Additional Tech 2 & VXDIAG Nano Resources

azswiss

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May 23, 2021
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Thanks MRRSM. Enjoyed watching this guy beat the scammers at their own game.

In either case, standalone box or VM/VPN, the operating (healthy) assumption to make is that you are vulnerable; fore warned is fore armed!

The threat that Lowbuck LS flagged in the video above (win32/tiggre!fn) is frequently found in PC game cracks so I would suspect that it is probably a component of the Tech2Win/GDS2 hack. Regardless, the point is moot.

Only the paranoid survive!
 
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mrrsm

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If you are using your Tech 2 to attempt to Diagnose any of these UXXXX Codes on Full Size GM & GMC 2007-2012 Trucks & SUVs for any of THESE Issues:

"Loss of High Speed GMLAN Communications, Intermittent No Crank, IP Gauge Fluctuation, Intermittent Door Lock Cycling, Intermittent Chime Operation, Various IP Warning Lamps Illuminated, Transmission May Not Shift, Communication DTCs
U0073,U0100, U0101, U0102, U0109, U0121 or U0140 Set (Repair Terminals in Transmission Harness Connector, Repair Open or Shorted GM High Speed LAN Circuits, Open or Shorted Data Link Resistor, Corrosion or Poor Connections in Various Control Module Connectors)"

THIS TSB Service Bulletin covers all of the possibilities and includes all of the complex repair actions required in response:

 

mrrsm

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All of the Diagnostics being performed in these Videos were done by a Professional Mechanic using a Tech 2 along with his considerable Diagnostic Experience:

Let's look over the shoulder of "Keith, from New Level Auto" ...

Using a Tech 2 to Verify a GM EVAP System Repair:


...and again for Diagnosing a P0449 Code...probably on the very same truck by using his "KISS" Principle steps to follow:


Here Keith is showing us How to Diagnose the P0172 and P0175 Codes on a 2008 Suburban:

@Mooseman ...

Check out the comments made as "Fair Warnings!"
regarding the Dangers of leaving the Tech 2 hooked up to a vehicle suffering with a Failing Battery posted below this Linked Video. Keith's in-video explanation about an issue that you have raised to our attention on many occasions is very enlightening:

"Bro, just FYI, I have been told more than once that you can ruin a genuine Tech2 if it is plugged in while you crank a car with a crap battery. Ask Jaime L who repairs them down in FL. Hate to see you ruin yours..."

New Level Auto Replied...

"Yessir , I've heard the same . I appreciate you looking out. Generally I will be sure to keep battery maintainer on during a diag. This one was so fast I got lazy..."



...and for the last entry for today in this Post... Keith examines a GMC Yukon Hybrid showing a "No Start" condition after it has a Minor Fender Bender:

 
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mrrsm

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P0420 Diagnostics (Failed Catalytic Converter) using the Graphing Portion of the Tech 2 with insights from @MAY03LT on "Dealership Diagnostic Shenanigans" :

 

mrrsm

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We're all familiar with The Old Saw...

"One BAD Apple can Spoil the WHOLE Bunch..."

This is especially True where the Class 2 Network Star Architecture vs. ALL Modules is concerned. But for anyone with a Need to Know.,.. HOW and WHY this presents for serious and often confusing failed modules in many situations; not just for the GMT360s... but for any and all other Single Wire Class 2 Networked Vehicles as well, THIS Video offers a Classroom Quality Instructional on the Facts behind this weakness in the OBD2 Class 2 Technology:


If you've been visiting the myriad YT Videos linked to this Thread AND Downloading & Saving them into your "Mechanic's Multi-Media Reference Library", THIS one would be best placed as the One-2-Watch First and then as often as needed thereafter to improve understanding.

One last thing worth mentioning as an Important Diagnostic Compliment to having your own "GYMKO" Tech 2 Scanner System...

Take note that VISUALIZING all of the Class 2 Network Behaviors of Modules as "Voltage Over Time" can only be done using an Oscilloscope; either as a Standalone, Hand-Held Unit like the Hantek Model# 2D82A... or by using the Hantek Model #1008C or the PICO-Scope Model# 2204A Units with either Windows or Linux OS for Tablets or Laptop Computers. All of these are readily available for purchase over on Amazon.
 
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mrrsm

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Even though this is just one of the many Step-By-Step Procedures covered in the TECH2PATHS Document listed in my “GYMKO” Bench Top Test Harness Thread, having recently viewed THIS IPC Repair Video and observed the VOP (Video Original Poster) performing an IPC “Sweep Test” numerous times on his Bosch Vetronix Tech 2… I thought I’d post the specific Keypad Steps needed to get to it and make it work for our Tech 2 Owners:

TECH2IPCSWEEPTEST.jpg


How to Perform an Instrument Panel Cluster Sweep Test with a “GYMKO” Tech 2:

(1) Follow all correct Tech 2 Set Up Procedures, including ensuring that the Battery B+ Power is well above 12 Volts DC prior to performing this Test inside of the Vehicle.

