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06-11-2015, 03:44 PM
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#1
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Junior Member
Join Date: Jul 2013
Location: Yellowknife
Posts: 8
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electrical box under pin box
There is a red wire that splits into a white and black wire. Black wire is hooked up but white wire is not capped. Wondering where it goes. Thinking it has something to do with electrical brakes cause mine suddenly stopped working but lights work. Any help would be great.
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06-11-2015, 05:17 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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There are 7 wires in the box coming from the cord that plugs into the TV.
Black should be 12VDC positive and the white should be ground. Brake is normally blue, so I am a little confused. Is the stray wire from the break-away switch?
Here is a link to a wiring diagram that should help sort things out:
http://www.etrailer.com/faq-wiring.aspx
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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06-11-2015, 07:12 PM
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#3
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Junior Member
Join Date: Jul 2013
Location: Yellowknife
Posts: 8
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The wire is covered in a red sleeve then it's splits into a black and white wire. Black is hooked up but white wire is not connected to anything. What would red wire be?
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06-11-2015, 07:14 PM
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#4
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Junior Member
Join Date: Jul 2013
Location: Yellowknife
Posts: 8
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The red wire comes from rv not harness
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06-11-2015, 08:15 PM
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#5
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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So the red wire from the trailer turns into 2 wires, one black and one white?
I'm sorry, but it isn't making much sense to me. The red wire on the trailer side could be the power lead to the break away switch, but I am confused why it would split (become) two wires.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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06-11-2015, 08:41 PM
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#6
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Junior Member
Join Date: Jul 2013
Location: Yellowknife
Posts: 8
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this is the box. Wonder if white wire connects with yellow wire
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06-11-2015, 08:49 PM
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#7
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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Okay, now I see what you mean. There are three wires in an insulated jacket, one red one black and one white. It would make sense to me that the white one is a ground of you follow the normal wiring "rules" of RV's. That would mean it belongs with the other white ones.
Quite often there is a bunch of white wires connected together using one large wire nut and sometimes the bundle is so large that a single wire can slip out. If that is the case, then I would be generous with the electrical tape on that bundle and cap to keep it all together.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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06-11-2015, 08:58 PM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by YKX
Attachment 8785 this is the box. Wonder if white wire connects with yellow wire
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The yellow wire is most likely your back up lights. It's in the umbilical from the truck to the junction box and it "dead ends" there. There shouldn't be anything connected to the yellow wire unless you actually have back up lights on your trailer.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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06-11-2015, 09:02 PM
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#9
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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Thanks john for catching that part. It's past my bed time, our hours have changed this week to beat the heat.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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06-11-2015, 09:39 PM
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#10
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Junior Member
Join Date: Jul 2013
Location: Yellowknife
Posts: 8
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Thanks so much for all the help. Will put that wire back with white wires!
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06-12-2015, 12:29 AM
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#11
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Senior Member
Join Date: Mar 2010
Posts: 452
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That black red pair thats inside the red sleeve is indeed the "brake" wires. If you follow them through the chassis they connect to the brake wires attached to the brake markets.
I split that wire pair and used the black one to connect to my electric to hydraulic pump for my disc brake install.
Ron W
__________________
2019 Cougar 25RLS
03 Dodge 2500 Cummins
Disc brakes
700 watts solar
2000 watt inverter
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