Update: The Range Tech device which I ordered from Auto Anything.... sigh... isn't disabling my ASS. Tried it a few times today. Plugged in, and for a moment the LED blinks, stays solid, then turns off. I start the car, the LED doesn't come back on, and it doesn't perform the job. This one's version number ends with 6, and I think someone (with a working unit) mentioned theirs ends with 5.
I'd get the other device, but it's illegal for a vendor to send it to me. Don't get me wrong, I love my state for many reasons - but not for that one!