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post #1 of 8 Old 07-27-2012, 09:58 PM Thread Starter
zeds_dead
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Tail Light Question

So my right tail light wont light when I turn on my headlights but it will illuminate when i press on the brake or hit the turn signal. I have LED Tails so I tried to plug in the stock one but same thing happens. Any suggestions?


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post #2 of 8 Old 07-27-2012, 10:23 PM
Sohcvtec1995
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Get a meter and make sure your getting signal. If not start working backwards.
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post #3 of 8 Old 07-27-2012, 10:32 PM
trax95008
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Keep in mind it's a dual filament bulb. The running light is separate than the brake/turn. Start by cleaning the contacts in the socket, then use a meter to check for voltage, check fuses. There's also the chance that both the bulbs are bad. Try swapping from the other side
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post #4 of 8 Old 07-28-2012, 10:02 AM
JBert
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Quote:
Originally Posted by trax95008
Keep in mind it's a dual filament bulb. The running light is separate than the brake/turn. Start by cleaning the contacts in the socket, then use a meter to check for voltage, check fuses. There's also the chance that both the bulbs are bad. Try swapping from the other side
For LED setup?

-Justin-
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post #5 of 8 Old 07-28-2012, 02:55 PM
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Is there anything else that doesn't work?

The right tail light is on IPM fuse 10, but I'd expect the right front parking lamp to be out as well if the fuse is the problem.

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post #6 of 8 Old 07-28-2012, 03:11 PM
trax95008
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Quote:
Originally Posted by JBert

For LED setup?
The socket has 3 wires. A ground, a +12v running, and a +12v brake. It doesn't matter if the bulb is incandescent or LED. One incoming wire tells one filament to light, and another wire tells the other, more brighter filament to light. The same two wires tell the LED to come on at a certain brightness, and the other wire tells the LED to get brighter. The principals are the same and require the same troubleshooting steps regardless of the bulb technology
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post #7 of 8 Old 07-28-2012, 03:44 PM
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^ +1

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And some past Durangos
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post #8 of 8 Old 07-28-2012, 04:16 PM
JBert
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Quote:
Originally Posted by trax95008

The socket has 3 wires. A ground, a +12v running, and a +12v brake. It doesn't matter if the bulb is incandescent or LED. One incoming wire tells one filament to light, and another wire tells the other, more brighter filament to light. The same two wires tell the LED to come on at a certain brightness, and the other wire tells the LED to get brighter. The principals are the same and require the same troubleshooting steps regardless of the bulb technology
Thanks for the explanation! I didn't realize that it worked like that.

-Justin-
1988 YJ, 2005 WK
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