responses? This would give him the immo code since it's supposed to be tied to the vin? I assume GM has a database of vins and immo codes? Is this the same database that a gm dealer would access for key codes?? I used to have access but they tightened up exactly who has all the keys to the kingdom, lol..