2013 Columbia electrical issue

I'm having wierd electrical issues with my truck. If I press the window switches on the driver door, the dash resets, the trailer lights come on and my engine fan engages. Is there a common point where all these lines cross or could I have a ground issue? I've checked all the main ground lines and they're all tight. Both my mechanics and I are dumb founded.

 

I will try that

 

Nope, changing the switch didn't change a thing. I'm almost certain I have a grounding issue. I just can't figure out where the problem is.

 

For some reason I think it's a crossed wire in the door. I turned the ignition off and the truck kept running until I closed the door, then it shut off. Things are getting weirder and weirder.

 

It's not inside the door and the post is fine, but I think I narrowed it down to a bad ground from the batteries to the frame. With a ground line connected to one of the batteries there's an arc when I recreate the problem. Only the one battery that has the connection to the frame. My shop is going to take apart all the ground lines clean them and see if that corrects the issues. I'm keeping my fingers crossed that's the cause of my electrical issues.

 

So it was a ground issue. We had to come up with an alternative solution. The ground post on the frame back by the batteries is toast. We were afraid we were going to snap the post off, so instead we ran another ground wire off the frame near the starter and grounded that to the cab. Problem solved. Although I now get an occasional squeal from the cb, but it comes and goes. When I have more time I'll completely clean the back post and replace the ground wire, but it was late and I had to deliver in the morning.