www.eobdii.com supplies CANDI Interface FOR GM, VAG-COM 812.4 at a good price. 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, such as vag com or eobd V30 Auto Scanner, you will need the Tech 2 Flash and a CAN diagnostic interface module. The CANdi module connects between the Tech 2 Flash’s diagnostic link cable and the OBD adapter. Once the CANdi module is connected, like for BMW Carsoft 6.5 or elm327, it can be used on all GM vehicle applications, even those vehicles using other platforms such as OBD I and OBD II. It includes the CAN diagnostic interface module and instruction sheet. The following GM vehicles utilize the CAN interface: More products: Benz star, BMW GT1, X431 Master, Renault can clip, SBB Key programmer.