Trailer Wiring Harness

I KNOW OF 4 WIRE HITCH CONNECTION, WHY SO MANY WIRES?

I have to ask, what was the last thing you were hooking up before the problem started. Did you do any wiring under the dash possibly a radio install, or a wiring harness for trailer at the back of the car. If so, you should look for shorts in those areas. I don't know how easy this will be for you, but start looking.GOOD LUCK FRIEND.

It's easiest to buy a T-One Connector. No need to cut wires, it will plug in to your factory harness and give you a flat 4 connector.

http://www.etrailer.com/Custom-Fit-Vehicle-Wiring/Nissan/Pathfinder/1996/118361.html?vehicleid=19961175089

some van don t have a ground wire. hook up to trailer put jumper cables to frame of trailer and van if works install a ground wire plug

I think the trailer wiring is incorrect.

Get a harness that just tees into the rear lamps. On the drivers side rear of the vehicle you should find a connector for the back lamps.Disconnect it there and tee into that harness.Route the wires out of harms way and you are goos to go.Hope this helps,
NISSAN CERTIFIED TECHNICIAN, KEN

If the Nison lights are working it has to be the wireing from the car to the trailer or the left bulb or socket on the trailer. Also if this trailer wasen't wired for this spicific car it probably won't work right anyway. When checking the wireing I find that findind the ground wire on both the car and trailer are one and the same at the connection . Then it just a matter of checking each wire with a batery to determine which wire is for which light. And making the right connection to the car. Some cars the signal wire and the brake light wire are the same wire .

Sounds like the converter is bad. Go to http://www.etrailer.com/faq-wiring.aspx and check the testing section. Hope this helps.

First check the fuses. There may be one for trailer running lights. Check also power at the harness. If the brake lights and turn signals are seperate, there has to be a converter from 5 to 4 wire. For the power to feed back to the brake lights it sounds like the vehicle wiring is direct and not using a converter... or one of the bulbs on the trailer is contacting both contacts. Try http://www.etrailer.com/faq-wiring.aspx and maybe get a simple 4 pin tester that plugs into the 4 pin connecter. Hope this helps.

Get a trailer harness from the dealer, they just plug into the vehicles harness.