Additional Tech2 Resources

MRRSM

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EDIT:
On November 11th, 2019, :I created a TOC (Table of Contents) of the Video Files shown consecutively in the following Threads that should help to speed the identification of Specific On Topic Videos vs. having to Read and Watch each one in sequence to locate what the Viewers need.

The PDF is called TOCOFADDTIONALRESOURCES.pdf and I'll update this Document on a regular basis over time. Please advise on any Errors of problems with the information contained therein.

A Very Important Thread UPDATE on Wednesday, July 10th, 2019:

The Very FIRST thing to do when Reading This Thread... is to:

Visit Post #15 where @GENMOTMAN has added in the TECH2 Paths.pdf

THIS DOCUMENT SHOULD BECOME YOUR TECH 2 DIAGNOSTIC BIBLE...

So Download it... Email it to yourself. Keep several Copies of this Incredibly Necessary Diagnostic "FLOW CHART" and maintain it on a Thumb Drive within your "GYMKO" Tech 2 Kit. You will NOT Regret it!

What makes this information so very valuable is that it covers a myriad number of Required Step-By-Steps necessary to Follow when using your "GYMKO" Tech 2 Hand Held Scanner and Diagnosing a Broad Range of Problem Categories encountered with most GM Motor Vehicles and Trucks.


If you have obtained a New “GYMKO” Tech2 Clone Scanner and want to get your feet wet with its various functions... or even for Experienced Users… Here are some Additional TIS2000 “How-Tos” and Instructional Videos that will assist with cutting to the chase scenes when using either your OEM or “GYMKO” Tech2 Scanners or in combination with the Laptop Computers for Specific Tasks:

How to install TIS2000 Software on ANY Computer with ANY Operating System (Windows, MAC, Linux):


The BOSCH Tech 2 OEM "How to Use the Tech 2 Diagnostic Scanner" PDF:


NOTE: THE 2017 SOFTWARE UPDATE INFORMATION BELOW... IS ONLY FOR THE VERY EXPERIENCED TECH2 USERS!:

How to Install TIS2000 and GLOBALTIS Software on a Windows Laptop Computer:
http://blog.obdii365.com/2017/12/12/install-tis2000-globaltis-for-gm-tech2/

How to Install the GM Tech2 TIS2000 Software on Any Computer:
http://blog.worldobd2.com/how-to-install-gm-tech2-tis2000-on-any-computer/

How to Use the GM Tech2 Scanner (I recommend Downloading this Training Video):

How to Perform a CASE Re-Learn on a GMC Vehicle (Video for Download)

How to Clear ABS Codes using the GM Tech2 Scanner: (Video for Download)

How to Use the GM Tech2 for Diagnostics: (Video for Download)

Original GM 1995 Tech2 Training Video: (Video for Download)

GM MDI Global TIS/Tech2/GDS Operate Steps: (Video for Download)
https://www.youtube.com/watch?v=WodlZAUpzg0

How to Use the GM Tech2 with the TIS2000 Software to Program the PCM:
http://blog.obdii365.com/2014/12/03/how-to-use-gm-tech2-with-tis2000-to-do-pcm-programming/

How to Program a Single Module Using either the “Pass-Thru” or the “Go-Between” Method:
http://blog.obdii365.com/2018/03/13/gm-tech2-pass-through-or-go-between-method/

How to Unlock the Radio in a Trailblazer using the GM Tech2:
http://blog.obdii365.com/2015/11/30/unlock-chevy-trailblazer-radio-using-gm-tech2-scanner/

How to Bleed ABS Brake System using the GM Tech2 Scanner:
http://blog.obdii365.com/2014/12/17/how-to-use-gm-tech2-to-bleed-abs-brake-systems/

How to Replace the DC-2-DC Power Converter in GM Tech2 Scanners that will NOT Boot Up: (Images Included)
http://blog.obdii365.com/2017/05/25/replace-gm-tech2-dc-to-dc-converter/

How to Install and Use the CANDI Interface on a GM Tech2 Scanner: (Images Included)
http://blog.obdii365.com/2015/10/06/tech2-candi-interface-manual/

