Trailer Lights problem

This topic has 14 replies, 7 voices, and was last updated 9 years, 11 months ago by Basscatman.

Viewing 15 posts - 1 through 15 (of 15 total)

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September 9, 2007 at 2:03 am #298794

basschaser
Participant

Sounds like a ground wire might be loose on the right rear of the trailer.Judd Lasiter

September 9, 2007 at 3:07 am #298795

Basscatman
Participant

Fixed it!!! It was a loose connection- but it still doesnt explain why the turn signal worked- its the same path of current???? I checked the power at the tow vehicle connection and had power when the brake was pressed. So I started rechecked my connection at the trailer- plug and unplug- then Wah-Lah- there was power and a brake light.

April 27, 2012 at 3:43 pm #262273

Chris4pt3
Participant

Hey guys. Last trip out I decided to check my trailer lights, and they were all messed up. First off, the right side front fender amber is always acting funny, but it usually comes on after a few miles down the road. Ok, so I turned on the parking lights and all lights were on except that amber, and the right rear brake light was dim. If I hit the brake, the taillights would not light up, and I think the fenders would get brighter. If I used the hazards, all the lights would flash. I tested with 2 diff vehicles with the same result. I turned the harzards on and wiggled and inspected every piece of wire I could, and couldnt make it change. Any known areas I should be looking into ?? Does it sound like a ground problem ? The white wire that screws into what looks like the trailer actuator, is that the ground for the actuator only ? I plugged a new RR taillight in, and it didnt change.Thanks2005 Sabre, 150 XR6, Minn Kota Fortrex with Lowrance electronics

April 27, 2012 at 4:49 pm #262274

Chris Iliohan
Participant

Most likely the ground doesnt have a good connection, it is the white wire

April 27, 2012 at 7:00 pm #262275

Chris4pt3
Participant

From the looks of it, the white starts at the plug, and goes straight to the trailer actuator looking part, held on by a screw. Is that the main ground to the trailer ? Its tight.2005 Sabre, 150 XR6, Minn Kota Fortrex with Lowrance electronics

April 28, 2012 at 2:57 pm #262276

Grant2
Participant

Clean the ball on your hitch first ask me how I know this LOL!!!

April 28, 2012 at 4:18 pm #262277

Bass Cat Boats
Keymaster

I keep some grease on the ball, and havent added any in a while. Ill try that though.2005 Sabre, 150 XR6, Minn Kota Fortrex with Lowrance electronics

April 28, 2012 at 5:05 pm #262278

Bass Cat Boats
Keymaster

That is usually a ground issue and folks dont ground the wire harness on one side or the other. We ground the harness from BCB and thus the coupler tie. Usually to the safety chain or cable. White – groundBlue – reverse or lock out solenoidGreen – RightYellow – LeftBrown – Running lights or tail/clearance. Hope this helps!

April 29, 2012 at 8:51 am #262279

Chris4pt3
Participant

I have looked over all the wiring where it goes through the holes in the trailer, and tryed to wiggle the wiring but cant make it change. The white wire starts at the trailer plug, where does it end ? Should I be Ohming out any wires, where would you start BCB ?2005 Sabre, 150 XR6, Minn Kota Fortrex with Lowrance electronics

April 29, 2012 at 1:49 pm #262280

Bass Cat Boats
Keymaster

Have you changed out any lights before this problem or tie down straps? If so make sure that you did not pinch a wire in-between the nut and trailer it will ground out I have done that before as well.

April 29, 2012 at 2:41 pm #262281

Bass Cat Boats
Keymaster

Clearance lights and rear lug bar are often the culprit when they are bolted down. This is indicative of a bad ground. Check the ground on the vehicle as most dont tie the white wire to the frame. You have to check the ground wire on each vehicle for a good ground, then the trailer. It really is quite a simple system.Last edited by Bass Cat Boats on April 29th, 2012, 2:45 pm, edited 2 times in total.

April 29, 2012 at 4:27 pm #262282

Chris4pt3
Participant

Grant2 wrote:Have you changed out any lights before this problem or tie down straps? If so make sure that you did not pinch a wire in-between the nut and trailer it will ground out I have done that before as well.Nothing has changed since last year when it was perfect. I will give it another look. 2005 Sabre, 150 XR6, Minn Kota Fortrex with Lowrance electronics

July 10, 2016 at 5:12 pm #286608

Bass Cat Boats
Keymaster

Could be a fuse in your truck. Check to see if there is power at the brown wire at the plug. If it is a fuse and it blows again, start looking for a possible cut or nick in the brown wire somewhere in the trailer.

July 10, 2016 at 5:13 pm #286609

Bass Cat Boats
Keymaster

It will be related to the brown wires. Those control running lights and a battery direct (power pack) would test these for you. We have seen clearance lights crashed into and go to ground knocking out the vehicle fuse. Also the pigtail itself can go bad inside the molded rubber plug.

July 10, 2016 at 11:24 pm #286610

seebassk
Participant

Tracked the brown wires and where it branches off to power the fender clearance light was the problem…redid that wire and ground and everything works now.
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