The Rev 1.0 hardware is limited to pre-2018 vehicles (OBD-II protocols). For new CAN FD or DoIP vehicles, you need a newer interface (e.g., Delphi 150 252 Rev 3.0+).
For this hardware to function, it requires both a (to recognize the VCI when plugged into a PC) and the DS diagnostic software . Delphi 100 251 Rev 1.0 Driver Download
Once installed, the device should appear under Ports (COM & LPT) as a "USB Serial Port (COMX)". Troubleshooting Connection Issues The Rev 1
If you continue to experience issues, consider that your Rev 1.0 hardware may be faulty. Replacement units (Rev 2.0 or newer) are affordable on eBay and Amazon, but your existing driver knowledge will still apply. Once installed, the device should appear under Ports
Many websites claiming to offer a "Delphi 100 251 Rev 1.0 Driver Download" distribute malware, adware, or outdated files. Using an unofficial driver can cause:
When connected via USB, the device is often identified in the Windows Device Manager as "Autocom" or "Delphi VCI".
The serial number (often found on Rev 1.0 units) is frequently associated with unofficial or pirated clones of the original Delphi hardware.