Vocom Driver !!top!! ⚡ Direct

If you see anywhere, use the FTDI driver. If you see “CH340” , use the CH340 driver. If you see “VOCOM” with no further info, it’s likely FTDI-based.

The driver acts as the bridge for software to perform heavy-duty diagnostics, ECU programming, and maintenance on: Volvo Trucks & Buses Mack Trucks (1998 and newer) Volvo Construction Equipment Volvo Penta Engines Key Driver Features vocom driver

Installing the wrong one leads to the dreaded “Driver Not Found” or “Device Cannot Start” error. If you see anywhere, use the FTDI driver

| Problem | Likely Cause | Solution | |--------|--------------|----------| | | Wrong driver or corrupted install | Uninstall driver → delete device → reinstall correct FTDI/CH340 driver | | Code 10 (Device cannot start) | Driver conflict or power issue | Try different USB port. Disable power saving for USB root hubs. | | Driver not showing in PTT | Missing RP1210 registry keys | Reinstall PTT or run RP1210_Register.exe from PTT tools folder | | Driver works but no vehicle connection | Wrong baud rate or J1939/J1708 mismatch | In PTT, manually select protocol or use auto-detect | | Windows replaces FTDI with Microsoft driver | Windows Update interference | Use Group Policy or Windows Update Show/Hide tool to block driver updates for that device | The driver acts as the bridge for software