PDF with Images explaining Testing the Tech2 Clone:
http://www.chinacardiags.com/upload/pro/gm-tech2-self-testing.pdf

PDF with Images explaining the Performing the Keyboard Test on the Tech2 Clone:
http://www.chinacardiags.com/upload/pro/gm-button-self-test.pdf

PDF with Images explaining Upload/CANDi Procedures of the Tech2:
http://www.chinacardiags.com/upload/pro/candi-test-operation.pdf

PDF with Images of RS-232 Loop Back Test of the Tech2 Clone:
http://www.chinacardiags.com/upload/pro/rs-232-operation.pdf

Caution-> This is the Latest 2017 PCMCIA Tech2Win FREE Software Download<- Caution:

READ EVERYTHING HERE… BEFORE DOING ANYTHING… This software described at the very top section of this Link is UNTESTED and requires following the other links and Instructions to avoid encountering any Security Issues. I would suggest that you obtain an Extra PCMCIA Inexpensive Card available from aliexpress.com Vendors that is pre-programmed with the 33.004 Version of the Software ...and overwrite IT using your TIS2000 Laptop and GM Tech2 Clone with this New Software Version for Testing Purposes ...rather than risk your existing Original PCMCIA Card with the overwrite.

http://blog.obdii365.com/2017/08/13/2017-tech2win-pcmcia-v182-download-free/
 

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It might prove very useful for many New (and Experienced) “GYMKO” Tech 2 Owners and Operators to have a Ready Source of Tech2 Instructional Videos on how to actually perform certain functions with this Hardware and TIS2000 Laptop Software. And so, I’ll try to populate this Thread with Simple Titles and links to the YouTube Videos that cover these subjects in detail.

I am suggesting that these Videos make more sense if Downloaded and Saved to your Tech2 Multi-Media Folder so that later on… you can safely practice with your New Tech2 and learn and study at your own pace to improve your confidence with the “GYMKO” Tech 2 before you get into any serious PCM Updating and/or New Module Installations. Remember to use the LATEST TIS2000 GM PCMCIA CARD Ver. 33.004 whenever performing any SPS Service Updates:

Note... (With the approval from the Admins and Mods...) Please Do Not Post Any Comments or Anecdotal Responses after viewing the Videos in this Thread. Any Contributions of similar Instructional Videos should be Posted only if they are as Complete and as Accurate as possible with their presentation of Unique Instructions, as many people will be relying upon the Accuracy and Reliability of the Multi-Media Information Posted herein:

GM SPS Programming: Tech2 Tool Remote Mode ECU TIS2000 Calibration Update:

GM SPS Programming: Tech2 Tool Pass Thru Mode ECU TIS2Web TDS Calibration Update:

GM Tech 2 Scan Tool DC-DC Converter Replacement / No Power On Repair (Dead Unit)

GM How to Program Key Fob(s) with the Tech 2:

GM Tech 2 Training video 1996:

More to Follow...
 
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In some cases... the Vehicles involved will NOT be GMT360 SUVs and Trucks... but the concepts and procedures will stand out as being the most important aspects in these Videos:

Testing GM HVAC with the GM Tech2

Reading and Clearing DTC's from ABS using a GM Tech2 GMC Canyon:

How To Perform a Crankshaft Position Variation Learn - Chevy/GMC Colorado/Canyon

1990's GM Tech2 Hardware Demo Video:

GM-SAAB Tech 2 Diagnostic Tool Overview:
 
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This is a Very Interesting Find concerning the GM OEM Tech 2 Information updated in 2019 that describes the entire Layout and Performance Parameters of the Original GM Tech 2 Handheld Scanners. The data is reduce-able to a Linked PDF...but I was unable to figure out how to Download the Damned Thing. The importance here of course, is being able to see first hand what the OEM Units were designed to do ...and as such, it offers us a Mode of Comparison between the OEM GM Tech 2s...and the "GYMKO" Clone flavors of this Device.

