Joseph, I do have an older Snap On solus. I tried to do the relearn via that as well with the same results. Im assuming if the module is bad its not a plug and play and would need a dealer to program it to vehicle?
You may need to program the new module, but I'm not sure on that, and I currently do not know which module would be impacted. Folks more knowledgeable than my on which module would be involved will chime in.
However, if the replacement module needed to be programmed, and if you had a quality scanner/programmer tool, you could replace the module and program it yourself. For example, if you had a Tech 2 scanner/programmer tool (~$350 on AliExpress.com), you could purchase a GM replacement module at a number of Internet sites (surely, less than ~$300, max ), and program in after installation, using a Tech 2 for less than ~$650, and this would still be MUCH less of a cost than taking the truck to the dealer. And, you would have a great scanner/programmer tool for future diagnostics and programming needs.
I have replaced and programmed my Body Control Module and my Electronic Suspension Control module, and by doing so, I have literally saved thousands of dollars by doing it myself and avoiding the dealer.
