8192 Baud bi-directional TTL serial data RX & TX I would be sorely tempted to install the old ALDL jack if I owned a 1995 GM. This looks like 1996 and later J1962 OBD II jacks because it is physically the same jack. Not all positions are populated on all vehicles and usually only one serial data line is present. CLCC (If used) 160 Baud Serial Data TX only (1982-1986 Carburettor Trucks) Repair parts Delphi 12020043 ALDL Jack with 15484100 FEM METRIPAK 280 18AWG Au PLTD terminals. there seem to be more poorly constructed Chinese knockoffs than the real thing now and they are priced the same or more. If I could afford a real Vertronix or HP Tech II I don't feel confident that I could weed out the Chinese counterfeits. Most of us can't afford a real Tech II and those are getting scarce. The Tech I is all but extinct (I haven't seen one for sale in over 2 years). If you can find a working Tech I or a real Tech II they have more functionality than any aftermarket solution depending on your needs. Mr Goodwrench used the Tech I and later the Tech II to communicate with these vehicles. It varied greatly by model, nameplate, year, and even engine choice. It was not standardized even loosely within GM divisions. or at least a whack at it.ĪLDL is an acronym that means Assembly Line Diagnostic Link It's a proprietary GM PWM TTL level Serial communications protocol. PC hardware and software for diagnostic code reading and real-time data logging on the cheap.
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