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Old 12-27-2017, 05:30 PM
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Default GM Tech 2 alternative

Good afternoon to all. Hopefully everyone had a Merry Christmas. Recently ran into an issue where i wanted to replace my aftermarket pioneer (didn't like it and much prefer my smart phone) with a stock unit. Found a cheap OEM unit on eBay. After install, i realized that factory head units are tied to the original cars VIN. No problem, i'll pay the dealership to fix the issue. Only problem they outright say they CANNOT guarantee they can fix the locked status of my radio and i'd still have to pay. As an IT/Network technician, i couldn't imagine telling people i can't guarantee i can fix your network or pc problems, but you still owe me full price plus tax.

Enter the VXDIAG VCX Nano. I was looking into clone tech II's for the past couple weeks and stumbled onto this gem. There is very little info on this product, but i still had more faith in this thing and myself more than my own dealership so i took the plunge. For $119 on amazon, i basically have the software version of a tech II device. I was able to unlock my radio in a matter of minutes. Have never used a real or upscale scan tool device so i can't compare but just poking through some of the menus, it looks like i can do anything a tech II can. Kool thing is that the tech2win software runs just fine on my Windows 10 64bit laptop. Would be even cooler with a surface pro or similar tablet. I'm sure there are reasons for owning an actual tech II device over just software, but i wanted to try something different out of curiosity and explore other options for those that want an even cheaper alternative.
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Old 12-27-2017, 06:38 PM
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I am no IT smart but still have to ask, how do you make the connection between the VCX Nano and the computer?
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Old 12-27-2017, 07:55 PM
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That screen does look exactly like my Tech II menus. Some sort of emulator I'm guessing. Nice find.

Edit: Curious how you connected the laptop to your obd 2 port?

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Old 12-27-2017, 08:48 PM
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Originally Posted by doomi View Post
That screen does look exactly like my Tech II menus. Some sort of emulator I'm guessing. Nice find.

Edit: Curious how you connected the laptop to your obd 2 port?
you plug the device into the OBD2 port, and then you either use Wifi back to the laptop to connect that way ($129), or you can use a usb cable instead ($119).


Even through the device is using GDS2, MDI and Tech2win software on the laptop side, the only thing that I have to question is if you can drive firmware upgrades through it to reprogram modules if needed as well?

Now the bad news that maybe the op can bring us up to speed, did you mange to get the tech2 win to install on a 64 bit machine with 64 bit windows, or did you install tech2win and the rest of the software a 32windows machine only isntead.

First GDS2 works with the included software as a virtual machine with VMWare running in a decent hardware, no low end Pentiums or Celeron, please Core2Duos and up, Minimum 4GB Ram, etc..

Second and thanks for the seller assistance, Tech2Win works ONLY in a physical system with Windows Xp or Windows 7 x86 (32Bit) installation. It does not work any other way. It DOES NOT WORK in a x64 (64Bit) environment. Did I say only 32Bit?
Truth is, for $119, would just about cover what most are using the tech II for on the vet anyways, but still back to the question if you have to have a X86 machine (32 bit machine with 32 bit windows software) to load the needed tech2 win software to, since it does look its a no-go on a X64 machine with window 64 bit windows install , and even a no go of trying to VM a X86 shell to run tech2 win that way on a X64 loaded version of windows on a 64 bit machine instead.

So the real question since most of the newer laptops are 64 bit, and running windows 10 64 bit, is this what you loaded the software to, and had no problems running it? Or did you have a 32 bit machine laying around to load the software to instead.
Note, there is a work around to get a 32 bit program to run on 64 bit software, but it no joy, and not sure how its going to reach to GDS2 running in a VM shell at the same time.
https://benpiper.com/2011/11/forcing...s-environment/

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Old 12-27-2017, 11:13 PM
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Originally Posted by Boilerman View Post
I am no IT smart but still have to ask, how do you make the connection between the VCX Nano and the computer?
As Dano says, it connects via a usb cable that comes with the device and then the device itself connects to your cars OBD2. Yes you can even reprogram modules. Its basically the same you would do it with the clone tech 2. You use the GDS2 software. It comes with the device, but i'm not sure if its a cracked version and would still require one to obtain a subscription from the ACdelco website (some one will correct me if im wrong). I'm not sure if there is some kind of test i could do to verify that without actually reprogramming a module???
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Old 12-27-2017, 11:14 PM
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Very interesting. I am just about to pull the trigger on a Tech 2 clone, thanks to some great info from the members of this forum, and now this thing shows up. OP says he has it running on a Windows 10 64bit laptop, Something to think about as an alternative. Thanks OP.
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Old 12-27-2017, 11:18 PM
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Originally Posted by Dano523 View Post

So the real question since most of the newer laptops are 64 bit, and running windows 10 64 bit, is this what you loaded the software to, and had no problems running it? Or did you have a 32 bit machine laying around to load the software to instead.
Note, there is a work around to get a 32 bit program to run on 64 bit software, but it no joy, and not sure how its going to reach to GDS2 running in a VM shell at the same time.
https://benpiper.com/2011/11/forcing...s-environment/

https://www.amazon.com/VXDIAG-Tech2W.../dp/B074365Q6H
I was only speaking for the tech2win software. That i did run straight from a Windows 10 64-bit laptop. Website says that GDS2 only runs from a Windows XP/7 32-bit computer. If there is a simple GDS2 test that anyone can think of for me to try, i then confirm or deny this claim. FYI i have a windows XP, 7, 8, and 10 32 & 64 bit laptops. So i could try on any operating system.

