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Rewired trailer lights, OB electricians needed

Posted on 11/18/12 at 8:44 pm
Posted by AboveGroundPool
the basin
Member since Aug 2010
3770 posts
Posted on 11/18/12 at 8:44 pm
I put an entirely new trailer light kit on my duck boattrailer this week, everything worked perfectly after I did it, backed the trailer in the water twice to launch and pickup later that evening, only the back right trailer light would come on when I hit the brakes, nothing else worked. All grounds seem to be fine (plug ground on the trailer, each light is grounded to the trailer...can't figure it out, checked all bulbs and they seem to be fine, any ideas?
Posted by Nodust
Member since Aug 2010
22631 posts
Posted on 11/18/12 at 8:47 pm to
I would check the grounds but sounds like you already did. Get some electrical cleaner spray and spray your plug in, could be dirty or corroded just enough.

Check the grounds again. 95% of my trailer light problems have been the ground, even when they looked good
Posted by AboveGroundPool
the basin
Member since Aug 2010
3770 posts
Posted on 11/18/12 at 8:53 pm to
everything is new, except the female plug on my truck, worked fine on the bass boat today, im always told it's the ground 99% of the time, someone told me the the lights should share a ground wire across the back of the trailer, don't see y I need to do this since they're grounded to the trailer, trailer lights drive me crazy
Posted by Nodust
Member since Aug 2010
22631 posts
Posted on 11/18/12 at 8:56 pm to
quote:

someone told me the the lights should share a ground wire across the back of the trailer

Don't see how this would help because of
quote:

since they're grounded to the trailer


Also could be a wire got nicked through the insulation and is going to ground where you don't want it to.

quote:

trailer lights drive me crazy

Yes they do
Posted by magicman534
The dirty dell
Member since May 2011
1571 posts
Posted on 11/18/12 at 9:02 pm to
Check ur fuses for the trailer in ur truck fuse box. I have on in the truck, and one under the hood.
Posted by 2indapink
Member since Mar 2012
541 posts
Posted on 11/19/12 at 7:04 am to
If it was a fuse, none of the lights would work. Go buy LED's and be done with it. If the new ones are LED's, then it is a ground. Clean your trailer ball with emory cloth and then check the wires for broken insulation and maybe rough up/expose/clean the trailer where the ground is for each light.
Posted by jsmoke222000
Lake Charles
Member since Oct 2007
6211 posts
Posted on 11/19/12 at 7:06 am to
quote:

Go buy LED's and be done with it
Posted by Drop4Loss
Birds Eye Of Deaf Valley
Member since Oct 2007
3860 posts
Posted on 11/19/12 at 8:10 am to
I always hard wire the ground to all lights at the bulbs

Screw the one ground to the whole trailer..........
Posted by failuretocommunicate
Lafayette
Member since Dec 2007
1065 posts
Posted on 11/19/12 at 9:07 am to
Had this exact situation occur last year. Spent all damn day screwing around with it. Turns out the fuses for the truck plug were out. Changed them and bingo......we've got lights.

eta.....there were two fuses....one for left and one for right.
This post was edited on 11/19/12 at 9:09 am
Posted by AboveGroundPool
the basin
Member since Aug 2010
3770 posts
Posted on 11/19/12 at 9:26 am to
i'll check fuses but it works fine with the bass boat lights...i'll clean the trailer ball and probably rewire all grounds and see what happens
Posted by meauxjeaux2
watson
Member since Oct 2007
60283 posts
Posted on 11/19/12 at 9:28 am to
quote:

Go buy LED's and be done with it. If the new ones are LED's, then it is a ground.
I have LED'S on mine and my running light on the right side went bad. Don't know how since they're supposed to be completely sealed.
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