There is also some information nested in the Documentation that covers the Licensing of the GM Software and the fact that when the System Software becomes out-dated...that the Tech 2s will still continue to function... (wouldn't THAT be a Kick in the Teeth if the Tech 2 Clones just stopped working one day because they hit a programmed Time String that triggered a System Failure to occur?) Anyway... FWIW...this data is ordinarily meant strictly for the Original Market for the GM Tech 2s and will make for an interesting Read:

 
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Mooseman

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Instead of starting a new thread, I'll just leave this here:

 
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MRRSM

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.... Which translates to mean that my latest Thread on having a Strictly Multi-Media has turned out to be a Bad Idea...


The reason I created the OTHER Thread was to Aggregate the Multi-Media portion of the Tech-2 Training Videos for the ease of people who prefer strictly Visual ...rather than Text Learning. This seemed to make perfect sense to me... but apparent that is not the case. So... @Mooseman ... if you deem it necessary to combine these all under the same Thread... I have no problem with that:
 

Mooseman

Moderator
Merged the posts and stickied it too.
 
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“SAAB Story” #1 How to Program an Newly Installed CIM Module in a SAAB 9.3

“SAAB Story” #2 … The Generic Use of the Tool for SAAB ONLY

“SAAB Story” #3 … More Generic Use of the Tool for SAAB ONLY

How NOT to make a Tech2 Instructional Video (But with an Honorable Mention of GMTN):

Usng a Tech 2 to Diagnose a Failed Rear Wiper Switch and Interior Light…

@MAY03LT & "Miss Barbara" Playing with his New Tech 2 Toy Features:
 
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This is a VERY Unusual application of using the "GYMKO" Tech 2 Clone on a 2005 Work-Horse Chassis RV sporting the GM Vortec 8.1L Engine and fitted with the Allison Transmission... when other Scanners would NOT show Hidden Trouble Codes or read information on the Transmission. The VOP (Video Original Poster) sounds like he could NOT be any Happier ...if he was TWINS!:



2005WORKHORSE.jpg

In these two Videos... The VOP (Video Original Poster) covers HVAC Testing of his 2005 Cadillac Escalade. Note that the value here is in being able to observe more 'Hands-On' usage that will assist New Tech 2 Owners by watching how this tool gets used under real diagnostic events:



This is DrShock performing an Automated ABS Brake Pressure Bleed using an After-Market Pneumatic Brake Fluid Hand Pump connected to a Master Cylinder Reservoir Cap along with his "GYMKO" Tech 2 Scanner to Activate the ABS Motor Gear and "Exercise" the ABS System to purge any Air Bubbles out of the System:


How to Perform a Cylinder Power Balance Test (EFI Test per Cylinder)

 
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A Basic Un-Boxing Over-View of a “GYMKO” Tech 2 with Boot Up and Loop Back Test:


...and from the same VOP (Video Original Poster) ...How to Perform the "GYMKO" Tech 2 CANdi Self-Test:


This one shows what happens when the VCI Loop Back Test that FAILS:


THIS Video is Very Interesting as a User maneuvers through solving Serial Communications between the Tech 2 and his Laptop TIS2000 interactions:


This Video comes from the same VOP above and is a perfect example of why "The Squeaky Wheel ... Gets the Grease...". In it, he complains about God-Damned nearly EVERYTHING about this Inexpensive Clone. But.. he also provides some other good insights about what may need to be taken apart and "tidied up".

He also makes mention of the problem @Mooseman has addressed many times about the Tech2 losing power and shutting down under certain conditions. In any case... its value lies in getting yet another opportunity to "look over the shoulder of a Tech 2 User" and add his experiences to your own:


For anyone struggling with running TIS2000 Legacy Software or TIS2WEB on Computers that Do NOT have Native Nine Pin Serial Ports and also being troubled with problematic USB to Serial Port Adapters... This video and the Comments and Links provided by the VOP on his Youtube Channel could be the solution:

 
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For anyone driving the Saab 9-5 and suffering from single wire-resistor based Horn/Steering Wheel/Airbag/Clock Spring Replacement and Repair issues, this intrepid Scandinavian Youtuber, - Trionic Seven - Uses a Tech 2 to work things out over this close to one half hour long Video:


