I know i am new here and I'm reviving a two year old thread, but I cant take a picture of what I am wondering about and this is the first one I have found. On the end of the dash, there is a big socket that about 7 plugs go into. It there any way of easily finding out what each of these plugs are for? I have an 03 escalade pulled apart doing an evaporator right now. It looks like there was something plugged into the bottom left socket, but I don't remember for sure and cant find anything loose anywhere. I have spent over an hour looking, and really wonder it there was something there. Any help would be appreciated.
Thanks
I can't believe all the work involved just to replace the evaporator core...
Found it! Not sure what it is, but it was easier to see in the light.