The Tech-2 is the same tester GM Technicians use to diagnose GM vehicles. The Vetronix Tech 2 comes with Authentic GM software and provides support for on-board diagnostics on all GM systems 1992 thru 2008
Features:
Authentic GM software in the Tech 2 Flash means the most comprehensive diagnostic software available for late model GM vehicles.
Support for on-board diagnostics on all GM systems 1992 thru current year.
Removable hardware modules provide insurance against scan tool obsolescence.
Large, easy-to-read backlit screen.
RS232 & RS485 ports provide the avenue to connect future devices to your Tech 2 Flash.
Ability to capture stored DTCs, Freeze Frame, and Failure Record for later review.
Ability to view the status of vehicle diagnostic tests as they run.
Bi-directional
The authentic GM 1992-current year software will provide full bi-directional control when performing power train, chassis, and body diagnostics.

Vetronix Tech-2 Specifications
Dimensions
 12" X 6" X 2"
Microprocessor
 32 bit, 16 MHz
Memory
 32 MB flash type II PCMCIA. Type III slot available for future expansion.
Communications
 Integral RS232 communication port.
Screen
 3.8" X 2.8" backlit monochrome with full graphics capability: 320 X 240 pixels. Displays up to 9 vehicle parameters at once
GM Tech-2 Starter Kit with Candi Module & TIS Kit includes (All ORIGINAL and NEW!):

Tech-2 Flash Tester
32 MB PCMCIA Card with GM OE Applications
CAN diagnostic interface module(CANdi) and instruction sheet download ( 199.2 kb )
GM aftermarket Expertec TIS software on DVD-ROM disks
TIS2000 dongle to access SPS/Security features 
Data/Sensor/Trouble Code Manual
DLC Cable, DLC Loopback Adapter
12V Cigarette Lighter Power Cable
SAE 16/19 Adapter
NAO 12/19 Adapter
Battery Power Cable
Storage Case

An industry change in protocol from OBD II to Controller Area Network (CAN) has begun. In order to perform diagnostics on a vehicle that uses the CAN interface; you will need the Tech 2 Flash and a CAN diagnostic interface module. The module connects between the Tech 2 Flash's diagnostic link cable and the OBD adapter. Once the module is connected, it can be used on all GM vehicle applications, even those vehicles using other platforms such as OBD I and OBD II.

 Vetronix GM tech2
Product Description: The GM Tech 2 offers diagnostic functions available for 1992 and newer General Motors vehicles. Tech 2 software is individual for each brand.