Offline programming of modules possible with GM MDI or MDI2 diagnostic interface?
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Joined: Aug 2020
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Offline programming of modules possible with GM MDI or MDI2 diagnostic interface?
Hi,
I am looking to buy an diagnostic interface for the C7.
I need it to program some modules.
Is it possible to program the C7 modules with the GM MDI or MDI2 without an internet connection?
According to some sellers of the GM MDI and MDI 2, offline programming is supported for some models but not all.
I was wondering if the C7 is supported for offline programming.
I am aware that online programming is possible in any case with these interfaces but I am interested in offline programming.
I am also aware that online programming is supported with the VCX Nano interface.
I am looking to buy an diagnostic interface for the C7.
I need it to program some modules.
Is it possible to program the C7 modules with the GM MDI or MDI2 without an internet connection?
According to some sellers of the GM MDI and MDI 2, offline programming is supported for some models but not all.
I was wondering if the C7 is supported for offline programming.
I am aware that online programming is possible in any case with these interfaces but I am interested in offline programming.
I am also aware that online programming is supported with the VCX Nano interface.
Last edited by gumpx; Aug 24, 2020 at 02:34 PM.
Le Mans Master
Joined: Feb 2006
Posts: 5,979
Likes: 4,141
From: Kansas City, MO
I think the only offline options are for models sold in developing markets that don't have reliable internet. Think India and eastern Europe. If there's any way to do offline programming of most North American vehicles, it would come as a shock to me.
Last edited by Jeff V.; Aug 24, 2020 at 05:56 PM.
Drifting
Joined: Oct 2011
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From: Olmsted Falls Ohio
St. Jude Donor '12 thru '24
From my experience, the term 'Programming' can cover several procedures. Depends on what one wants to accomplish. Some parameters can be reprogrammed or set to enable different behaviors. For example, I've used the GM MDI Nano device to set afterblow on the HVAC module without any internet connection. I don't know if key fobs can be reprogrammed on the C7 using the GM MDI without a connection, but I have done this on earlier cars using the predecessor TECH-II clone.
Alternatively, if a module needs to be re-flashed then you'll need an internet connection, and a subscription as well for the flash files.
Alternatively, if a module needs to be re-flashed then you'll need an internet connection, and a subscription as well for the flash files.
Le Mans Master
Joined: Oct 2014
Posts: 8,664
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From: Atlanta GA
^^^^^^^^^^^^^^^ This ^^^^^^^^^^^^^^^
I have a nano along with GDS2, GM's own programing software , you can adjust parameters on some modules and its the best diagnostic tool you can buy but as far as programming modules , you have to log into the GM TIS website, type in the VIN and all the files for your car will be listed. For the causal user you buy a two day pass to the website for only 40 dollars
Dave
I have a nano along with GDS2, GM's own programing software , you can adjust parameters on some modules and its the best diagnostic tool you can buy but as far as programming modules , you have to log into the GM TIS website, type in the VIN and all the files for your car will be listed. For the causal user you buy a two day pass to the website for only 40 dollars
Dave
Safety Car
Joined: Mar 2004
Posts: 4,048
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From: South Florida
I know you can buy a special cable to program an ECU with MDI2 outside of the car but I don't know about the other modules. If you're interested in the ECU part, go on YouTube and look up GoatRopeGarage channel. He just did a video on how to do the ECU out if the car with the GM MDI2 stuff. He explains the cables needed.
