Ok, I am thoroughly confused. A little back story- I am making my FToy street legal. Before anyone starts the debate, it's gonna happen, it WILL be road legal. I have already had the DMV Inspector at the house and he is currently getting me a new VIN for my buggy. All I need is proper lights, horn, mirrors, and a working speedometer. The problem now is the lights....

I'm going with a basic "trailer light" setup. From my switch panel i'm running 2 switches for turn signals (left and right) wired from a common power source that has a flasher in it, so either can flash, or both together will be "hazard". The third switch is planned to be "park lights", and the fourth is headlights. The brake switch is handling the brake lights, obviously. I'm handling the wiring through the "taillight converter" boxes to make everything work.

For the rear the trailer light setup is Brake to brake, left to left, right to right, park to park, and ground to ground on the "input" side of the converter. On the other side, I have park to park, left is left and brake, right is right and brake, and ground is ground. That should give me my park lights, my brake lights, and make the brake light flash when I need to turn (just light a trailer, right?).

The front is a little more confusing... I'm doing the same thing, but i'm using single-element bulbs for the front park/turn lights. So, here's my logic. If I use another converter box, I can run left to left, right to right, park to brake, ground to ground on the "input" side. On the "output" side I have Left to Left/park, right to right/park, and ground to ground. I see it as when I "turn" the park lights turn correctly as turn signals. When the "park" lights are on, the park lamps will flash "off" to show when I turn.

Does that make sense? It does in my head, but it isn't working. There is some kind of back feed that isn't letting the flasher flash, and there is power to the switch panel on functions that are not supposed to have power on them when other things are on (i.e. the turn signal LED's on the panel are lit when the park lights are switched on...).

What am I doing wrong?

Ok a follow up to what I did...

I never got both converter boxes to work like I wanted, so I took the front one out and just ran the front left to left, right to right, and park to the headlights so when the "park" lights are on the headlights and rear taillights come on. The front signal lights are just signal lights now...

It seems to work just fine now. I have brake lights, park/headlights, and turn signals fully funcional. I called the Inspector today and it may be another week before I get a VIN, but that's fine.

I'm lurking in your thread, but sorry I don't have any advice.
I'm not too worried about the fronts, but plan to copy your lead and use the trailer controller box for the rears.

Not sure on my train of thought, but I'm almost thinking rewire it with a coverter for each side of the vehical, Trying to draw it on paper now.



edit: See if this makes sense.

A converter for each side. on driver side coverter.

Connect left turn flasher/switch to brake input on coverter.
Connect park switch to converter left turn input. (also tee off park switch to rear park light)
Connect brake switch to coverter right turn input.
Connect converter output left turn/brake to front left turn/park light
Connect converter output right turn/brake to rear left turn/brake light.

Then do this for the other side with the other coverter.

I'm lurking in your thread, but sorry I don't have any advice.
I'm not too worried about the fronts, but plan to copy your lead and use the trailer controller box for the rears.

I've done the "trailer box" in the past on my old FJ40. The factory lights came out and the 4" round LED lights went in the body. It worked flawlessly, but I guess the 2 boxes together created some sort of loop that wouldn't let it work.

Off to wire a horn and get some mirrors...

I ran oval red trailer lights for my tail/brake lights, and round red for my turns in the rear. I have a set of round amber for the front turns, but remove them when on the trail. They are the marker lights off a Chevy dually. Headlights are seperate, and the brakes use OEM switch. The markers, headlights, rock lights all have their own switch on the panel, and the turns are run off a dual position momentary toggle switch. Works well enough for steet legal in Colorado.

As for mirrors, I am using the 4" spot mirrors for semi trucks. The L bracket included with them fits perfectly in the Hendrix X on the A-post. Only broke 1 mirror in countless rolls.