Mystery wire 2003 E450 Minnie Winnie

[Mashmaster]

I had to fix my windshield washers, was missing the nozzle. When fixing that, I found a wire that wasn't attached to anything.

Does anyone with a Ford E450 know what this blue wire is and where it goes? I haven't found where the broken part of the connector is. It is a 2003 E450 chassis.

It comes out from the conduit behind the oil fill and has some kind of a Barrell fuse inline on the wire.

[Mashmaster]

I followed the other end of the wire and it goes to this little box. Anyone know what it is? Maybe that will help me find where the other end goes.

[bigb]

Being that Fiamm makes accumulators and air horns my guess is an air horn relay.

edit: yup, here it is

[Mashmaster]

interesting, the car horn still works. So I am kinda at a loss.

[bigb]

Someone installed an after market air horn then removed it

[Mashmaster]

Why would someone want an air horn on their RV?

[Eagle5]

Originally Posted by Mashmaster

Why would someone want an air horn on their RV?

Perhaps they want them when crossing Railroad Tracks?

https://www.youtube.com/watch?v=1GCseAN5V2g