The CANDI module connects between the Tech 2 Flash’s diagnostic link cable and the OBD adapter. Once the CANDI 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.Includes the CAN diagnostic interface module and instruction sheet.
CANDI Interface for GM TECH2

If you are going to use GM tech2 on a C6, make sure you purchase the CANDI Interface.

Candi of GM Tech2 Description:

An industry change in protocol from OBD II to Controller Area Network (CAN) has begun. In order to perform diagnosis on a vehicle that uses the CAN interface, you will need the Tech 2 Flash and a CAN diagnostic interface module.

Specification:

GM vehicles utilize the CAN interface list

05 Buick Allure (3.6L)
05 Buick LaCrosse (3.6L)
05 Buick Rainier (5.3L)
04-05 Buick Rendezvous (3.6L)
04-05 Cadillac CTS (3.6L)
04-05 Cadillac SRX (3.6L / 4.6L)
04-05 Cadillac XLR (4.6L)
05 Cadillac STS (3.6L / 4.6L)
05 Chevrolet Cobalt (2.2L)
05 Chevrolet Corvette (6.0L)
05 Chevrolet Equinox (3.4L)
05 Chevrolet TrailBlazer (5.3L)
05 Chevrolet SSR (6.0L)
04 Chevrolet Malibu (Body/Chassis only)
05 Chevrolet Malibu (3.5L)
05 GMC Envoy (5.3L)
05 Pontiac G6 (3.5L)
05 Pontiac GTO (6.0L)
05 Pontiac Pursuit (2.2L)
03-05 Saturn ION (2.2L)

Package List:

1pc x CANDI Cable