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. System functions: - Read faulty codes - Clear faulty codes - 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 of BMW car - Maintainence method and coding information etc It is in stock. For more information,