How to Bleed ABS on Corvette with GM Tech II

Bleeding ABS on Corvette with GM Tech 2 by following the next procedure.

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 manufacturer’s 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.

GM TECH 2 Diagnostic tool – A quick word before buying on Obd2tool

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The GM Tech 2 diagnostic tool has been around since the 1980’s.  It has been the flagship diagnostic tool and programing device for many many years.  it continues to be a valuable part of the GM dealership stable because its quick, efficient, and works great!  Now that other diagnostic programs that are, for the most part, only economically  viable for GM dealership technicians to use (like Tech2WIN) the cost of Tech 2 has come down a little bit over years past.  It is because the Tech 2 has been around for as long as it has that it is such a copied and cloned unit.  Couple this to the advent of Obd2tool, allowing rip-off artists world wide to sell cloned duplicates, the glut of good people who want to work on their own cars and want a dealership level tool, and technicians who want to upgrade beyond a piece of crap generic scan tool for GM family cars, and what you are left with is a global marketplace where 95% of the stuff being sold here is a clone, or simply someone else’s headache!

All Tech 2’s are not considered equal. Tech 2 gives you unprecedented access to EVERY GM module and controller, provides the best and highest volume of vehicle data, and possesses the most bi-directional functionality of any diagnostic tool for GM family cars. There have been, however, a multitude of manufactures of Tech 2 over the almost 30 years it has been in production.  Very early Vetronix units had solder joint problems which caused random communication failures.  In addition to being an inconvenience, if this occurs during a programing event, you will be left with a garbage controller!  Later models are made by Bosch, who bought Vetronix.  They have cheapened the unit up so much that it is marginally better than a Korean clone.  As a matter of fact, most of the electronics are made in Asia or in Eastern Europe where most of the clones come from. This was done as a cost cutting measure.  The result is a slew of premature failures!  The units that reside in the “middle” time were made and marketed by others like Hewlett Packard and OTC.  These were the most reliable and durable units around.

Tech 2 is not only a diagnostic tool, it is also is capable of programing new and used programmable GM controllers, configuring functionality within modules and updating GM family cars with the most current programing.  You can gain access to programing on GM TIS on WEB website.  With very little effort, and cables that accommodate your type of PC, you can update or install programing in any GM family OBD II or CAN compatible vehicle.  Tech 2 can also be used on SAAB, Holden, Isuzu, even some Toyota vehicles with optional programing available through GM and accessible by anyone for weekly, monthly, or yearly subscription.

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A new Tech 2 unit retails for well over $4000.00.  Anyone who tries to sell you a new unit for less is selling you a clone that DOES NOT work on every GM car, IS NOT of any quality and has a high failure rate.  Clone Tech 2’s frequently destroy vehicle control modules, and are a complete and total waste of money!  A lot of people buy a Chinese or Korean clone, and have no idea they have a clone!  If they sell it to you, they didn’t know it was a Chinese or Korean clone.  This is a highly cloned tool and even the original manufacturer(s) built some low quality units.  Make sure of what your buying BEFORE YOU SPEND YOUR HARD EARNED MONEY ON IT. Clone scan tools are very easy to spot if you know exactly what your looking for!  On Tech 2, there are tell-tale signs of a tool being a clone.  Clone units DO NOT print on the unit that it is a clone.  Clone units DO NOT say “made in china” or “made in Korea” or “made in Poland” on them,  They say “Made in the United States.”  The idea is that THEY ARE CLONES and thus are lying to make you think your getting an authentic unit, when instead, your getting a huge piece of crap that is, literally, worth pennies!  There are hundreds of these clones out here on Obd2tool being sold by people all over the world.  There are private individuals who buy clones, either discover they have a clone and re-sell it as authentic, or have no idea its a clone and think its authentic.  They have no idea because they bought it, think they couldn’t figure out how to use it (when in reality, it didn’t work) and just re-sell it as authentic.  Either way, intentionally or nu-intentionality, you get stuck with it, and you may or may not know it until it burns out or destroys your cars computer costing you hundreds or thousands of dollars and untold hours and days of misery, just to save a few bucks!

To use a Tech 2 scan tool in this day and age, 90% of all software packages GM offers require a minimum 32 MB memory card.  A 10 MB card, although very useful for backup, data logging and flash programing, is useless for diagnostic programing for North American Operations (NAO), Saab, Isuzu, Suzuki and pretty much any of the other available software packages Tech 2 offers.

