GM J2534/MDI interface and Technical Support policy change
GM has recent changes to their J2534 programming "packaging". In a nutshell GM has changed the way SPS (Service Programming System) looks in TIS2Web by giving it the look and feel of GDS2.
Functionality is still the same. GM is NOT eliminating support for J2534 programming. Some misunderstood this message.
GM only provides hardware support for the GM devices (MDI and MDI 2) . If you are using other J2534 devices you will need to contact the device supplier for hardware support. This has been their policy in the past as well.
See the attached screen shot document.
I used SPS today and the only difference is the first screen where you would normally have your list of interfaces only has 3 choices. J2534, tech2 pass thru and tech2 remote. Select j2534 regardless of which interface your using and a few screens later you will pick your actual interface Guess I should have read the first post. Oh well
Is Bosch involved again? Their name popped up during the load. Someone never met a hierarchy tree that they didn't like. I swear bonuses must be given for devising ways to waste time. Guido
There is a J2534 Wrapper software they added. Do I need that if I'm not using MDI 2? I used my Cardaq plus 3 yesterday no issues 19 Equinox an 16 Cruze without it, no issues.
Hi Caleb: You can cancel the MDI install. I just did it with a customer using a J-tool. HTH, Guido
Thanks Anthony. I guess my question is this. Is the J2534 Wrapper update for the MDI 2 or aftermarket J2534 devices?
Since Drew Technologies published this, I would think the J2534 Wrapper would be for third-party aftermarket devices, but I could be wrong: toolbox.drewtech.com/j2534toolbox/o….pdf
Hi Caleb: As others have stated, you need the wrapper. But it will try to install the MDI also. That part, you can cancel. Then it'll say something like" it may not have installed properly" and ask what you wish to do. I just selected that it "installed properly" since the customer was using a J-tool. Please keep in mind that this was around 7am EDT today. Things may've changed later…
I honestly have had no issues with any year using MDI2. Same can’t be said with CardaqM.
I have to assume you've not tried programming a 96-99 Saturn, a … C, K, S or T truck PCM (certain configurations), or a ...... lol
I have. Guess I’m just lucky that way.
AC Delco tech support recommended not using the MDI-2 to program on vehicles older than … We normally use a Tech 2 or AEZ flasher for those vehicles.
I still have my Tech 2, a Botch VCI and a GM MDI, knowing the potential for flash failures using a MDI 2.
I have all of those also Jaime. I am not saying you won’t have issues. I am saying I haven’t had issues.
I know that Justin. I was more or less warning everybody ( by reminding you) that you have to be careful with certain vehicles since it's not universal to program them.
... and at 7:01 ... Bwahaha
Thank you Donny. During the first few days that the change was made it wasn't possible to choose any device that wasn't a GM tool (they were "greyed-out"). A customer advised me last night that they chose the J-2534 Tech 2, and while using a CarDAQ Plus, was successful in programming a new module. Dave Browning also wrote about that (in a post also in this thread).
Im a little confused on the selection of j2534 reset. Do you only select it after using a different j box than the last time? please clairfy as Im a little new to the gm stuff. Thanks!