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 > 7 way socket not working

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Corner3

Ohio

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Posted: 08/13/19 10:41am Link  |  Quote  |  Print  |  Notify Moderator

Hello - 1st time camper owner here & having some trouble with my pickup. Whenever I plug my 7 way plug into the socket of my pickup I have no lights/brakes on my travel trailer. I plugged into a relatives truck to make sure the outlet on the travel trailer was good & it worked. So I’ve pinpointed the problem to my vehicle but honestly don’t have any idea how it should be wired so kind of stuck at this point. Any help would be appreciated

troubledwaters

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Posted: 08/13/19 10:46am Link  |  Quote  |  Print  |  Notify Moderator

Clicky

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Verde Valley

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Posted: 08/13/19 10:49am Link  |  Quote  |  Print  |  Notify Moderator

Check your trucks manual for ID of Fuses then check the trucks fuse panel to make sure the fuses are installed


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enblethen

Moses Lake, WA

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Posted: 08/13/19 10:56am Link  |  Quote  |  Print  |  Notify Moderator

First guess is the fuse for trailer connector. Depending on tow vehicle, there could be one fuse that powers all the lighting circuits to the trailer connector.
Others have separate fuses for each function.


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romore

Okanagan valley British Columbia

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Posted: 08/13/19 10:56am Link  |  Quote  |  Print  |  Notify Moderator

You may have to remove the receptacle on the truck then slide back the protective sleeve to inspect the connections. They may be corroded or loose, it's a common problem. Don't lose the tiny grub screw.

opnspaces

San Diego Ca

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Posted: 08/13/19 11:01am Link  |  Quote  |  Print  |  Notify Moderator

Well you have a few options. #1 do you have a test meter of some kind or even a 12 volt test light to see if you are getting at the plug? If so see if you are getting any current to any of the blades in the socket.

Are you dealing with a 4 wire flat pug or a 7 bladed round plug
Check your ground. Just take a standard automotive jumper cable and connect the black wire to a bare metal spot on the truck and on the trailer. Do the lights work now?

Get out the owners manual or look it up online and then check any fuse labeled "trailer" and replace any that are blown.

crawl under the back of the truck and see if the socket is even wired up.

Give us the year make an dmodel of the truck and we can help find the fuses for you.


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Groover

Pulaski, TN

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Posted: 08/13/19 11:16am Link  |  Quote  |  Print  |  Notify Moderator

My truck has a quick connector on the reverse side of the plug so that they can mount the plug into the bumper before installing the bumper, the attaching the wiring harness after the bumper is mounted. Look for and check that connection.

agesilaus

North Florida

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Posted: 08/13/19 11:30am Link  |  Quote  |  Print  |  Notify Moderator

Just a heads up on my truck the trailer lights are controlled by relays under the hood and they may blow if you pull the 7 way plug while the truck is on. I don't know if all Ford HD trucks are like this.

You can also buy a cheap tester from Amazon


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Corner3

Ohio

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Posted: 08/13/19 01:22pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks everyone. I’ll start with these ideas this evening. For reference it’s a 2002 ram 1500

opnspaces

San Diego Ca

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Posted: 08/13/19 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

This is the under the hood fuse box located in front of the battery on the drivers side. I believe #11 is really #12 since there are two 11's. It may not use all of the fuses, but it should at least have some of them.


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