1982 Cox Trailer, Wiring Help

Kfarron1

Cadet
Joined
Apr 19, 2012
Messages
9
So I've got a 1982 Cox Trailer for my 79' fiberform runabout...

When I got this a couple weeks ago, all the lights worked 100% for the trailer inspection, Now when I plug in, I have no running lights but I do have turn signals, 4 ways, and brake lights... Why wouldnt I have running lights as well, Looking for help as to where I need to begin my search and testing...

I am a noob to boating and to trailers but I am pretty handy all around, diagrams and well worded advice carries me a long way...

I appericate any and all help from ya'll....

Thanks in advance!
Keith
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,762
Re: 1982 Cox Trailer, Wiring Help

You lost voltage on the brown wire. You know ground is good because the lights work otherwise. Check the brown wire on the tow vehicle. If you have voltage there, check at the trailer. The brown wire feeds the side marker lights and the tail lights. May have blown the tail light fuse in the tow vehicle. Check for frayed wiring everywhere in the system.
 

Kfarron1

Cadet
Joined
Apr 19, 2012
Messages
9
Re: 1982 Cox Trailer, Wiring Help

If I blew the fuse on my yukon, wouldn't the lights on that be out as well ???

I will check everything out and see what it looks like...

If it helps I am towing with an 03' GMC yukon denali xl... its got the tow package...

-Keith
 

SteveMcD

Petty Officer 2nd Class
Joined
Mar 21, 2011
Messages
182
Re: 1982 Cox Trailer, Wiring Help

My F250 has two fuse-boxes. Does yours? I was unaware of that until my trailer lights went out. Good luck.
 

Kfarron1

Cadet
Joined
Apr 19, 2012
Messages
9
Re: 1982 Cox Trailer, Wiring Help

Had a blown 15amp mini fuse under the hood with all the relays,etc...

Glad it was an easy fix, I assume I have a frayed wire and with the lights on the contact of the water may have blown the fuse ???
 

GA_Boater

Honorary Moderator Emeritus
Joined
May 24, 2011
Messages
49,038
Re: 1982 Cox Trailer, Wiring Help

Had a blown 15amp mini fuse under the hood with all the relays,etc...

Glad it was an easy fix, I assume I have a frayed wire and with the lights on the contact of the water may have blown the fuse ???

Kfa - Thanks for the follow-up. So often things are left hanging. And A big Welcome Aboard.
 
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