If you think that, just because your using a  Auto Scan ToolTech 2 for your personal use, you can buy a cheaper import unit, think again!  I see HUNDREDS of these units thrown on the scrap heap every year.  They cannot be repaired and are non-serviceable.  Not all of these units will accept GM programing, thus cannot be updated.  They are of grossly inferior quality and have an extraordinary failure rate, and damage more cars than I can express to you.
A couple ways to spot a clone:

If the Tech 2 your looking at has no production date on the inside cover for the software card on the top of the scan tool, its a clone.  If there is no date, your looking at a clone!
If the “VOID” warranty sticker is opaque in appearance and difficult to read, its a clone.
If the Tech 2 has little white stickers over the case half’s on each side with the word “VETRONIX” and Chinese symbols denoting a date, its a clone.
Most clones are being sold from Asian or European countries.  Why would anyone be selling an item that was built here, shipped over there, and than put up for sale over there, to ship back here?
Finally, there are PLENTY of people here in the United States selling clones!  They buy a few hundred of them, and un-load them on unsuspecting people calling them “slightly used” or surplus.  If they have very little feedback, or the feedback looks like it was written by a a foreigner, your likely looking at a clone.

90% of the units on Obd2tool are being sold by people who are intentionally selling you garbage, import clone units. They don’t print that they ARE clones, but they don’t print that they are NOT clones!  As long as their are ignorant people who are led only by the concept of saving a few pennies, there will always be clone items out here looking for an idiot to mate up with.  Of the other 10%, half of them are selling you a clone are have no idea they are selling you a clone because they have no idea what they have or they are un-loading an early or late domestically built model that they are trying to get off of because it has damaged their car or doesn’t work right most of the time.  Of that last 5% half of them are intentionally trying to rip you off!  You do the math!  Of one hundred Tech 2’s posted on Obd2tool, both new and used, maybe 3 to 5 are the genuine article and are high in quality.
If your going to buy something for thousands of dollars, buy it from someone who has the answers, knows the product and has priced it properly.  Please use my experience to educate yourself on what your buying before you go shopping for it, and form your own opinions.  Take advantage of this information to get what you want and get it for a good price.
No matter what you decide to do, thank you for looking in and I hope this information helps you get what you want.

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How to use the GM Tech2 scan tool to perform GM SPS

Topic: GM SPS Programming: Tech2 Tool Pass Thru Mode ECU TIS2Web TDS Calibration Update
How to use the Tech 2 Scan Tool to perform GM SPS Programming in what is known as Pass-Thru or Legacy Pass Thru mode for calibration updates. This can be for the ECU or any programmable module in the vehicle, such as the EBCM, TCM, or Radio that you may want to reflash.

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I’m going to show you a little bit newer technology. So we’re still with the tech two and at this point I’ve pre-connected some things up here I’ve got connected to the diagnostic interface this the unit accessory for the tech two called a candy module a controller area network diagnostic interface. So this connects to the vehicle and then it connects to the tech 2 and then in the tech 2.

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If we were to go into our SPS system what I’m gonna try to show you here. This particular vehicle work we’re working on right now is a 2009 Chevrolet Cobalt.

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If we go to request. What we’re gonna find out really quick is after we say Chevrolet well. We don’t have anything newer than 2007 that we can select. Because this 2000 which is what the remote mode is set up for.

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So how can we update the firmware on the modules for this 2009 well we’re gonna have to go to this to web on the internet. So I’ve got this cable already connected to a laptop over here and we’re going to go ahead and show you how to stew web works which replaced this 2000. So I’m gonna set this guy right next to this laptop sitting on the passenger seat here.

Warning: Pay very close attention to the instructions around power cabling and battery readiness as a power fluctuation during an SPS programming procedure can permanently damage a controller module.

This applies to the genuine Vetronix, HP or Bosch built Tech2 as well as high quality Chinese clones equally and for all makes under General Motors such as Chevrolet, Buick, GMC, Cadillac, Oldsmobile, Pontiac, Hummer, Saturn, Opel, Vauxhall, and Saab.. The programming is illustrated using a 2009 Chevrolet Cobalt LS and the www.acdelcotds.com subscription service features using a Techline PC using Tech2 legacy passthru mode to update the Radio.

Applicable to model year 2008 thru 2013, which is when the Tech2 ended and was fully replaced by the GM Multiple Diagnostic Interface tool, or GM MDI and MDI 2 and TIS 2 Web subscriptions. This method is available with TIS2000 for GM vehicles older than 2008 as well.

