I have been using for a long time, The op-Com
(a species of Tech2 usb)
This interface supports a variety of control unit:
Engine
Automatic transmission
ABS
Drivers
Air conditioning
Framework tools
Control unit chassis
And many other...
Support protocol CAN-BUS, and in the multiplexer automatically all the old protocols
Supports the drive OPEL from 1992 to 2012
Supports the reset SERVICE on Astra, Zafira, Corsa, Meriva, Tigra-B
Allows you to program the new keys in the immobilizer ( you need the CAR-PASS)
Cruise control, beautiful control and all units of the group Gm
OP-COM ? a diagnostic program based on PC.
It covers almost all Opel cars, even new cars with diagnostic system based on the CAN-BUS, such as Vectra-C, Astra-H, Zafira-B.
The program lets you to read out and the fault codes, shows you live data, lets make the test output, etc etc.
The program supports many unit? control, like engine, automatic transmission, ABS, sac, engine cooling module, instrument panel(Kontachilometri), the climate control,etc etc..
The diagnostic interface ? based on USB 2.0
The speed? of the communication over the USB-BUS ? enough to handle the speed? impressive systems on high speed? CAN-BUS ? currently 500kbps.
The Software in English and German, but is located in network a video to turn it all of the time in English
In addition, The software up to date ? available on the internet in many forums in the industry.
Hope this help....
Then, if you have any questions, just ask why? the s? to use very well...
Video demonstration:
http://www.youtube*****/watch?v=4j3PD8RHZkw