BMW Group Tester One (GT1) is specially offered to the BMW workshops & service center with the same specification that is currently supplied to BMW franchised dealers. It is the special-purpose diagnostic and programming tool of ALL BMW Series. GT1 is supplied with IBM T30 laptop for DIS(Diagnostic and Information System) and SSS(Software Service Station) GT1 can covers ALL the systems of ALL BMW series cars, It is used to communicate with Electronic Control Unit (ECU) for diagnosis and programming. All the BMW cars with ECU system can be scanned by GT1 system, using DIS, and be programmed using SSS; With GT1 system, you don¡¯t need to split all the parts with fault in the BMW car. GT1 help you to read the fault code, and do diagnosis, programming.The BMW GT1 system allows you to reprogram all the BMW car ECUs to fix software or to install a blank ECU to a repaired vehicle.