Spending only 5 Minutes in direct conversation with this “Whiner” would make you want to go Hang Yourself in the Garage… as he describes his Tech 2 Clone Purchase while lacing the dialogue with endless complaints about EVERYTHING… and yet, almost within the same breath… he adds in praises for most of the aspects of his Chinese Clone Purchase. In the end he basically says, "My POS Tech 2.... is REALLY NOT a POS...":


Here is a Saab Owner visiting a Friend who owns a Tech 2 to try it out on his vehicle and then explaining all the Hardware and its utility:



Here is a fraction this this Guy's Classroom Tech 2 Study of the Saab Security Issues using a Virtual Windows-GlobalTIS Application. This one may be a bit complimentary to @southsidesmoka ‘s “How to Set up Windows 7,8,8.1,10 Versions with TIS2000” Thread:

 
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In answering a freshly related Tech2 Question covering "How to Use the Tech2 to Diagnose 4WD Trouble Codes"... This Video was available and the VOP (Video Original Poster) provides EXCELLENT Video of the Tech 2 Scanner Screen as he presses the appropriate Function Buttons to navigate over to TCCM and other Transfer Case Encoder CXXX Trouble Codes. So... if you have your own Tech2 and want to poke around and sort out these GM Truck 4WD Issues... THIS is the Video for YOU!


(NO SOUND) Re-Flashing the PCM of a Chevrolet Silverado… observing SPS Laptop PASSTHRU using a "GYMKO" Tech 2 Scanner to OBD2 Port:


This next Video might interest @littleblazer as it covers a problem with a GMC Duramax 6.6L Diesel going into "Limp Mode" and how the VOP uses his Bosch Vetronix Tech 2 following some complex and seldom seen Test Procedures during these Diagnostics:


...that leads over to a Better Hands On Repair repair of this problem, courtesy Eric "Oh" over at South Main Auto. He investigates another related and similar Duramax Problem and manages to give us a closer at the repair while using a different High End Scanner to Perform the Job. Again... this is just one more set of Videos that can Edify Tech 2 Users about some of the other uncommonly accessed features:


...and WOW! Look at what GM Sent to Eric AFTER watching his Last Video... apparently... they DO Pay attention to what the World Thinks about the problems with some of their Vehicles after watching his South Main Auto Channel and responding to his dilemma... This is Interesting as HELL!

 
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How to Use the GM "GYMKO" Tech 2 Scanner to Disable DRL (Daytime Running Lights)

This Linked procedure (with Excellent Tech 2 "Step By Step" Screen Print Imagery is quite straightforward... However, as with all cases of using your Tech 2 Scanner... Certain critical precautions should be followed to Prevent "Bricking" the PCM or other Modules in the process:

(1) This particular activity ACCESSES AND ALTERS THE BCM MODULE FEATURES... so it is very important to ensure that your SUV-TRUCK Battery is Fully Charged.

(2) The 12 VDC POWER SOURCE MUST come from plugging in the Power Connector into the DLC-to-OBD2 Adapter on the Tech 2 DLC System Cable and NOT into the Base of the Tech 2 Scanner.

(3) Have a Completely Decoded and Accurate RPO Listing for your particular Vehicle Printed Out and Handy for when the BCM Access Screen shows the RPO Options that can either be turned On and Off. Select ONLY the one that either Disables or Enables the DRL Feature.

(4) Follow each Step and Do NOT Turn Off The Ignition Key or Power Down the Tech 2 until ALL procedures and steps have been completed.


 

GENMOTMAN

Active Member
This pdf doc contains the TECH2 Paths required for multiple actions on the GM Tech2 for diagnosing and programming. It covers lots of territory..
 

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How to Cycle The ABS Module using a "GYMKO" Tech 2 Scan Tool during Complete Brake Bleeding Procedures.

Remember to BLEED THE BRAKES BEFORE USING THE TECH2 ...AND AFTER.


