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10-28-2012, 07:47 PM | #1 |
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Location: Opposite the Golden Gate
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Rear LED 3rd Brake light....problem
Greetings,
I'm trying to hook up an 12 inch red LED light strip similar to: http://www.ebay.com/itm/LED-Lighting...item27c96a7d0f I'm having a problem that I can't seem to figure out. When I attach the lights directly to the battery, they and brake lights work fine. When I attach them directly to the stop switch, they and brake lights work fine. When I T them into either the left or right brake light, they don't work, but the brake lights do.. However, if I remove the lamp from the T'ed brake light the other brake light works fine as do the LEDs. Anyone have an Idea how I can use the rear brake light leads and make everything work? Cheers! |
10-28-2012, 08:41 PM | #2 |
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Location: Sugar Land, TX
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Re: Rear LED 3rd Brake light....problem
Brake lights and turn signals are independent. Sure you don't have the stop/turn lights switched?
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10-28-2012, 08:42 PM | #3 |
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Re: Rear LED 3rd Brake light....problem
Savvy - A couple of questions, if I may.
How many wires does your light have? (Probably 1,2 or maybe 3) Since the light uses LED's, its polarity sensitive and likely negative ground. Did the light come with any sort of info. indicating whether pos. or neg. ground? Is it 6 or 12 volt? Is your car 6 or 12 volt. We need a little information and maybe we can figure this out. Best regards, Henry. |
10-28-2012, 10:08 PM | #4 |
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Re: Rear LED 3rd Brake light....problem
Thanks for the replies
Definitely isolated the brake light. No turn lights. 6v Pos ground car. Lights advertised as 6v/12v Two wires, thin speaker-like wire,one striped, one not No directions Striped to Brake switch, no stripe to ground....no work No stripe to brake switch, striped to ground....work When no stripe is connected to brake light and striped to ground...brake lights work, LEDs do not. When brake lamp is removed, but wires connected as above, both LEDs and opposite brake light work. Same results if opposite side is the connection. Replace bulb, LEDs no work, brake lights work. Cheers! |
10-28-2012, 11:06 PM | #5 |
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Re: Rear LED 3rd Brake light....problem
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10-29-2012, 06:55 AM | #6 |
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Re: Rear LED 3rd Brake light....problem
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Gary. |
10-29-2012, 10:50 AM | #7 |
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Re: Rear LED 3rd Brake light....problem
I just had this problem. I found a couple of warm connectors on the directional switch harness. If the LED does not get full voltage it will not work. A bad connection coupled with the brake light draw may be dropping the voltage too much.
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10-29-2012, 05:56 PM | #8 |
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Re: Rear LED 3rd Brake light....problem
Is your new light set up in two sections so it can be used as a turn indicator (as some are) or is it all one light? Sounds like the mounting may be the ground and one wire for each direction. You might try connecting the battery + to the base and battery - to each wire and see what you get. It wouldn't take but a minute and you'd know a lot more about what you have. FWIW
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10-29-2012, 06:34 PM | #9 |
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Re: Rear LED 3rd Brake light....problem
I connected the LED third brake light to the brake light switch, works fine. LED lights dont't draw enough amps to activate a regular flasher; a special LED flasher must be used if you want to have turn signals. With the correct flasher, simply splice the appropriate wire to each turn signal wire, if you have a third brake light that doubles as turn signals, in which case you will have 4 wires on the LED light.
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10-29-2012, 07:27 PM | #10 |
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Re: Rear LED 3rd Brake light....problem
I think you need another brake light switch for 3th light.
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10-29-2012, 08:12 PM | #11 | |
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Re: Rear LED 3rd Brake light....problem
Quote:
Made a direct connection from the stop switch.....all is now well. |
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