although on several sites seems to be a simple cisco ethernet usb adapter.
http://alflash.com.ua/phpBB2/download/file.php?id=2963&sid=245c80eccc8c3b512c331c5ddd3e239e&mode=view
see page 12:
https://static.nhtsa.gov/odi/tsbs/2013/SB-10060730-2280.pdf
on this video from Alltech, pins used are...