Old Truck Camper Wiring Question

[The_Stuff]

I picked up an old okanagon truck camper today. Has a 3 pin wiring plug for it. Does anyone on here know hows those get wired up? its like a 4pin flat for utility trailers but only 3 pins total. so obviously 1 is ground. just not sure what the other two are for or what they need wired for amps etc.

[OldCoot]

I would match the size or exceed it with the receptacle wiring. As you say, one wire is ground, one would be negative and one positive. An ohm meter should be used to determine what wire is what.

[Herk7769]

So without a diagram I am shooting in the dark here.

Are you talking about the shore power plug or a connection between the camper and the truck. (like lights or battery connection).

[OldCoot]

Originally Posted by herk7769

So without a diagram I am shooting in the dark here.

Are you talking about the shore power plug or a connection between the camper and the truck. (like lights or battery connection).

I assumed (I know) with him saying it was like a utility trailer flat 4 except with 3, it was the 12v and not shore power.

[Herk7769]

Being a slide in truck camper I am at a loss as well.
Just trying to be helpful.

[TURBS]

On my truck camper .
Ground.
Running lights.
12v power.

[The_Stuff]

Believe it or not I found the original owners manual (a duo-tang!) hidden in one of the storage cabinets! even has a brochure from 1979 advertising the 1980 models to come!

Camper was an OKanagon brand made in Canada.

I think this photo will be relevant for anyone with the same question in the future!