This diagram shows a standard installation for the OBDKey USB unit. OBDKey USB has just one wire which is supplied with the OBDKey USB unit. That means there are no wires from the vehicle's diagnostic socket to the OBDKey USB unit, just one wire to connect the OBDKey USB unit to your computer.
Fully functional USB Car Diagnostic Interface - OBDII / EOBD Car Scan Tool diagnostics.
Have you seen the demo of OBDKey USB and a Windows PC on YouTube?
