Truck camper wiring

[drericg]

I'm having trouble wiring my 1990 S&S truck camper to my Ford truck. I've only dealt with simple running lights and blinkers. I have a few questions:
1- I hooked up a deep cycle battery as indicated. Does it run the fridge, too, and the 110V inverter? Or are those for hookup only? (Fridge also runs on propane.)
2- How do I get power to the camper from the truck? It appears there is a charger for the deep cycle battery that I'm guessing runs on truck power while on. Or is that from hookup, as well?
3- Wires from the camper lights are now all shorted, checking with ohm meter. They appeared to work before I hooked up the deep cycle battery. I didn't think they were connected to the same system, so may be coincidence. What would cause that?
4- Camper wiring has a blue wire. Previous owner had this connected to white, which goes to ground. Doesn't seem right. Truck wiring to plug has white (ground), brown (running), yellow (left blinker), green (right blinker). Camper has additional blue. Does it go to internal lighting?

Thanks for any help...

[ahicks]

To figure out what's what, we used to use a battery charger on the truck camper wiring. The negative clamp is hooked to a grounded pice of metal on the camper (trim?). The other lead is then used to check each lead - left, right, running, direct short will likely indicate you've located the ground, and when you find the power wire, the interior lights will work. Color of wire guarantees nothing, but generally you have the right plan.

Regarding the 12v fridge, we rarely wired them when was set up for it because they draw too much power. Run better on 110v and propane.

Regarding the power wire coming from the truck, your question is like walking through a mine field... In the most basic form, the power is lead back right from a circuit breaker or fuse connected directly to the positive terminal of the battery. The problem with this setup is the potential to run the truck battery dead with the camper lights. To avoid this, an isolater of some type is often used. I'm not going into that here. You can check on that further on your own. Or you could unplug the truck from the camper when you arrive at your destination...

Answering any question regarding an inverter is going to depend on it's size. There's a huge variance available.

[pwf16129]

you didn't say what year your ford was the newer models have a separate fuse box under the hood. the blue on the camper is most likely a key on hot wire, that is the color used on the trucks at work to power the trailers abs system.
the camper lights should hook to the tail light circuit coming out of the trailer plug under the bed' they make adapters that plug in to the harness don't start splicing wires it can get you in trouble.
on my motor home the battery charges from the alternator,gen set and shore power so best see if you can find a manual for the charger.
and on our fridge we keep it on propane full time cools better and uses very little propane but there are many different ideas on this but for us it works well
good luck and happy rving

[drericg]

Thanks for your help!
The tuck is a 2000 Ford F350 Powerstroke Crew Cab 6.5ft bed.
The trailer is 1990 S&S 9.5 foot.