Please take note of HOW LOUD The Sound of the ABS Module becomes during the repeated fluid cycling actions taking place during this Automated Procedure:

 
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How to Use the TECH 2 to Re-Program an Updated Transfer Case Motor Module

DTC C0327 TRANSFER CASE ISSUE


From around 9:55 into this Excellent “How R&R & Update via the TSB the TCCM Transfer Case Module Internal Component” Repair Video from RealFixesRealFast, Duane employs a Mobile Re-Flash Service Technician who came to his Auto Repair Shop and used his Tech 2 and Laptop with SPS Programming via the PASS-THRU Communications to re-program the Repaired Transfer Case Updated Module. Just follow along with his explanation and procedures.

I note that @Mooseman could become "The Man In Canada" for such Tech 2 Go To Repairs if he was looking for the chance to travel and still keep his hand in 'The Game' after his Retirement... :>)

 
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Dr. Shock shows us How to Identify The General Motors Vehicle Product Lines and this first Link allows us to Access, Download and Save this useful additional reference material:




http://iconnect-corp.com/specs/vendors/generalmotors/corporate/gmcorp_desadv.pdf






The VOP (Video Original Poster) directly refers to the General Motors Systems Programming Service Guide (...which I was UNABLE to locate ...a Link form Dr. Shock would have been helpful here) during his explanation of the relationships this important identifying information has to the use of the “GYMKO” Tech 2 Scan Tool:

Identifying the General Motors Vehicle Product Lines vs. The Use of the GM Tech 2 Hand Held Scanner:

 
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This Video from MAY03LT concerns "Scan Tool Values" when using the "GYMKO" Tech 2 Scanner:

 
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Of ALL The Training Videos covered on this Thread… THIS 30 Minute Diagnostic Session on "How to Run Down Problems with the Class 2 Single Wire Network" is probably one of THE Most Important Instructional Displays for anyone using the “GYMKO” Tech 2 or Autel Scanner… Noting that the Ordinary BLUE Tooth Scanner was unable to perform initial accessibility with a DOWN and very problematic Class 2 Network:


Please... For Any and ALL Members still harboring an interest in getting their OWN "GYMKO" Tech 2 Kit...or the LATEST PASS-THRU Devices... Keep Checking on AliExpress.com for the BEST Price and Availability and S&H ...so you can finally OWN one of these indispensable tools.

If you have not as yet been Downloading and Saving these Tech 2 Training Videos into your "Mechanic's Video Library"... THIS one is a Great Place to START!
 

Mooseman

Moderator
Please... For Any and ALL Members still harboring an interest in getting their OWN "GYMKO" Tech 2 Kit...or the LATEST PASS-THRU Devices... Keep Checking on AliExpress.com for the BEST Price and Availability and S&H ...so you can finally OWN one of these indispensable tools.
I would like to CAUTION anyone contemplating getting a Tech 2 or other cloned trademarked device from ANY seller in China that US CBP have been confiscating and possibly issuing massive fines to those importing any clone or counterfeit products. One member here has his confiscated but so far has not been fined. Find a seller that has stock already in the US.
 
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Regarding Post #20... The Mechanic refers to him NOT bringing along his "Break-Out Box" that essentially isolates all (16) Pins of the DLC (Data Link Connector) to include "collision lights" in conjunction with a GM Tech 2, Autel tablet... and/or a DMM to diagnose similar problems in Late Model GM Trucks and SUVs.

I know this will seem a bit Arcane as a Diagnostic Tool for use by the Average Mechanic… But Understanding and Using a Network DLC OBD2 Break-Out Box in conjunction with various Bi-Directional and Oscilloscope Capable Scanners it is very worthwhile understanding.

So on the Wings of the Last Posted Video… THIS 2007 GM Uplander with the use of a Break-Out Box issue segues nicely into this opportunity of knowing HOW it gets used with the GM Tech 2 and encourages using Probes via a DMM and/or with other OBD2 DIAGNOSTIC TOOLS as needed… SIMULTANEOUSLY.


