Tech 2 Purchase

[George B]

the vcxnano functions as a mdi2, but yes the gds2 software requires a sub unless you can find the hacked version, still need to pay for programming though

I wonder if this one has the software?

EDIT: It looks like it comes on a hard drive that you need to plug into a laptop somehow.

Not sure how I feel about using a laptop in the truck. The tech2 was so convenient.

I like the added programming capabilities of the MDI

 

[Doubeleive]

I wonder if this one has the software?

EDIT: It looks like it comes on a hard drive that you need to plug into a laptop somehow.

Not sure how I feel about using a laptop in the truck. The tech2 was so convenient.

I like the added programming capabilities of the MDI

which one? I am pretty sure I got all my working software off of the chinacardiags website, they have various download links, the software can be a real p.i.t.a. though to get working.

 

[George B]

which one? I am pretty sure I got all my working software off of the chinacardiags website, they have various download links, the software can be a real p.i.t.a. though to get working.

Sorry, I forgot the link.

2023 WIFI GM MDI 2 Interface with GDS2 Tech 2 Win HDD Software

Wifi GM MDI 2 Multiple Diagnostic Interface,supports all Vauxhall /Opel 16 pin vehicles from 1996 to 2023.With Software V8.5.33.53,supports WIn10, for Vauxhall Opel/Buick and Chevrolet.

www.chinacardiags.com

 

[Doubeleive]

Sorry, I forgot the link.

2023 WIFI GM MDI 2 Interface with GDS2 Tech 2 Win HDD Software

Wifi GM MDI 2 Multiple Diagnostic Interface,supports all Vauxhall /Opel 16 pin vehicles from 1996 to 2023.With Software V8.5.33.53,supports WIn10, for Vauxhall Opel/Buick and Chevrolet.

www.chinacardiags.com

I haven't messed with one of those ones before I have one without the hard drive, not even sure how that would work I assume it must run off the usb port to the computer somehow and would have to have a wall power supply, 5v isn't enough to run that alone.

 

[Doubeleive]

maybe see if there are any youtube videos on it or how it works

 

[George B]

maybe see if there are any youtube videos on it or how it works

I couldn't find much on that excwrp one video of them installing the drive into a physical laptop.

 

[Doubeleive]

I couldn't find much on that excwrp one video of them installing the drive into a physical laptop.

after reading that again it looks like the hard drive needs to go in a laptop, usually they recommend using a older lenovo, the mdi is just the interface.

 

[George B]

after reading that again it looks like the hard drive needs to go in a laptop, usually they recommend using a older lenovo, the mdi is just the interface.

I guess I will just get another tech2

 

[TrybalRage]

I can't seem to program any modules. Got the acdelco folks to give me access to the old SPS system, everything seems to work until I actually try to program something. It will start, get to varying levels of completeness (maybe 25% tops) and then the truck sort of 'reboots', doors unlock and I get an error.

E4491 - Programming Error! Check all connections and reset Programming Interface!
E4423 - Unknown reprogramming error 1 at step 0

First tried with my new memory seat module. Failed. Tried to do a simple radio update. Failed. Tried again on the seat using the 'replace' option and now the seat won't move at all, lol. Either the module is dead due to lack of programming or bricked. Now I'm afraid to try any others.

 

[Geotrash]

I can't seem to program any modules. Got the acdelco folks to give me access to the old SPS system, everything seems to work until I actually try to program something. It will start, get to varying levels of completeness (maybe 25% tops) and then the truck sort of 'reboots', doors unlock and I get an error.

E4491 - Programming Error! Check all connections and reset Programming Interface!
E4423 - Unknown reprogramming error 1 at step 0

First tried with my new memory seat module. Failed. Tried to do a simple radio update. Failed. Tried again on the seat using the 'replace' option and now the seat won't move at all, lol. Either the module is dead due to lack of programming or bricked. Now I'm afraid to try any others.

I found that for programming it's critical to use the AC power supply for the Tech2. I ran a 50' extension cord from my garage out to the truck. The same exact thing was happening to me and that solved it.

