96 2500 4x4, 5.9L
Power Seat doesnt work
-Put multitester behind the leads going to the switch and I get 12volts, once i activate one of the switches, i notice the multitester go to 0 volts.
-I then ran a wire direct from battery to the leads behind the switch (same place i used the tester above), the switch works an all the seat functionsoperate. So that tells me the switch works.

-Since I know that the switch works. How can itkill volts to itself with the stock wiring?

 

Sounds like a nightmare, but it could be a relay, a bad ground, or many other things.
I have power seats and the switches are touchy, i have to wiggle the switch to get it to work, have you tried that? I doubt thats the same issue.
Good luck...
let us know what the issue is when you find it. Get a repair manual, they might have a wiring diagram in there that might help you out. check the DIY sections, I found one there for a 01 RAM.

 

since you put a hot 12 volts to it via jumper wire, your problem lies before the switch. a lot of times a bad relay, bad connection or broken wire will read 12 volts standing still, but when you try to move current through it there's not enough path to support the voltage. best way to do it is just work your way back, until you find the problem. if all else fails, just stick the hotwire to it and leave it.

 

My 04 has the same problem, has anyone else seen this? Or have a proper fix?

Thanks.