Average Reviews:
(More customer reviews)There are many programs out there that expect to use a particular OBD II connection design. This cable provides it. When my 2003 Chevy Venture van's "service engine soon" light came on, I had no way to find out what was wrong save a very long drive to someone who would charge much more than this to tell me. So I ordered it.
It worked right off, telling me of a minor problem (somewhat flakey coolant thermostat) - an easy fix.
Regarding complaints that the LEDs face down - the label peels off easily, exposing four screws. Removing them lets you pop the top off, rotate the OBD II connector and reassemble. Then they will face up for you.
As far as the LEDs - you don't ever need them anyway. And there's no documentation as to their function. But if you want to know, they are (left to right):
Yellow - OBD II TX
Green - OBD II RX
Yellow - RS-232 TX
Green - RS-232 RX
Red- Power
The TX/RX pairs flash when data is being transferred between the cable's microprocessor and the vehicle (OBD II) or your computer (RS-232). The Power LED lights when the cable has power, either from your USB port or from the vehicle's OBD II connector.
So it does what it claims, it is as future-proof as you could ask (all the software runs on your PC and can be upgraded), it's inexpensive, it's small. Pretty hard to beat!
Jim Horn, Electrical Engineer for 34 years
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