(2) Connect the Tech 2 to the DLC and insert the Power Cord into the DLC Cable Port… NOT by using the Cigarette Lighter Feature and use the remote B+ and Ground cables attached directly to the Battery Terminals for the Tech 2 instead.

(3) Power Up the Tech 2 from the Keypad Button, Then Navigate to the Sweep Features by following THIS Touch Pattern:

BODY→INSTRUMENT PANEL CLUSTER → SPECIAL FUNCTIONS → IPC GAUGES →DISPLAY(S) TESTS

These Actions should reveal any of the Dash Panel IPC Gauges that are either Sticking, are Stuck, or Completely Inoperative.

Please observe the Actions of the VOP as he Presses the Buttons of the Tech 2 Keypad during the latter portion of the above shown Video.


NOTE:

For any Owners of 2003-2005 Full Size Trucks and SUVs, the attached PDF covers a Warranty Extension that has probably expired since THIS Document was published back in 2009 and later based upon the 06-10-2014 identification of this Document.

However in this instance, it serves to show us this very same procedure being instructed for dealership staff to follow and use just prior to the IPC being updated using the GM ACDelco TIS2WEB Features of the Tech 2 for re-calibration updating:

https://ww2-secure.justanswer.com/uploads/MO/molurch/2014-06-30_213012_ip.pdf

Please note that I’ve penned an extensive Thread on the subject of creating various Bench-Top Test Harnesses for use with the “GYMKO” Tech 2 that can be followed for creating your own since these are NOT readily available. Focus on the Information provided in Post #42 for All of the Dope on The IPC Harness:

https://gmtnation.com/forums/threads/how-to-make-a-gymko-tech-2-bench-top-test-harness.18272/page-2
 

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mrrsm

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This is just one of the Whole "Staten Island" Series that were recorded by "Crazy Ivan" from PHAD (Pine Hollow Auto Diagnostics) during his Epic Visit with Keith De Fazio and Crew at "New Line Auto" up in Staten Island, New York.

At around the First Minute and again around 19:30 into this Video, in addition to their wide ranging and very revealing "Tip Laden" discussions about testing out various pieces of New Oscilloscope Diagnostic Gear, Keith shows Ivan and his Baby Brother how to Use the Tech 2 to Re-Do some of the BCM settings on a Grand AM that got the ABS to BCM Module FUBAR'ed after the Owner tried to Program the Keys and showing the advantages of the Tech2 over most OTHER High End Scanners that might NOT have this ability.

As you watch this Video... Notice how much collaboration is taking place among these Men and observe the absolute Open Minded Sharing of their Knowledge and Ideas takes place as they PRACTICE AND FAMILIARIZE themselves with New Tools and Equipment.

TOO MANY AUTO REPAIR PEOPLE try to hide, conceal and obfuscate such Knowledge from the Average DIY Mechanics lurking around the Internet desperate to Learn How to Fix THEIR Cars and those of Family and Friends as well.


This is an object lesson for us all to realize that as more and more Private Corporations are Buying Up and Privatizing for Sale Auto Repair OEM Information that SHOULD be readily available to the Owners of ALL vehicles... Guys like Ivan and Keith are here to help us all learn and shorten the time it take for us to Get Our Vehicles Up and Running Again

 
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mrrsm

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Even though the "J-Box" being used here is an Autel Unit-To Laptop-Via-USB Cable-To-DLC as the PASS-THRU Device, since the access and updates are happening using an Active ACDelco TIS2WEB Account, it serves as a very nice "How To Walk Through Using The ACDelco TIS2WEB Features" for anyone wanting to try out updating their PCM-ECM-TCM Calibrations, but are justifiably, "...afraid of The Funnies..." that CAN sometimes Jump Up and Brick a PCM if one is NOT being careful enough.

Pay CLOSE Attention to how the Mobile Tech here attends to the issues of having Proper, STABLE Battery Voltage present here. Irrespective of the Make-Brand-Model-Type GM or GMC Vehicle being Updated OR of the Make-Brand-Model-Type of Scanner or J-Box you happen to be using, THIS STEP OF ENSURING STABLE POWER THROUGHOUT THE ENTIRE PROCESS FROM START TO FINISH IS THE KEY TO SUCCESSFUL RE-CALIBRATION!

 

mrrsm

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THIS is an EXCELLENT ACDelco PowerPoint PDF with Live Links to Free User Guides and other resources as useful information always handy to have on the shelf of your "Mechanic's Tech 2 References Library". So Grab whatever PDF you can Download and Save from within each "Bullet" ...while The Getting... is Still GOOD:


ACDELCOUSERGUIDES.jpg
 

mrrsm

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If you are using the VXDIAG NANO and have the need to "Un-Lock The Radio" on certain GM Vehicles that fail to show up in the "Latest" BIN File Version 33.004 for the NAO Flavors then you'll need to ROLL BACK to the Older NAO BIN Version 30.004.

