pcm bench harness

does any one know what the female 9 pin d- connector comes from or where its at i have a harness out of a suburben and was trying to do the benchharness looks like it just power & ground supply for the pcm and obd connector but the data line runs to it witch i dont understand i am guessing thats not needed as long as i hook up power and ground from a power supply power being pin 9 on the d-connector and ground being pin 1 from the d-connector it will work guessing the female 9 pin connector my have been on some cars or trucks and not on all any help would be great thanks

Try here~
www.speartech.com


-john

Since you have most of the pieces, here's the rest of the details you're looking for (scroll to the very bottom) --> http://www.efilive.com/download.aspx