kevinrubin

Can anyone point in the rigth direction on how to change the polarity on the 3rd brake light on the spoiler/lid?

Thanks for any help.

kilrgt

I gotta ask why?

kevinrubin

I have the smoked 3rd brake light for the lid and was told that it won't work unless you change the polarity...does that not sound correct?

I have the smoked 3rd brake light for the back (in addition to the lid) and it works fine.

kevinrubin

By the way Kilrgt, you have done one of the nicest jobs dressing up the 911 I have seen. While I am not a huge fan of the wings, your 911 looks fantastic.

Meant to share that a while ago when you were posting about your new bumper.

Patrick

Try it first. When it doesn't work (and it probably will), then ask.

kevinrubin

Already tried two different ones. The OEM red one works fine, but the other two don't.

I was specifically told by Sharkwerks it was a polarity thing, but can't find any reference on this forum on DIY.

Any help is appreciated.

Patrick

Quite simply, there are two wires. Swap them. It could be cutting and splicing the wires, or removing the pins and reinstalling them, whatever. If you are unsure of your ability to change the wiring, find a friend who can.

kevinrubin

Thanks Patrick. That is what I assumed, but didn't want to "dig in" until I got others' opinions.

Appreciate it.

kilrgt

Thanks for the Kind words. Back to your question, i must admit that is the first time i have ever heard that switching the polarity.Alex knows his stuff so if it suggests it i would try it. Simply cut the 2 wires, and hook them back up the opposite way they were. You should solder the connections and protect them with shrink tube.What you can try first is taking the connection from the car, and hook up temporary wires( be carfull here not to let them touch as you can short them out and pop the fuse) Then you take the new brake light and those temporary wires and attach those to the leads on the new brake light.Try them both ways to see if this clears up your issue. Good luck and let us know how it works out.

joes c4 cab

Chaning the wiring should not help IMO. It still takes a hot and a ground to make a circuit, no matter which way they are passing through the lamp. Just my humble opinion.

Mitty

...unless your are working with LEDs.

The "D" portion of LED will any allow the current flow in one direction.

I agree, Paul has one of the best looking 996's around. I cannot wait to see what he does to his TT.

Eric - Plug Guy

The 996 rear light does not require polarity, but the clears (we sell 'em) do. Swap the pins in the new light or splice the wires the other way. Piece of cake.

every day

Been there - done that. You MUST change the polarity for the light in the spoiler to work. Just like Eric said, either splice the wires coming from the spoiler and switch them or pull out the pins from the light and switch them.

Congratulations on being **** enough to buy 2 of the smoked lights (just like me)!!!

wwest

Be aware that if you change all brake lights to leds as I did your cruise control will not work. I had to add a load resistor in parallel with the brake leds.

Dharn55

I bought two smoked brake lights from Carnewal. Installed both, one fixed and one on spoiler, both work fine with no change in polarity.