 

[TrybalRage]

I found that for programming it's critical to use the AC power supply for the Tech2. I ran a 50' extension cord from my garage out to the truck. The same exact thing was happening to me and that solved it.

Unfortunately that doesn't seem to help. I tried AC power to both the cable @ the CANDI and also directly to the Tech2.

Today it won't even get past 0% when attempting to program. At least last night it was *trying*.

 

[George B]

I have this info:

https://testing-public.carmd.com/Tsb/Download/133428/5457087

 

[TrybalRage]

I have this info:

https://testing-public.carmd.com/Tsb/Download/133428/5457087

Yeah I have found similar stuff from searching for those error codes. "Contact support" is always my least favorite response, haha.

 

[Doubeleive]

Yeah I have found similar stuff from searching for those error codes. "Contact support" is always my least favorite response, haha.

try cleaning the battery terminals and have a charger on it while programming in addition to the 12v dc wall supply to the tech2, the tech2 does not supply voltage to the vehicle at all.

 

[Fless]

FWIW - Not sure if it's been mentioned but programming generally fails if there is any aftermarket part (radio, remote starter, etc.) that hasn't been disabled first.

 

[TrybalRage]

try cleaning the battery terminals and have a charger on it while programming in addition to the 12v dc wall supply to the tech2, the tech2 does not supply voltage to the vehicle at all.

Terminals are clean, new battery, new negative cable, fully charged overnight and tried with the charger both on and off.

FWIW - Not sure if it's been mentioned but programming generally fails if there is any aftermarket part (radio, remote starter, etc.) that hasn't been disabled first.

No aftermarket parts on this truck that I'm aware of.

I called the acdelco support to try and get some assistance, he ran me through a few things to check. He theorized that perhaps there was a problem with the seat module itself. So after we got off the phone, I figured I'd try and update something else instead. Tried to program my lift gate module with the latest programming.

So anyway my lift gate won't open now, cause that programming failed too about 25% though. HA!

 

[Doubeleive]

Terminals are clean, new battery, new negative cable, fully charged overnight and tried with the charger both on and off.


No aftermarket parts on this truck that I'm aware of.

I called the acdelco support to try and get some assistance, he ran me through a few things to check. He theorized that perhaps there was a problem with the seat module itself. So after we got off the phone, I figured I'd try and update something else instead. Tried to program my lift gate module with the latest programming.

So anyway my lift gate won't open now, cause that programming failed too about 25% though. HA!

have you ohm tested the lan bus? there are couple pins on the obd port than can be tested for proper ohm's, if it's not that then I would suggest taking it to the dealer and have them try with there tech2 and see if they get different results if they have success then it might be a defective tech2

 

[TrybalRage]

have you ohm tested the lan bus? there are couple pins on the obd port than can be tested for proper ohm's, if it's not that then I would suggest taking it to the dealer and have them try with there tech2 and see if they get different results if they have success then it might be a defective tech2

Yes, I'm getting ~60 ohms on the bus. I do wonder if it's due to some other CANBUS issue because as I've mentioned in my other threads I've just had a host of problems with this thing.

 

[Doubeleive]

Yes, I'm getting ~60 ohms on the bus. I do wonder if it's due to some other CANBUS issue because as I've mentioned in my other threads I've just had a host of problems with this thing.

any permanent codes? if so that's sometimes a indicator of a shorted module or short to ground

 

[TrybalRage]

No, but every time the system 'reboots' during the programming process (dash goes black, doors unlock, headlights come back on) it throws a U0140 communication error when I scan again. Unfortunately the causes seem kind of vague when I google it, including "caused by an error while programming modules" which makes sense.

So it's a chicken or egg question. Is the communication error causing the programming issue, or is the failed programming causing the communication error.

With the tech2 I can ping all modules (well, not the seat or the liftgate anymore) but I can see live data, command different actions, etc.

I *thought* I had a shorted module which led me to replace the memory seat module in the first place - my other thread I talk about that. It was working after replacement, but I was trying to update the program just to be sure there were no issues cause it came off a different year vehicle.

So far, as far as SPS programming goes, I've tried
1. The seat module (failed, no longer works)
2. The radio (failed, but still seems to work ok)
3. The lift gate module (failed, no longer works)