ALDL description page

[xxalexx at ix.netcom.com]

> I've noticed some people talking about watching GM data streams on PC computers.
> Wish I could help.  I'd like to do that also.  The only thing I have to offer is
> some old info.  There is a web page, http://www.isthq.com/~dan/aldl.htm, containing
> a GM paper on ALDL interfaces.  The bad news is it is for '82 to '86 cars.  Maybe
> there is some useful info there.
I checked a 96 OBD2 C3500 last year it was putting out 10.4KB VPW 
proritary packed data.  Federal law requires J1979 codes which or a 
open SAE  standard.  It seems only imports are using the legal codes. 
alex