Vag Tach USB user manual

Bruevich · Moderator Joined: 12 Feb 2006 Posts: 232

2. System requirements:

VAGTACHO.EXE is a Windows based program that will work on any PC or laptop
that has instaled Microsoft Windows 98, 2000, ME, XP.
Hardware requrements:
Any PC or laptop with Pentium / 133MHz processor or greater, and a free USB port.

2.1 USB Drivers instalation
Caution: This hardware interface requires drivers instalation to work!
Please use only drivers that are supplied with this product. There are no other or better drivers.
For all Windows XP users:
Please disconnect your PC or laptop from Internet before install drivers!
Don't use Windows 'original' drivers! This is important!

2.2 How to install drivers:
Connect OBD interface to any free USB port. This will start Windows procedure to install drivers for new
hardware found. Tell to Windows where the drivers are on your harddisk.
If Windows ask you for a file with extention ".cat", press "Skip File"!

2.3 Uninstall drivers
If you wish to uninstall drivers, go to control panel and uninstall drivers with standart procedure.

3. How to work with software
Connect OBD connector to car diagnostic socket.
Then connect hardware interface to any free USB port of your PC or laptop.
Start program VagTacho.exe. Select ECU from menu. If you don't know type of kombiinstrument,
press 'Connect Any Tacho' button. Program will try to connects any kombi and will display type
of kombiinstrument. Then press disconnect, and select appropriate ECU from menu. There is no
problem if you do wrong selection, but all other functions will work only if you select right ECU.
After selecting ECU, press "Connect Selected ECU" button.
If everything is OK after 5 seconds you will see kombi info on display and program will try
to log in to the ECU. After successful procedure, all useful buttons on screen will be enabled.

4. Commands

4.1 Select ECU from Menu
This option selects type of ECU that user will try to connect.

* (There is selections for VW/Seat/Skoda immo box. It is usefull only if you have an alredy working key,
and switch ignition ON with this key. Works only for Immo1 type immobilizers! )

4.2 File
User can save and read files to / from program memory buffer.

4.3 Connect Any Tacho button
By pressing this button user can connects to kombi, and read info for any car's kombiinstrument.
This is usefull when type of kombi is unknown.

4.4 Connect Selected ECU
By pressing this button user will connects kombi or immo box which is selected from menu.

4.5 Read Info
After pressing this button, program will shows ECU info. Press it twice to read whole information.

4.6 Read PIN
Program will try to read PIN code for log in to the selected ECU. If the operation was successful,
PIN code will be shown on display.

4.7 Change Mileage
This will change mileage counter on kombi display. After pressing, program will try to read actual
mileage, then user may enter 'new' mileage and press 'Continue' button. For some kombiinstruments,
it is required to disconnect and reconnect car battery after this procedure.

4.7 Stop Action
Pressing this button will cancel any command that is in progress. Not all commands can be stopped,
it is usefull only for some of them.

4.8 Read eeprom
This will read ECU eeprom memory and store data into memory buffer.
It is usefull if program is logged in to the tacho, but can't read PIN code automatically.
User can save whole eeprom data to a file.

4.9 Program New Key
This will open a new window. User must enter correct PIN code , and number of
new keys to program. Then press OK , and read messages from software.
The number of all programmed keys must be greater than zero, otherwise there
are some error.
Note: If you have read PIN code before this procedure, you have to disconnect,
turn OFF ignition, then ON and connect again with "Connect Any tacho" for tacho,
or "Connect selected ECU" for immo box.

4.10 Disconnect
End of communication command.

4.11 View memory buffer
This will show memory data on screen in another window.

4.12 Write eeprom
Same as its name. Upload file in memory first!

4.13 Clear ECU errors
This command will erase all trouble codes that are stored in ECU memory.

5. Error Messages
In case of receiving any error message, user can try to repeat same operation again.
If error message continue to appear on screen, this means that there are some fatal error,
or kombiinstrument or ECU is unknown or program can't log in.

Caution:

This software may not works on some types kombiinstruments.
Also some automated functions also may not be executed due to
variety of types and software versions. The autors of this software
has no ability to test all exsiting types and models of kombiinstruments,
and therefore there is no any guarantee that desired actions will be executed.

Warning:
For all Motometer dashes:
There is some very important information in eeprom memory of this types
kombiinstruments. If you erase eeprom, or corrupt original data,in some
cases you may not be able to write or read eeprom at all ! Message
"ACCESS DENIED" will be show when you select tacho !