Jayco RV Owners Forum

Thread Tools Display Modes
Old 05-18-2011, 08:29 PM   #1
Junior Member
Join Date: Sep 2010
Location: Kingston, Ontario, Canada
Posts: 28
Stupid question of the week

I have a thicker white wire and an orange with what looks like a ground bundled with it
Is the white positive?

Dee5410 is offline   Reply With Quote
Old 05-18-2011, 09:39 PM   #2
Moderator Emeritus
Rustic Eagle's Avatar
Join Date: Apr 2011
Location: Michigan
Posts: 7,370
Great question, because it does differ depending on what codes you look at, and type of application.

In the case of RV 12V systems, the White wire is ground (negative) and the Black wire is hot (positive).

Hope this helps.



2016 GM 2500HD 6.0L/4.10
2018 Jay Flight 24RBS
2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (integrated sway control)
Rustic Eagle is offline   Reply With Quote
Old 05-18-2011, 10:28 PM   #3
Senior Member
Terry's Avatar
Join Date: Feb 2011
Location: Germantown, TN
Posts: 4,923
Not stupid at all! Color codes on RVs and trailers are quite different! Dealing with DC power for quite some time, it took me a while to get used to the black being (+) -- but be careful - if anyone else has done mods to the trailer, you never know what color code they may have used.
2009 Jayco 26BH
2004 Chevy Silverado 1500
2009 JayFlight Manual Library

Want to add a signature to your posts? --> Click Here
Terry is offline   Reply With Quote
Old 05-19-2011, 05:25 AM   #4
Senior Member
edatlanta's Avatar
Join Date: Dec 2009
Location: Maplesville, AL - Home Base
Posts: 2,523
I always check the polarity with a voltmeter just to make sure I remember which color is which. As was said above, you never know what mod's may have been made or, as in my case, is my memory correct.

2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof
edatlanta is offline   Reply With Quote
Old 05-19-2011, 08:16 AM   #5
Senior Member
Seann45's Avatar
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 9,701
Sorry I cannot help with your question BUT will say that anytime I am playing in my RV and testing wires any 12+ wires I find I mark with red tape... since an RV is more car than house I figure Red+ is a better way to make them..
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
175 days boondocking in 2017
215/2016, 211/2015, 196/14, 247/13, 193/12

Seann45 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 10:28 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.