 

I recommend that you buy gm tech2 on Obd2 tool website. They are cheap, logistics is fast, and after-sales service is also very good. I have been using it for a year and there is no problem with the quality of the product.

Anyone know GM TECH2 and MID diagnostic tools

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What is the difference between the TECH 2 hand held tool and the newer MID interface you use with a laptop? From what I read, the MID will replace the TECH2 but currently it doesn’t diagnose, just program. I need to diagnose a few issues on a 2007 Silverado, 2012 Cruze and 2013 Cruze flood car. The clones are under $400 so it might be time to get one.

The Cheap $224.00 to $400.00 Tech 2s, made in China and don’t even bother having updates installed.They will crash when when updates are installed.Overall the clone Tech 2s are good for what you are doing and are good as the real version now made by Bosch.The real version was made by Vetronix,Bosch bought out Vetronix in 2003.Also make sure it has the Candi box with it,a must for these CAN vehicles.

The last update for the tech 2 has already come out so, I would think about buying a new one unless you work on a lot of GM products.

Depending on the vehicle you’re working on, the GM MDI (Multiple Diagnostic Interface) will do everything a Tech 2 will do but, you’ll need a laptop and GDS software. Going forward from the 2013 model year, the MDI with a laptop will be the GM Diagnostic tool.

General Motors (GM) has launched Global Professional Diagnostic Tool (GDS 2) – its next generation, PC-based vehicle diagnostic system. GDS 2 is a PC-based platform that builds on the original GDS application, but also incorporates several new features, based on technician input. Combined with a Multiple Diagnostic Interface (MDI), GDS 2 provides an exclusive, effective and efficient system for the diagnosis of all the automaker’s new Global Architecture vehicles.

GM Tech2 Scan Tool pass-through vs go-between

For program a module with GM Tech2 scan tools,there are two methods. One is pass-through and the other is using the Tech 2 as a go-between.

How to do?Here we go:

1.The pass-through is to use with a laptop in the vehicle and it just uses the Tech 2 as the connection between. This is the fastest and easiest way to do it.
That is, the data are directly downloaded from the PC to the ECU in the vehicle.
Although the GM Tech 2 is still necessary in the mode, the data entry and the download control is done directly at the pc. Altogether, the method is faster, and it is recommended when a pc with TIS2000 software is within 3m of a vehicle.

1.  Connect Tech 2 to the vehicle.
2.  Connect Tech 2 to the PC switch on Tech 2.
3.  Start TIS 2000 on the PC.
4.  Select the icon ‘Service Programming System’ (Fig. 1) on the TIS2000 start page.
5.  Start TIS 2000 on the PC.
6.  On the screen ‘Select Diagnostic Tool and Programming Process’ (See picture below) make a selection for

***Pass-Thru mode
***the reprogramming of an ECU that was not exchanged or the replacement/programming of a new ECU
***the ECU location.
Then clock ‘Next’ button.

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2.The go-between method is for when you can’t bring the computer into the vehicle and uses the gm Tech2 scanner as a go-between. You connect the Professional Diagnostic Tool Tech 2 to the vehicle and download the module information that you want to program. Then you disconnect, run to the computer running Tis2000, connect it to the computer and download the programming information for that module, disconnect again and run back to the vehicle, connect it and it automatically programs the module. It can take a long time depending on the module (PCM is the longest).
Have fun in GM Tech II programming!
Good luck!

Tech 2 purchased- quality as my original, works good

Tech 2 review: (credits to David)

My overall impression after playing with the Tech 2 scan tool for a few days- This thing is cheap, works great, and is of the same build quality as my original. Some of the few differences that I immediately noticed are the buttons feel different and the screen is much brighter. The buttons on my original have a distinct “click” feel to them, and the clones are mushy. However I found that the more that I press them, the clickier they get. The screen being brighter is a plus.

I just did a “Fast-Learn” on a G8’s 6L80E last week with mine. A Snap-On MODUS was not able to do this. There are simply factory diagnostic procedures that a Tech 2 can do on GM vehicles that no other tool can. But yes, to reflash PCM’s, TCM’s, etc, you need to have authorization from the Tech Center, which means you have to be a dealership or a paying subscriber to the service which is a serious chunk of $$$$.

I reflashed my ecm. only have to buy the 55 dollar three day access. the Car Diagnostic Tool tis2000 software to flash, and the dongle key to unlock the functions to flash is and extra 25 dollars, and that was why my tech 2 cost me 325. cause i bought the software and dongle with it.

