Turn signals

[Alan36]

I just rewired my boat trailer. I put all new lights and wires from front to back. Everything works except the turn signals are very dim. Now when I step on the brake they work fine. I have checked all the wires and grounds. I even hooked a ground wire from the battery on the truck to the trailer and the lights on the trailer. Can someone please help me with this problem.

 

[Maclin]

Can you rig up a 12v battery to try just the trailer lights unhooked from the vehicle.

 

[acicomp]

Is it the same way on both sides? (Left and right) Also, do other trailers work fine when hooked to the vehicle? Finally, are these LED or standard bulbs?

Thanks

 

[Alan36]

Yes both sides are the same. They are stanard bulbs. All new. I took it to uhaul and plugged into one of there trailers and it worked fine.

 

[Gary H NC]

The turn signals are grounding back through the brake light circuit. That is why they are brighter when brake applied.
I had a similar issue on a tilt trailer.
The part of the trailer that would tilt was a terrible ground to the back of the trailer......so it sounds like another grounding issue.
Being I never used the tilt feature anyway I bolted it together....problem solved..