What Can I Do With a TECH2
03-28-2017, 05:55 PM
#1
Burning Brakes
Thread Starter
Member Since: Feb 2016
Location: Reidsville North Carolina
Posts: 914
Received 182 Likes
on
132 Posts
What Can I Do With a TECH2
As Far as the C-5 is Concerned, Like the Title States...
What Can I Do With a TECH2?
Used the Search Function but Really Didn't Answer My Question.
As a C-5 Owner Is This Something I Can Use? Is It Used to Tune The Car?
Please Educate Me On What I Could/Would Do With It as Far as C-5s Go
What Can I Do With a TECH2?
Used the Search Function but Really Didn't Answer My Question.
As a C-5 Owner Is This Something I Can Use? Is It Used to Tune The Car?
Please Educate Me On What I Could/Would Do With It as Far as C-5s Go
03-29-2017, 05:40 AM
#2
Tech 2 is a diagnostic tool for the most part. It can be used to program out/in certain RPO's in the BCM and can be used to bleed the ABS brake system without introducing air into the system. The extent to which it can be used to tune a C5 is that if you have a PCM Image that will work for your car you can save the current PCM Image and flash the new one you have onto the PCM. It cannot go in and individually change the tuning tables in the PCM as can say either EFI Live or HP Tuners tuning tools. But then those tools cannot touch the BCM either.
If you do or plan to do a lot of diagnostic work on your car it can be a worthwhile tool. Most of the diagnostic charts in the factory service manual assume the availability of a Tech 2. But you have to learn to use the tool like any other computerized diagnostic tool. It has layers and layers of menues to wade through. But in certain diagnostic situations it can be an invaluable tool because it allows you to turn on and off hundreds of computerized settings to aid in the diagnosis process.
GM intentionally dumbed down the capabilities of the Tech 2 to change things to avoid law suits due to an errant technician that changed engine or emissions settings that could result in engine damage or emissions violations.
If you do or plan to do a lot of diagnostic work on your car it can be a worthwhile tool. Most of the diagnostic charts in the factory service manual assume the availability of a Tech 2. But you have to learn to use the tool like any other computerized diagnostic tool. It has layers and layers of menues to wade through. But in certain diagnostic situations it can be an invaluable tool because it allows you to turn on and off hundreds of computerized settings to aid in the diagnosis process.
GM intentionally dumbed down the capabilities of the Tech 2 to change things to avoid law suits due to an errant technician that changed engine or emissions settings that could result in engine damage or emissions violations.
03-29-2017, 06:37 PM
#4
Drifting
I like that the ever-knowledgeable 8VETTE7 pointed out the differences between accessibility between the BCM and the PCM because there's often a lot of confusion between them, especially when quick questions arise in the FB groups or similar about tuning. For the very basics just look at the "B"CM as controlling the "body" and the "P"CM as controlling "power" (or engine power, rather).
There are also some things that the Tech2 cannot do despite it's accessibility. An example would be the EBCM errors that are spoken of with frequency; you cannot simply use a Tech2 to program the errors out or "remove" them. If it were that simple we wouldn't have all the threads about EBCMs.
There are also some things that the Tech2 cannot do despite it's accessibility. An example would be the EBCM errors that are spoken of with frequency; you cannot simply use a Tech2 to program the errors out or "remove" them. If it were that simple we wouldn't have all the threads about EBCMs.
03-30-2017, 09:46 AM
#5
Melting Slicks
The Tech 2 is a bi-directional scan tool that can access all the 13 computers in the c5 corvette. That means it can scan for DTC codes, allow the adding or removing of most accessory codes like turning off the mag ride shocks to install regular schocks, fixing window regulator problems, etc. For Bi-directional it can active the ABS system to flush the brake fluid, reset the Long Term Fuel Trims, eliminate the 1-4 shift on manual trans, etc. It cannot make changes (like a tune tool) to the transmission or engine management system. For the avid DIY'er it is a great tool.
03-30-2017, 11:41 AM
#6
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
Posts: 32,736
Received 2,180 Likes
on
1,583 Posts
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Here are two very useful TECH2 documents. One is a basic how to user tutorial and the other is a pathing document that you can use to figure out how to get to the end result that you need to test.
Well that sucked,, it didn't up load.
Well that sucked,, it didn't up load.
Last edited by Bill Curlee; 03-30-2017 at 11:42 AM.
03-30-2017, 11:47 AM
#7
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
Posts: 32,736
Received 2,180 Likes
on
1,583 Posts
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Try again
03-30-2017, 12:45 PM
#8
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
Posts: 32,736
Received 2,180 Likes
on
1,583 Posts
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Again
Well,, the users guide was to big to up load. Sorry
Well,, the users guide was to big to up load. Sorry
Last edited by Bill Curlee; 03-30-2017 at 12:48 PM.
03-31-2017, 07:35 AM
#10
Melting Slicks
The user guide along with some other guides can be downloaded from the Bosch site.
https://www.boschdiagnostics.com/pro...combine=tech+2
https://www.boschdiagnostics.com/pro...combine=tech+2
Last edited by Greg_E; 03-31-2017 at 07:36 AM.
03-31-2017, 10:13 AM
#11
Melting Slicks
I sorry, there are only 10 on the C5. Was thinking about another car.
In the C5, the "computers" (technically they are modules) and they communicate over the OBDII compatible DLC data bus to each other. The range from you radio to your ride control, to your HVAC system. Even the Bose head unit talks to the PCM and BCM through this bus, but the CD changer talks over a "private" data bus to the head unit.
In the C5, the "computers" (technically they are modules) and they communicate over the OBDII compatible DLC data bus to each other. The range from you radio to your ride control, to your HVAC system. Even the Bose head unit talks to the PCM and BCM through this bus, but the CD changer talks over a "private" data bus to the head unit.
