Need tech info on a Pacifica

So, this is where I ended up...









And after all that pulling harnesses apart and checking all the wiring that I could....

IT WAS THE F*CKING GROUND CONNECTION ON THE FRAME!!!!!! G103....

So, thank you to all above. Pulling this ground connection was actually one of the first things that I did. However, I was more focused on making sure that the connection of the ring terminal to the body was good that I completely overlooked the poor condition of the wires within the ring terminal itself. So, after pulling most of the ground wires off of the ring terminal with almost no resistance due to corrosion of the wires themselves. I split the multitude of wires that were going to one single ring terminal up into two separate ring terminals and soldered them on. Put everything back together and uala!.... EVERYTHING is back to working as it should..... This was easily the most brain teasing and painful work I've ever done to a vehicle (and I've completely rebuilt vehicles from the ground up before)....and it all came down to something that I had my hands on in the beginning.....F**K...Oh well. It's fixed. I couldn't have done it without your help and just make sure you double check yourselves as you go along....You may very well save yourselves some huge headaches...