With that said, Bosch (who now owns the rights to GM Tech 2’s as they purchased out Vetronix), will not support the unit because it’s a factory knock-off. So should you have to replace the VCI module (I’ve had to replace mine due to wear and tear on the connection where it damaged the motherboard inside), or any other necessary repair.

Also, Obd2 tool Tech 2’s can only be updated through 2009 MY vehicle info, was my understanding from GM. For 2009+ GM has gone to a new setup called MDI. MDI is backwards compatible with pre-2009 GM vehicles (it even has the software on the screen to emulate the screens you’d see on the T2).

GM Tech2 Service Programming what is required

To perform service programming with GM Tech 2 Scan Tool, you need following:

1. Tech 2 scanner
2. 5 CDs (2 default CDs in package and 3 TIS2000 software CDs)

Tech2 User Manual CD

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GM tech2 default TIS2000 CD, no USB key, cannot program SPS

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3. USB key security dongle

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4. A RS232-DB9 adapter
5. Laptop/computer with COM Port
6. Connect RS232-DB9 adapter with Tech II

GM Tech2 scanner package without TIS2000 and USB key, cannot do service programming:

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How do I use GM TECH2 to replace Opel Corsa C ECU

This article is just sharing real experience when use GM Tech 2. Hope this helps someone.

I decided to invest in some tools to diagnose my Opel. After a couple weeks of searching all over ebay, aliexpress and other online store, I finally found the cheapest one on obd2tool.com, they were very fast to respond and answer all of my questions. I exchanged emails with Customer service for about 3 days before I finally decided to purchase a GM Tech 2 clone here. I ordered it on Tuesday and I picked it up at Friday (I missed the fed ex guy and you have to sign for it). Yes, it only took 3 days delivery!

I paid $349 for it. The quality of this is amazing. I would never be able to tell it was a clone. I hooked it up to my car and was able to replaces Opel Corsa-C ECU.

So here it is….

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Below is the procedure, I search and learn from forum members:

1. Obtain all ECU pin codes especially second hand ECUs (immobilizer or engine). Scan old ECU to obtain VIN code and then obtain car passes to match.
2. Obtain all keys they will be required at end of procedure. SPS program new engine ECU with vehicle engine code and VIN number.
3. Configure engine ECU CAN configuration (Engine/ programming/ program CAN configuration)
Configure engine ECU variant configuration (Engine/ programming/ program variant configuration)
4. Reset engine ECU if second hand ECU use pin code from car pass (body/ immobilizer / additional functions/ reset engine ECU)
Reset immobilizer (body/ immobilizer/ additional functions/ reset immobilizer)
Reset BCM (body/ BCM/ additional functions /reset BCM)
Reset instrument cluster (body/ instrument/ additional functions/ reset instrument)
5. Program immobilizer function (engine and immobilizer): this will program everything together includes new keys. Have all keys programmed (body/ immobilizer/ programming/ program immobilizer function).
Check and clear all fault codes Engine immobilizer dash BCM ABS and gearbox. Road test and recheck it.

Great! I can see automotive diagnostic equipment GM Tech 2 replace a new engine ECU for Opel Corsa C successfully!

GM Tech II Saab card not find Bus ECU but GM card Solution

Car model and year:

’03 Saab 9-3

Tools I own:

I finally decided to order a clone from seller Obd2tool.com. It arrived this week (Monday), complete with all of the bits and pieces it was supposed to have, including a Saab card and a GM/Chev card.

I bought GM Tech2 $252 from obd2tool.com:

Package with Saab Card, GM Card , TIS2000 and Candi interface

shown as following package picture:

gm tech2

OS and computer configuration:

I have XP running in a VM on my Thinkpad with Windows 7 Pro, and TIS2000 is talking just fine to the Tech 2 via the USB to 232 adapter.

Operation:

1.Saab card can’t find any kind of Bus, or ECU

I tried connecting it to my wife’s ’03 9-3, and no matter what I do, it just can’t see anything on the car – it can’t find any kind of Bus, or ECU. The reason I finally ordered the thing was to marry a new ECU to the car. My cheapo card reader reads DTC’s and other info from the car just fine. I have tried it with version 143 and 148 (I re-flashed the one card with different versions) – same result, no bus detected.

