A laptop portable would be the preferred and graceful means to retrieve fault codes from this vehicle’s onboard computer. Unfortunately, the proprietary serial interface cable dongle from my tool box needs a COM port and (all my) computing devices have evolved toward USB 2.0. The only machine in the house with a vestigial serial port was this heavy weight which I manhandled, peripherals, CRT, trailing cables and all, to the garage. Of course, a dealer could do all of this for you… 75 bucks!