2G OBD II pin allocations

[spyderdrifter]

I need to find out what pin allocations are on the OBD II plug port for '97 GSTs. I Google'd this but didn't get much. I found one link, but I'm not ready to settle on it just yet. I need to know what each wire on the port is for and which are empty slots.

 

[91-GS]

You mean this?

You must be logged in to view this image or video.

Make sure to test with a meter first where +12V is. That way you will know for sure if this pinout is for male or female plug. OBDII plugs are standard, so one diagram works for all cars as far as location of pin goes. Wire colors might be different.

 

[spyderdrifter]

Yeah, but I know there's not that many open sockets. I'll see what else is on the list I downloaded. It didn't have everything either so I hope that one and this one together work out. I won't be probing anything, its just for a school thing.

 

[91-GS]

Couple more links that might help:

CoDSM
DSMtalk

Even though there are 16 pins there, not all of them get used. It's similar to ALDL (what was before OBD) where aout of 12 pins only four or five were used.

 

[spyderdrifter]

Wasn't a fan of ALDL. That first link is perfect. Saw the second already. Guess this completes what I needed. Thanks for the info