The car was running, but going into limp home before I replaced the ECU…

2.GM card works fine on my Express van

When I pop out the Saab card, put in the GM card, the Car Diagnostic Tool Tech 2 works fine on my Express van – I was checking out all kinds of things, reading live data from the engine, playing with the radio, no problem.

Solution:

Used the Candi interface on my Express van – it worked.

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How Sleek is Maxisys Pro Full Auto Diagnostic System

1.Smart Screen: Autel Maxisys Pro MS908P comes with a whopping 9.7 inches IPS LED-backlit capacitive touch-screen with resolutions of 1024 x 768 pixels. As a result, it provides ultra-clear display of contents, to the users, with glossy wide-screen. The screen also supports multi-touch. You can use up to 5 touches at the same time.

2.You can also enable a virtual on-screen keyboard with this device. It saves the space and gives wider display area.

3.Auto Focus Camera: The product comes with built-in 5 mega-pixel rear camera with a flash-light. The camera provide high-quality images as it has auto-focusing ability.

4.Quick Battery Recharge: The device has an 11000 mAH-3.7v rechargeable battery made up of lithium polymer. This ensures up to 8 hours of continuous operations. It takes just a couple of hours to recharge the battery that means another 8 hours of operations.

5.Super Fast Performance: The device runs on Android 4.0 Ice-cream Operating System with multi-tasking feature. The device has an extra-powerful Cortex-A9 Samsung Exynos 1.4 GHz quad-core processor providing unrivaled speed performance. The device system boot-ups in 20 seconds that is approximately 5 times faster than any other such product.

6.Big Storage Capacity: The diagnosing tool has 2 GB DDR-3 RAM that dumps huge amount of temp files and supports frequent live streaming. The dedicated RAM avoids the device-hang problem and ensures smooth operations. The 32 GB Internal Sata Hard Drives stores all the detailed history of your clients. 32 GB storage space is enough for medium and big repairing houses.

7.Lastest Technology: The Autel Maxisys Pro equips with the latest AutoVIN technology with advanced Auto-Scan functions to identify CAN-Enabled vehicles, in one touch. It displays the data in the form of text and graphs for efficient analysis. The device can be claimed as the most intelligent system as it scans all the diagnosable ECUs on vehicles. In the nutshell, it’s not just an engine scanner.

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8.Fast Data Transfer: The package comes with both dual band (2.4 GHz and 5GHz) 802.11n Wi-Fi technology and long range class 1 Blue-tooth connectivity that provides it’s users with an ultra fast Vehicle Communication Interface (VCI). You don’t have to wait. Just plug it into the OBD-II dashboard and it will diagnose with in seconds.

9.OE-Level Coverage: The device covers the most extensive OE-Level Diagnostics. It will save you the hassle of contacting the car dealer for any un-identified engine error. OE-Level library contains every possible error codes.

10.Reliable ECU Coding: The device comes with a coding function to track the vehicle control modules i.e. ECUs with some extra parameters. There is a provision for reliable coding and safe performing environment.

11.Future Proof: The Autel company frequently releases new versions of the software and engine code library that makes it compatible for newly launched vehicles. If any “Unknown” or “New Vehicle Found” error is reported, the custom software updates are made available to the users within 48 hours. It is like, every customer is treated like an elite by the company.

12.Lightweight & Compact Size: The total weight of the device is 28.9 Pounds. That makes it an easy to carry gadget. The product has been designed to be carried single handy yet it doesn’t mean it will fit in your pocket. In particulars, the product dimensions count as 9 inches in length 18 inches in width and 7.6 inches in height.

13.Additional Features: This professional engine scan tool has many other fabulous features such as 2.0 USB connector, microphone, dual speakers, 4-band 3.5mm audio jack, Accelerometer and Ambient light sensors, RJ45 Ethernet connection, 3G/4G compatibility, WDMCA module and many more. Also, it supports multi-languages including English, French, Spanish, German, Russian and Portuguese. What else are you looking for?

14.Remote Technical Support: “Autel” is known for it’s after sales services. If you face any problem with the device, just give them a call and a technician will be there to assist you. The technician can access your device remotely. That leads to faster resolutions and high satisfaction. The support is custom as well. If the device has a non-resolvable fault, a custom software upgrade or replacement is provided as long as the warranty is not void.

15. Free MaxiTPMS TS601 Testing Scanner with every purchase. It acts as a quick scanner or an additional scanner for your team mates.

16.Enables cloud-based data managing for saving records and notes. You can use any free cloud storage service as the files for scanned data are very small in sizes. Typically, in Killobytes.