when i do my taillight, i'll have two 4 inch round led modules per side (total of 4) ... now i want to be able to operate all of them for tail/turn/brake, so that when in tail mode all 4 come on dim, in brake mode all 4 come in full, and in turn mode, the 2 on the appropiate side flashes (either from off to full if the tail is off or from dim to full if the tail is on) and the other side is either off, dim or full (if the brake is applied). sort of like the configuration used on the Corvette.

the problem is with the brake/turn function... on the led module, there is a ground, tail, and turn/brake lead. the only problem is with the turn/brake lead. it seams as though if i wire the turn lead and the brake lead to my led.... whenever the turn signal is activated, it feedbacks to the other third brake light and the other brake lights and flashes it. what do i wire into the line to prevent the feedback. not quite sure what i'm suppose to look for.

oh ya, and the led doesn't flash full power whenever it feeds back... as if the power is actually being diverted to flash the third brake light..... wierd if you asked me.

UPDATE:

I am attempting to mate a 3 lead light bulb (ground/dim/full) to a 4 lead wire harness/connector (ground/dim/full blink, full steady). also part of this system <interconnected together> is 3 full steady bulbs (rear) and 2 full blink bulbs(front).

the problem i run into is cross contamination of full blink and full steady. when full steady is activated, the light bulb becomes full steady but also activates the other 2 full blink bulbs and makes them come on full steady as well (when they are suppose to be off) and when full blink is activated, the light bulb becomes full blink but also activates the other 3 full steady bulbs and causes it to full blink (when they are suppose to be off).

if my understanding is correct, wiring in diodes to the full blink and full steady lead will stop the cross contamination but will also cause the full blink to not function when full steady is activated since the two signals will mix without any order. I want to stop the cross contamination and have the light bulb function as dim/full stead and full blink without affecting the other bulbs in the system.

what can i wire in to solve the cross contamination and to allow both to function but give the priority to full blink whenever it is active?

Liep,

would it be possible to use a relay to control the third brake light? If so, this should solve your isolation problem. If not, you can always run a few 6 amp diodes in parallel, though you'll have some voltage drop.

no, i don't think that would help since it flashes all the brake lights.... it's as if there's a feedback in the positive lead from the turn to the brake and it's radiating through the taillight system.... as you can see in that pix, the led module has a three wire system, one for ground, dim, full.... and there is 4 wires from my taillight harness.... one for ground, dim, brake full, turn full... matching them up, ....

ground --> ground
dim -----> dim
brake full/turn full---> full

now the problem with that is when the turn is engaged, instead of just flashing the led module, it flashes everything else but the module...

also notice another problem during the tests... the front turn signal bulb will turn on full/steady when the brake is applied. basically the wire is feedbacking on each other.....

now if the diode is added, it solves the problems but it presents a whole new problem... when the turn signal is on.... and the brake is applied... the light becomes full bright and doesn't flash.. unless the brake is released again.

so now i have to find something to wire in that will give priority to the turn signal

Trust me, it's way easier to just change your flasher to a universal electronic one, than to try any other method to fix it.

I could probably change it in 15 minutes. Just look in your manual to find out where it is

ya, i just got that same advice from a buddy of mine, he says it'll last longer in the long run

hopefully the updated question above makes sense .......

I didn't have a ton of time to re-read your question to make sure that I read it right, but if I'm getting you correctly, then they make a trailer adapter to do what you want. It's made for cars that came stock with separate brake lamps, and separate rear turn signals, but want to hook up to trailers that have conventional single brake/turn combined function on same filament. Go to your local auto parts store and buy one. It's just a tiny box with a few wires coming out of it. I got one right here at work I'm staring at now. It's a 'Trailer Works TC 44514'. If this helps cool, but if it's not what you need, then disregard this post