The Bluetooth XTUNER CVD-6 is the China' first commercial vehicle diagnostic adapter based on Android. CVD-6 is an electronic device that connects to the on-board ECU computers of truck, fire engine and motorhome, then transmits information via Bluetooth to the XTUNER CVD application. The CVD-6 adapter works with Class 3 - 8 heavy duty trucks with 9-pin/6-pin Dutch diagnostic port.