dei 451m blows fuses-1993 dodge dakota

I usually CUT the motor wires, the POS side on operating the switch is therefore your switch side.

howie ll wrote: I usually CUT the motor wires, the POS side on operating the switch is therefore your switch side.

That only works on a single motor or anything downstream of the cut. The problem with 5-wire door lock switches is one of the switches goes not to the lock motor but instead to the other switch. That and the entire system resting at ground easily throws anyone who isn't entirely familiar with setup and how to verify things without getting false conclusions.

Yes quite right find the processor or lock control unit.

catback wrote: Do the locks operate at all or does it just blow the fuse. One thing I noticed is my info indicates ORANGE / Purple is lock side and Pink/Purple is unlock side. Also it's quite apparent that you have things mixed up and are causing a short to ground. Bigger fuses won't fix that they'll only better your chances for an electrical fire. How are you testing for switch and lock side of your cuts? Hint: view of the switch is NOT a good determinator.

Okay, just got back from town with a bigger fuse. Do you think it will hurt to try it? We have a meter that reads amperage. We tested the switch to figure out the wires and also double checked them under the dash where we cut the wires to connect the DEI Unit.

Pressing the door locks on the side of the door, yes it works still. Unlock and lock. When I try using the remote to lock the truck, it blows the fuse.

Don't go more than 30 amps though I think that's an approach that will go nowhere please note what Catback said and follow his advice. Manufacturers specify fuse ratings with good reason.

He's saying to find the control unit to hook the DEI unit up to?

After adding the 30 amp in the fuse box, it blew the 20 amp in the DEI unit.. If it doesn't work like it should, I don't need it! :) Lol

Yes.

That wouldn't be the driver door switch?