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Old 12-28-2017, 02:48 AM
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VXDIAG VCX Nano GDS2 and Tech2Win Diagnostic Programming System for GM/Opel Wifi Version.


Amazon Amazon


https://www.aliexpress.com/af/vxdiag...ewCP=y&catId=0

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Old 12-28-2017, 07:10 AM
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Good find.
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Old 12-28-2017, 05:28 PM
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BGspot, now that you do have the tool, and living in a high humidity area, might want to turn the HVAC after blow on.

Connect the scan tool.
Turn ON the ignition, with the engine OFF.
Select HVAC Module.
Select HVAC Systems Automatic.
Select Special Functions.
Select HVAC.
Select Afterblow Option.
Select ENTER to enable the afterblow.
When done, use the soft key to save changes.
When afterblow has been enabled by the scan tool the blower motor will operate between medium and high speed for 4 minutes after the engine has been turned off.
What is will do is turn the HVAC fan on for 4 mins, 10 mins after you tune the car off, to dry the HVAC coils off to prevent mold from growing on them.

P.S, at $100 that amazon had a coupon for to knock it down from $119, just ordered up one of the USB cable units. When it gets here, will go through it against my Tech II units, to see if there is anything missing between the two.

Also, since I have a few Gm module firmware flash file for my car stored, will check to see if it will drive them to re-flash one of the module correctly through the tool/ the software it comes with.

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Old 12-29-2017, 10:00 AM
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^Good deal. Not gonna lie, wish i had more stuff to do with my car so i could play with mine further. But i will look at the HVAC option.

I fired up the GDS2 software and that indeed runs off Windows XP. But it does come with the VM software. So far everything works under my Windows 10, but like i said the GDS2 is running in the VM software.
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Old 01-02-2018, 09:21 PM
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Tech 2 clone died last week and was only used a few times since I received it in Nov, bad dc convertor I think. I needed a replacement and ordered the VXDIAG VCX Nano and should be here Thursday. I came here to see if anyone else has and behold someone has. Thanks for addressing the windows 10 64bit working with the tech2win software. I will have to program a BCM for a 2012 gs with the VXDIAG VCX Nano . Oh and I wanted to add the research I have done is the clone MDI 2 is basically a nano in the MDI 2 case.

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Old 01-03-2018, 01:28 AM
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Are you able to command the ABS module open/closed for a true brake bleed? And I have not had a Tech2 connected to my ZR1 to see if I have different menus or not (doubtful), but does it show the ability to command a intercooler pump on/off? Really interested in this as I’ve been looking into the knock off Tech2s for a while now to avoid having to go to my dealer for anything (so incompetent they rotated tires on my dually and thus installed the wheels with the unfinished side out and never noticed)
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Old 01-03-2018, 02:00 AM
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Originally Posted by SIK02SS View Post
Are you able to command the ABS module open/closed for a true brake bleed? And I have not had a Tech2 connected to my ZR1 to see if I have different menus or not (doubtful), but does it show the ability to command a intercooler pump on/off? Really interested in this as Iíve been looking into the knock off Tech2s for a while now to avoid having to go to my dealer for anything (so incompetent they rotated tires on my dually and thus installed the wheels with the unfinished side out and never noticed)
Bleeding ABS with Tech II
Perform a manual or pressure bleeding procedure. If the desired brake pedal height results are not achieved, perform the automated bleed procedure below.

The procedure cycles the system valves and runs the pump in order to purge the air from the secondary circuits normally closed off during normal base brake operation and bleeding. The automated bleed procedure is recommended when air ingestion is suspected in the secondary circuits, or when the BPMV has been replaced.

Automated Bleed Procedure

Notice: The Auto Bleed Procedure may be terminated at any time during the process by pressing the EXIT button. No further Scan Tool prompts pertaining to the Auto Bleed procedure will be given. After exiting the bleed procedure, relieve bleed pressure and disconnect bleed equipment per manufacturers instructions. Failure to properly relieve pressure may result in spilled brake fluid causing damage to components and painted surfaces.

