Really stuck?

[Dave K.]

As you can see I replaced both harness and trailer connections. Not much changed, the right directional flickers a little better and the right brake light still doesn't work. All running lights work and the left directional and brake lights work good, just like before the connection changes.

Could it be the car, perhaps a fuse or something? I noticed when I run a test light, the right directional is not as bright as the left directional.The brake light is bright.

Any more ideas is greatly appreciated.

Thx Dave

 

[bruceb58]

Do what I suggested in your other thread of putting a jumper cable between the frames of the trailer and vehicle. I believe you still have a ground issue and this will prove it.

 

[Dave K.]

No Title

Hi Bruce, TY!

We think we figured it out. The trailer lights are working just right, my brother hooked his truck to it and everything worked great!

I have a Toyota Rav4 and this is the wiring "before" the flat four connection. We think that black box is the problem. In checking with a wiring guy who does lighting for some of the local PD cruisers, he said they've been known to go bad. Not to mention the ground wire coming from that box is poorly placed. We tried working that and it made the flicker a little brighter but nothing consistent.

So, I'm going to replace the black box and rewire the ground, put it in a better spot.

The good news is I've only spent about 20 bucks on the connections, test light and so on. Time, I've put a lot f time into this however. I really hope the infamous black box is the problem.

Thx, Dave

 

[Maclin]

That is the type of thing I was talking about in the other thread. I had to wire up different cars and trucks for trailer rentals back last century (1970's ), and the "foreign" cars were always a problem, most had to have adapters to convert their wiring to be compatible with domestic trailer wiring standards. The adapters did not seem to last very long back then.

 

[Dave K.]

Had I hooked up another vehicle when I first started I could of isolated the problem 3 weeks ago. No big deal except for the time and frustration. At least I know now...

Live and Learn. :laugh: