Quote:
Originally Posted by cmitchell17
With Global A GM vehicles, GEN 5 Camaro+, any control module is somehow locked to the VIN. I'm not sure how but before a module will talk to all other modules it has to be programmed through GM TIS web service which goes to a server and somehow allows the ECM to talk. So if you got a junkyard ECM to swap in it wouldn't work unless you connected it to GM TIS. I think the subscription to GM TIS is thousands of dollars per year.
I guess if you got a subscription or found someone or got a dealer to flash a spare PCM to your vehicle you maybe could do it? I would like to know if anyone knows any way around this?
With the 2019+ you have this security and any calibration written to the PCM has to have a encrypted digital signature before the ECM will accept it. This encryption is basically impossible to break, but yet GM still has a budget for their racing development programs even though they now have security that makes tuning impossible.
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I guess the bean counters reasoned that the money saved from a drop in warranty claims by disabling tuning outweighs the money lost from losing prospective buyers(due to not being able to tune)