Otkefdi Obd2 Driver Guide

: Users often find the provided drivers unusable, non-certified, or for the wrong model. Most successful users recommend ignoring the CD entirely and downloading official FTDI drivers directly from the FTDI Chip website or through Windows Update.

Which (like INPA or Techstream) are you trying to use?

: It works with most OBDII-compliant vehicles (typically post-1996) for basic tasks like reading and clearing engine fault codes.

: Buy from a known brand (Vgate, OBDLink, BAFX, ScanTool). A $10 unknown adapter is not worth your PC or car’s safety.