1. Raise the vehicle on a suitable support.
2. Remove all four tire and wheel assemblies.
3. Inspect the brake system for leaks and visual damage. Refer to Brake Fluid Loss or Symptoms - Hydraulic Brakes. Repair or replace as needed.
4. Inspect the battery state of charge.
5. Install a scan tool.
6. Turn ON the ignition, with the engine OFF.
7. With the scan tool, establish communications with the EBCM. Select Special Functions. Select Automated Bleed from the Special Functions menu.
8. Bleed the base brake system.
9. Follow the scan tool directions until the desired brake pedal height is achieved.
10. If the bleed procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed procedure:
- If a DTC is detected, refer to Diagnostic Trouble Code
(DTC) List and diagnose the appropriate DTC.
- If the brake pedal feels spongy, perform the conventional brake bleed procedure again.
11. When the desired pedal height is achieved, press the brake pedal in order to inspect for firmness.
12. Remove the scan tool.
13. Install the tire and wheel assemblies.
14. Inspect the brake fluid level.
15. Road test the vehicle while inspecting that the pedal remains high and firm
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Old 01-03-2018, 02:09 AM
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Should have my unit something this week, and will go through it with a fine tooth comb to see that is really needed.

On tech2win, although the op is stating that its working in 64 bit mode, really want to go through it to double check if it needs to run in win 7 compatible mode for everything to work "correctly" instead.

GDS2 is run in VM mode under a XP shell so that should be trouble free, but need to check out SDS to see if it has a connection to AC delco/if it has been set up with some sort of an asian account to pull down firmware files. Here, got a feeling that you would need to get a one day subscription in order to pull down the firmware from GM, but want to see if it can still used firmware files that have been stored without needing a SDS account.

Hence if you do need an account to pull firmware files since you can't find them elsewhere, you want to pull down all the firmware file for your car and store them when you do have that one day account.

As for cycling the ABS pump with either a tech II or tech2win with the nano, and note that you do the procedure before you power flush/bleed, then after as well.
also, since the abs pump is not used much for most drivers, and you do have a tech II/ nano on hand, not a bad idea to run the pump about twice a year. This will cycle the stagnant fluid out of the pump, to refill it with fluid that has been recirculating; but still do a complete power brake flush around every two years still.

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Old 01-03-2018, 02:30 AM
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If your thinking about a TECH 2 or have one that died like mines, this may help fix it.

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Old 01-04-2018, 04:28 PM
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Originally Posted by Dano523 View Post

On tech2win, although the op is stating that its working in 64 bit mode, really want to go through it to double check if it needs to run in win 7 compatible mode for everything to work "correctly" instead.
Yep that is a good point. Because i only needed to do one thing to my car, i don't really have anything else to try with the tech2win software. I would image that since the software/windows 10 had no problems communicating with my car, i'd like to believe every other function should work but you never know. It's great that you'll be able to compare the two to see if there are any differences
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Old 01-04-2018, 05:00 PM
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Originally Posted by bgspot View Post
Yep that is a good point. Because i only needed to do one thing to my car, i don't really have anything else to try with the tech2win software. I would image that since the software/windows 10 had no problems communicating with my car, i'd like to believe every other function should work but you never know. It's great that you'll be able to compare the two to see if there are any differences
Putting tech2 win into win 7 compatibility mode is not hard to do.

Go to the start icon for tech2win, right click it and go to properties, and see if you can click the box and make it run it in win 7 mod.

If the box is grayed out and you can not do it this way, click on the windows icon, type in run in the search box, then find run program made for a previous version of windows in list it will bring out and click on that to open that program. From here, it pretty straight forward to find Tech2 win, and change tech2 win so it running in win 7 compatible mode.

As for SDS, need to see that if it has for any type of account already set up in it's memory. Hence in VM, gds2 should run fine, but without a active account in SDS, it never going to connect to GM to pull firmware files down that way instead.

Hell who knows, and if the SDS program on the disco does not have a hidden account on it, maybe you can access GM via the cloud software isntead.

http://blog.vxdiagshop.com/2016/09/1...sis-comes-out/

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Old 01-04-2018, 07:33 PM
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Had I known this was available, I would have chosen this option over a TechII clone. Dealing with the cables on the TechII is like wrestling a boa constrictor. This looks to me like a cleaner, simpler, cheaper alternative.
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Old 01-05-2018, 09:26 AM
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Originally Posted by Dano523 View Post
Putting tech2 win into win 7 compatibility mode is not hard to do.

Go to the start icon for tech2win, right click it and go to properties, and see if you can click the box and make it run it in win 7 mod.

If the box is grayed out and you can not do it this way, click on the windows icon, type in run in the search box, then find run program made for a previous version of windows in list it will bring out and click on that to open that program. From here, it pretty straight forward to find Tech2 win, and change tech2 win so it running in win 7 compatible mode.

As for SDS, need to see that if it has for any type of account already set up in it's memory. Hence in VM, gds2 should run fine, but without a active account in SDS, it never going to connect to GM to pull firmware files down that way instead.

Hell who knows, and if the SDS program on the disco does not have a hidden account on it, maybe you can access GM via the cloud software isntead.

http://blog.vxdiagshop.com/2016/09/1...sis-comes-out/
Ya it isn't. I'm an IT/networking guy. I was just saying i didn't have to do anything other than install the software to accomplish what i needed to do. Still waiting for your comparison though as this would help further the cause with DIY's tackling their own gremlins or projects without going to the dealership.

Last edited by bgspot; 01-05-2018 at 09:29 AM.
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