Well... Not To Worry...but don't delay in visiting THIS Link to Download THAT BIN File from their BIN Cloud Server before that opportunity passes you by:


The Links to that File AND the complex instructions for the Radio Unlock Procedures are all there along with GREAT SCREEN CAPTURE PRINTS , too. So... Good Luck!

NOTE:

I was unable to grab that File as an Attachments to this Post because it was JUST TOO BIG ...So perhaps the Admins-Mods can do so and drop it onto our GMTN Server?
 

mrrsm

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From now on... I'm going to refer to the Use of either the "GYMKO" Tech 2 Scan Tool in conjunction with ANY Oscilloscope as being a "Hybrid Diagnostic Approach".

Now as much as we all love and admire our Tech 2 Hardware and all the things that it can do for us... Occasionally, it will NOT get the Job Done and ONLY using an Inexpensive Oscilloscope will be able to do the Job.

Follow along with Eric "O" from South Main Auto (SMA) as he delves into Diagnosing a GM 2.4L Ecotec Motor suffering with a P0017 (and P0016) Code due to having Stretched and Damaged Timing Chain Components. He explains WHY using this "Hybrid Diagnostic Approach" is the ONLY way to definitively get to the bottom of what is really going on:

 

mrrsm

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Here is a Handful more of some unusual Tech 2 Training Videos that may have a special appeal for our Overseas GMT Nation Members and Friends.... Join Us!

You never know when you might encounter the need for using the Tech 2 on GM and SAAB Products meant for driving on the European Continent and designated as "NON-NAO" Software Versions that differ from the usual GM 33.004 PCMCIA Card Software. Those PCMCIA Cards can be obtained from various China Vendors from several On-Line Outlets.

These Videos will also appeal to anyone just wanting to know a little bit more about what's possible to perform with their own "GYMKO" Tech 2 Clones in other Nations around the World.

It is always refreshing to see More and More Videos being posted concerning the use of 'The Venerable, Old Tech 2', regardless of the reasons they are being posted on YouTube.


Hopefully, we can continue to warehouse them all here at GMT Nation long enough for our Members to be encouraged to Download and Saving ALL of them into their "Mechanic's Multi-Media Libraries" while these opportunities prevail:

Basic SPS Programming:

Beginner’s Guide to Using the Tech 2:

How to Use the Tech 2 to Program SAAB Keys:

How to Use the Tech 2 to Program SAAB Headlights:

How to Use a Tech 2 to Program a NEW SAAB ECU:
 

mrrsm

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From @TJBaker57

Text Excerpt from his YouTube Post:

GM SI appears to declare the unless the BCM issues a wake up message that other modules in the vehicle may not communicate.

This video demonstrates that other modules do indeed communicate without a BCM present on the network. For sure, the engine cannot be started or otherwise operated but you can troubleshoot other modules on the network even without a functional BCM. First seen is a Tech 2 displaying engine data, Transmission data, ATC data, and EBCM data.

Next the Torque app connects and displays various engine data. Finally, in Torque I command the fuel pump and then the front axle disconnect to briefly operate which you will hear. All of this happens through J1850 communication with various modules where no BCM is present on the vehicle network.”


 

mrrsm

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Frequently... We ALL plug our Scan Tools into the DLC Ports under the Driver's Side under-dash... without ever Checking it for Powers and Grounds or even imagining that anything down there there could possibly be amiss.

But with the DLC being "The Source of the GM PCM-ECM Communications Nile", knowing How to Test Out this 16 Pin Connector FIRST ...is kind of a Real Good Idea.

And as sure as there are Carts to Horses... You might need to discover if there are any certain problems there much sooner than later.

This Video can be helpful to the New Folks (New Members at GMT nation) AND our Experienced Ones as well to appreciate this intimate view showing How This Thing Works, How to Probe IT and How to Interpret such Readings:

 

mrrsm

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Although this interesting YouTuber seamlessly goes through:

" All of the Hoops and Barrel Rolls...
Just to Achieve His Difficult Goals..."


... these complex Step-By-Steps he Video Documented for setting up a VXDIAG Nano in a Windows 10 64 Bit VMWare Virtual Environment are well worth being Downloaded, Saved and 'Kept at an Elbow's Length' by anyone interested in (...or struggling with) this Subject and curious about how all of these nuanced procedures leading to his success get done:

First... Visit and Save THESE Written Instructions the VOP prepared for use after watching this 'Clever Dude's' Video:


Then... Watch him as a "Master at Work" after setting up your Viewing Speed at around 1/4 to 1/2 level because each of the Install Screens changes very rapidly:

 

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