Amazon carries affordable Break-Out Boxes:

https://www.amazon.com/dp/B07K683HQS/?tag=elightbars-20

Here are some still images of what this thing looks like... realizing that IT would Plug In Between the GM Tech 2 Scanner and the DLC Dash Connector:

OBD2BREAKOUTBOX1.jpgOBD2BREAKOUTBOX3.jpgOBD2BREAKOUTBOX4.jpgOBD2BREAKOUTBOX5.jpgOBD2BREAKOUTBOX0.jpgOBD2BREAKOUTBOX2.jpg

A while back... I covered this Topic with another Video over in this link...But I did NOT have access to the Video featured in Post #20 to assist with tying all of this Diagnostic Gear together:

https://gmtnation.com/forums/threads/how-to-diagnose-a-failed-pcm-in-a-2008-chevrolet-silverado.19956/
 
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This is one of a Series of College Course Level Automotive Training Videos from “DeadOnDiagnostics”:

012 GM Class II Communications (A Basic OBD2 DLC Connector Outline):



Again... Relating back to Post #20...

Here is another video demonstrating some more GM Class 2 Network Diagnosis Tips involving DOWN Vehicle Networks:


In the Video shown above... The VOP above was using THIS COOL uScope Palm Sized Oscilloscope:


I note that ALL of these Specialty Tools and Procedures can be used with the "GYMKO" Tech 2 while performing similar Diagnostics.

In THAT same vein, This VOP finds that the GM Sedan Driver's Side Door-Windows-Mirror Control Switches are DOA and throwing a Class 2 Network Problem as a U1170 Code. The VOP then uses his Tech 2 to run his Diagnostics and winds up having to R&R the "Circuit Board" Switch, condemning it as a "Non-Serviceable Component" in a related, follow up Video:

GM U1170 Driver Door Switch Assembly - Loss of Serial Data:


 
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I thought it was time to create a TOC Document “Table of Contents” for all of these Tech2 Videos. This DOC will be more useful as a PDF now linked up at Post #1. I'll refresh the PDf as more Videos are added in follow on Posts ... Here Goes:

Post #1
How to Use the Diagnostic Scanning Feature on the Tech 2
How to Perform a CASE Re-Learn via the Tech 2
How to Clear ABS Codes via the Tech 2
How to Use the Diagnostic Scanning Feature on the Tech 2 (2nd Video)
GM OEM Tech-Line Tech 2 Training Series

Post #2
How to Program the PCM using the Tech2 Transfer to the Laptop Method
How to Program the PCM using the SPS to Tech 2 PASS_THRU Method
How to Replace the DC-DC Voltage Converter inside of a “GYMKO” Tech 2 Clone
How to Program a GM Key Fob using the Tech 2
GM OEM Tech-Line Training from 1996

Post #3
How to Test the HVAC System using the Tech 2
How to Read and Clear DTCs using the Tech 2
How to Perform a CASE Re-Learn on a Colorado
GM Tech 2 Training from the 1990s
GM-SAAB Diagnostic Overview using the Tech 2

Post #5
How to Program the GM OEM Radio using a Tech 2

Post # 8
GM-SAAB How to install and program a New “CIM”
GM-SAAB Pointless (?) Tech 2 Information of the SAAB
GM-SAAB The Tech 2 is THE Tool EVERY SAAB Owner Needs
How to Diagnose Rear Window Wiper Using the Tech 2
@MAY03LT Playing with his NEW, OEM GM Tech 2

Post #9
How to Use the Tech 2 on the GM Workhorse RV
How to Use the Tech 2 to Troubleshoot the HVAC on an Escalade
How to Test the HVAC System using a Tech 2
How to Power Bleed the ABS and Brake System Using a Tech 2 (Dr. Shock)
@MAY03LT on How to Perform a Cylinder Power Balance Test via the Tech 2\

Post #10
Basic Un-Boxing and Overview of the “GYMKO” Tech 2 Clone Scanner
How to Perform a CANDi Self-Test using the Tech 2
How to Diagnose a Failed VCI Self-Test on the Tech 2
How to Solve Serial Communication issues between the Tech2 and Laptop TIS2000
A “Whiner” complaining endlessly about his Tech 2 with NO Actual Problems

