GT1 is offered to the aftermarket in the same specification that is currently supplied to BMW franchised dealers. It is special purpose tool of BMW Series. Gt1 is supplied with a Pentium based laptop PC on a Windows platform connected to a high specific communications and measurement interface. GT1 can complete coverage of ALL BMW systems, one thing that can only be done using the GT1, this function is called Electronic Control Unit (ECU) programming and configuration. Read faulty code, clear faulty code and data stream. Activate state, programming, component test, maintenance data information, components location, wiring diagram etc... TIS AND DIS ARE SUPPLY all of system diagram of all the BMW cars, components location, maintainence method and coding information etc. Can do completely of BMW car system. 1. GT1-SCAN Pro mainbody 2. Network cable 3. GT1 for vehicles with 20pin diagnostic connector 4. GT1 for vehicles with OBD II diagnostic connector