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Open Roads Forum  >  Truck Campers

 > Making an umbilical/pigtail cord

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Deb and Ed M

SW MI & Space Coast, FL USA

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Posted: 11/19/14 02:58pm Link  |  Quote  |  Print  |  Notify Moderator

My 1995 Palomino Bronco 1200 didn't come with the cord to connect the camper to the truck's electrical system. My camper does NOT have taillights or turnsignals or backup lights; just marker lights. I've got the plugs and the 4-way 16-ga bonded wire. The 7-way blade connector directions tell me which blade provides 12v to what function.

The 4-way round plug tells me nuthin'. (I DO have the very-generic owner's manual, which tells me nuthin')

The camper plug:
[image]

The control panel in case it matters:
[image]

I'm assuming I only use 3 wires: ground; whatever goes to the taillights/(markerlights); and a line that's 12v always-on?? I'm also assuming that the 16 ga wire will supply the equivalent of a trickle-charge to the battery and that's OK? I won't be running anything 12 volt going down the road.

I've asked the folks at Palomino for a wiring diagram - kind of suspect that's like asking for a unicorn. So do I wire to those 3 points on the plug that goes into the truck's trailer receptacle, then simply play "do you work now?" with the 3 wires at the camper plug?

tonymull

lake stevens, Wa

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Posted: 11/19/14 03:26pm Link  |  Quote  |  Print  |  Notify Moderator

Is there only one of those outlets or are there 4? I ask because my camper has 4 of them but they are to plug in electric jacks if I ever convert to them.

Reality Check

North Bend

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Posted: 11/19/14 03:42pm Link  |  Quote  |  Print  |  Notify Moderator

I'd do a quick continuity test to determine which of those is ground (one of the four prongs we'll assume). After that (once determined and hooked up), jump a hot wire to each of the other three; when the markers come on, you're got that nailed.

Determining which is the charging feed would be my next game; I'd probably just disconnect the battery, run a jumper to my tester, then use a hot wire against the remaining two prongs and see if the tester flinches.

I offer this as a layman's way to chase a solution.


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Switching over to a 2016 F550 with new Ultraride air...just need to get the flatbed built.


RoyB

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Posted: 11/19/14 04:01pm Link  |  Quote  |  Print  |  Notify Moderator

Check with ETRAILER.COM as they have everything trailer including 4-way and 7-way connector and cables etc... Etrailer also has schematics etc for all of the trailer connectors including the 4-way items

Also has vidios that are helpful as well...

[image]

This is a great company for trailer electrical parts...

Roy Ken


My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
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enblethen

Moses Lake, WA

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Posted: 11/19/14 04:09pm Link  |  Quote  |  Print  |  Notify Moderator

This should be the way it is wired.
Four pin round


Bud
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Old-Biscuit

Verde Valley

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Posted: 11/19/14 04:27pm Link  |  Quote  |  Print  |  Notify Moderator

enblethen wrote:

This should be the way it is wired.
Four pin round


That is typical 4 pin but OP stated no turn signals/back up lights etc.

Just running lights.

OP will need to test each pin with DC power OR pull plug and trace wires


Is it time for your medication or mine?


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Reality Check

North Bend

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Posted: 11/19/14 04:51pm Link  |  Quote  |  Print  |  Notify Moderator

Am I the only one that thinks people get so excited about answering a persons question, they don't actually read the question?


Carry on....

Deb and Ed M

SW MI & Space Coast, FL USA

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Posted: 11/19/14 05:06pm Link  |  Quote  |  Print  |  Notify Moderator

tonymull wrote:

Is there only one of those outlets or are there 4? I ask because my camper has 4 of them but they are to plug in electric jacks if I ever convert to them.


Just the one on the front corner/driver's side

Deb and Ed M

SW MI & Space Coast, FL USA

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Joined: 06/07/2004

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Posted: 11/19/14 05:23pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks, everyone - I DID go to etrailer's website, but didn't look at all the available info (missed enblethen's link). I just saw the bare wires and thought "I'll still have to guess at this".

I didn't see anyone saying that 16ga wire is useless for charging the battery a bit (or that it would burn down the camper) - so I'll proceed with "Are you the right prong?".

I don't have a battery at the moment. I'm assuming that once I connect the 12v wire to the correct prong, I'll have a smidge of electric current between the battery connectors? My multimeter will measure millivolts, either AC or DC. And I might not be able to do this for a few days.... I have to share the service bay with our "inventory"....LOL!

tonymull

lake stevens, Wa

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Posted: 11/19/14 07:07pm Link  |  Quote  |  Print  |  Notify Moderator

etrailer has an ask the expert service that can help you out probably.

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