Ati Radeon X300 Driver Windows 10. Toyota Techstream is the software used by dealerships for vehicle diagnostics and to personalize settings on your Toyota, Lexus or Scion vehicle. The software connects to a car via a Mini VCI cable through the OBDII port. Device Driver For Windows 10. Pc Drivers For Windows 10 here. Cheap cables, available on eBay, emulate a serial port to which Techstream software communicates to your car's CAN bus. The software allows you to access vehicle settings, such as door locks, transmitter, engine immobilizer programming, power window, interior illumination as well as security and headlights. Cirrus Audio Driver Windows 10 here. It is also used to read specific ECU codes from the engine computer, ABS/TRAC/VSC, SRS Airbag and occupant detection systems. Built in diagnostic tools allow you to perform tests on failing parts to determine what is at fault.