Post #11
How to R&R the SAAB Steering Wheel Steering Wheel Clock-Spring
The same “Whiner” Un-Boxing his New “GYMKO” Tech 2 Clone Scanner
GM-SAAB How to perform a CASE Re-Learn
GM-SAAB Talk with an Enthusiast
GM-SAAB Classroom on “tech 2 for Dummies” European Instructor

Post #12
How to Diagnose 4WD Trouble Codes using the Tech 2
How to Swap a PCM into a Chevrolet Silverado via SPS and the Tech 2
How to Diagnose a Duramax “LIMP HOME MODE” using the Tech 2
How to Diagnose a Duramax P20B9-00 Trouble Code using the Tech 2

Post #16
How to Pedal Bleed the Brakes and ABS using a Tech 2

Post #17
How to Update the TCCM -TCM according to the TSB using a Tech 2

Post #18
How to Identify the Truck and Car Line Series GM Product Lines using a Tech 2

Post #19
@MAY03LT on How to interpret the Scanning Values on the Tech 2

Post # 20
How to Diagnose and Repair Class 2 Network Failures via COMBs, Oscilloscope and Tech 2

Post #22
How to use a (16) Pin Break-Out Box with a Tech 2 and DMM to Troubleshoot Class 2 Problems
 

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If your "GYMKO" Tech 2 Scanner ever Fails to Power Up... Don't immediately assume the Problem is with the Scanner. @MAY03LT delves into the Power Distribution Center and finds a Blown Fuse #13 after using the Correct Pre AND Post Test Procedures. Keep in mind that the "CIGAR" Lighter AND the (16) Pin OBD2 Under-Dash Connector use 12 VDC Power Inputs that BOTH share on the same 20 Amp Fuse #13 Circuit:

(God... I HATE THAT Number!)


How to Use the Tech 2 to Re-Program an ECU (hsfi 2.1)"

For our Members from "The Land Down Under" ...Holden Tech 2 Key Re-Programming:
 
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"How to Use the Tech 2 to Manipulate the Idle of a Duramax Engine":

This the first video of a Two Part Series on “How to Use the “GYMKO” Tech 2 to Program Modules.” Check out “The Swede’s” GM OEM Laptop and Tech 2 Plastic Dealership Tech-Line Desk:

Part 1: of the Swede’s Tech 2 Set Up:

Part 2: of the Swede’s Tech 2 Set Up:
Unavailable…

EDIT: Found it! Good Information on Changing Module Options in the BCM:


"How to Use the Tech 2 Clone to Diagnose a No Start condition on a 2005 Corvette":

"How To Graph Values in an Oscilloscope - like Manner using the Tech 2", along with other features:

 
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For anyone with a "GYMKO" Tech 2 interested in correcting their Speedometer Calibration after Swapping Tires for seasonal reasons or for putting on much larger or smaller than Stock Size Tires, this Short Video should interest you. Please Download, Save and then Play this Video at ½ Speed as the VOP (Video Original Poster) moves through the Function Key Selections rather quickly:


It’s amazing that the European SAAB Vehicles have Tech 2 Features on their PCMCIA System Cards that allow for Re-Programming their Speedometers in Very Fine Grain Detail when seasonally changing their tires.

Unless covered and explained in any other GMTN Thread… it might still be an Open Question as to whether or not Saab 9-7x Owners in North American in possession of “GYMKO” Tech 2 Scanners have these very same Options nested on their Saab PCMCIA Cards.

If so and you would like to know how to make such precise Tire Parameter Changes on your vehicles… THIS "White Board" Swedish Tech 2 Classroom Instructional Video (spoken in English) may interest you:

 

Mooseman

Moderator
The 9-7x is on the regular GM NA card.

I have seen the tire size change setting but AFAIK, it's only for the ABS/traction control, as per the first video. Unless it's different for pure Saabs, the NA vehicles will not get a change to the speedo readout since it's the PCM that feeds the speedo, which is why it can be changed via HPTuners except on the early GMT360 with the 1st gen PCM (hard coded to the VIN). Later ones can be modified.
 

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