Do you already own a (like PSA-COM, Lexia 3, or ELM327)?
: A functional USB port for connecting the diagnostic cable. psa-com software free download
: Manufacturers like Secons (OBDtester) provide the software for free download, but it requires an authorized PSA-COM interface (either USB or Bluetooth) to function. Do you already own a (like PSA-COM, Lexia 3, or ELM327)