Hello :-)

Finished installing new LED lights on my trailer the other day. Standard flat 4 connection. They worked fine until I turned on the headlights, which caused the turn signals to be very very weak on the trailer. It was hooked to my 1990 Subaru Legacy.

Earlier this summer I spliced a 5-wire to 4-wire converter (subies have separate brake lights, tail lights, and turn signals)into the Legacy wiring. It worked well with my old non-LED lighted trailer. My newly purchased used cat trailer shorted out a fuse, so I decided to replace the whole system with a LED kit.

So the LED wiring on the cat trailer worked fine when hooked up to my wife's car, a Subaru Forester w/ factory tow package. So I took the Legacy and cat trailer to an 'auto electric' shop and told them to fix it. When went to pick it up, it wasn't fixed at all. Looked exactly the same. I came back today, after they said they fixed it and it still looked the same (very very little intensity difference between turn signal flashing and not flashing, only when the headlights are on). The owner of the shop came out and swore it was normal, that he hooked the trailer to a different rig and it looked jusy the same.

So at 5pm, I took it home, hooked it up to a GMC van, Subaru Forester, and the Legacy. Worked fine on everything but the Legacy. Exactly the way it looked before taking it in.

What is the problem?? Besides picking the wrong shop to have work on it, I mean. For now, I'll keep the headlights off. I told the mechanics to replace the 5/4 adapter, if needed. But since they saw no problem, they didn't try replacing it.

Cheers,
Danno