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I am confused: Tech II clone on 2013 base convertible?


I have been reading some of the threads here about Tech II clones. A lot of you recommend having a Tech II clone for DIY work on our cars. As I do research on possibly purchasing a Tech II clone, I keep running across information about changes for the 2013 Corvette model year. One vendor in China told me I need the new GM MDI and a GDS2 software subscription from General Motors for a 2013 Corvette, and not a Tech II for my car. I understand that the MDI is the new system for GM and that it will allow programming. I am assuming that programming means flashing the control modules with updates. We all know what assume means, right? I do not intend to flash any of the control modules with updates, or do any modifications to the control modules. Given that, is the Tech II just a sophisticated code reader on 2013 Corvettes? Can a Tech II clone do anything else on a 2013 base Corvette besides read codes? Will it let me add FOBs on a 2013 vette? Could I do the VIN lockout procedure for the NAV unit with a Tech II on a 2013 vette? I am hoping that someone with a 2013 vette has a Tech II and can weigh in on my questions.



For the way that you are going to be using the Tech II clone, your going to be fine with it.

As for why GM is going to the GM MDI and a GDS2, instead of using a Tech II with TIS2000 software, it because the MDI with GDS2 flashes a hell of lot faster when you have flash a new module with either it orginal firmware or upgraded firmware. Its also faster to use than having to press buttons on the Tech II for basic commands during diagnostics as well.

So in regards to the vets, Tech II clone will cover all the C6 cars and older since the last of the updated firmware on the unit covers from here back. If you do need to reflash something, it’s done via Tis2000 with the Tech II as the pass through device.

On a C7, since GM did not make upgraded firmware to flash into the Tech II’s to cover these cars, then it’s a MDI that is needed instead. As for the MDI’s firmware, they will cover no only the new cars, but the cars that the old Tech II’s used to cover as well.

Now the glitch on the MDI regarding cloning it, since it has to use the GDS2 software for the pass through only device, GDS2 software has not been cracked like Tis2000 software has been isntead.

So the only way that even a clone MDI is going to work, is to have a subscription to GM (Few $K a year) to allow you to use the GDS2 software that has to log into GM each time it used instead.

Hence the Clone Tech II unit you get will already be loaded with the most current firmware, and for most of the stuff you going to use the Tech II clone, will just be using the unit by itself without being connected to a lap top.

Also the cracked copy of Tis2000 that you get with the clone model, does not have to be connected/logged into GM to use it for 99% of the stuff (do not need an account with GM).
Note, if push comes to shove and you can not find a copy of the needed firmware to flash into a unit to upgrade a module, then you can get a one day subscription to GM to pull down the needed file from them.

Another place the people have had good luck with as well.

Credits to Dano523 and reviews from