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LED reverse lights dim (All gears)

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Old Sep 20, 2013 | 12:19 AM
  #1  
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Default LED reverse lights dim (All gears)

I've seen a few instances of this happening before, but don't recall if anyone has actually found the solution to this problem:

Customer has LED reverse lights that are lit dim in all gears, but come on full-power in reverse.

Personally, I think it has to do with the reverse switch, but I can't verify. Any ideas?
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Old Sep 20, 2013 | 01:00 AM
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i had that issue before.

what i found is that while a stock fillament bulb won't have that problem, the LED lights will draw power and be dimly lit even when "off".

i went to my local pep boys and added a sealed fillament bulb similar to this:



I wired the sealed bulb inline using the reverse light wiring. i then tucked it away in the rear bumper area when i installed my custom LED reverse lights.



the inline filament bulb will prevent the LED bulbs from turning on when they are supposed to be off.

now the LED reverse lights only turn on when reverse is activated.
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Old Sep 20, 2013 | 03:38 AM
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I have the same problem in my 99
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Old Sep 20, 2013 | 05:33 AM
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Mine had the same issue also.After a lot of checking I found that one of the contacts on the bulb wasn't getting a proper connection.Took a small file and smoothed the contacts until they were even with each other and reinstalled the bulb.No problems since!
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Old Sep 20, 2013 | 06:04 AM
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I had the same issue 99 coupe. My solution? Paid the bulbs forward last Christmas in the annual pay it forward thread.
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Old Sep 20, 2013 | 07:28 AM
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I have LED taillights, backup lights (from RadioFlyer), ten - 2-ft & 3 ft LED Oznium strips, 5 interior LED single bulbs, LED hood light array, Muth LED signal mirrors, LED arrays in rearview mirror and a by-pass harness.

The only one that stays on dim is the hood light? It is also starting to blow out LEDs in the array. I have seen others report the same issue with hood light LEDs.
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Old Sep 20, 2013 | 09:10 AM
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Originally Posted by jamieo
Mine had the same issue also.After a lot of checking I found that one of the contacts on the bulb wasn't getting a proper connection.Took a small file and smoothed the contacts until they were even with each other and reinstalled the bulb.No problems since!
Hmm good idea.

Originally Posted by Choreo
I have LED taillights, backup lights (from RadioFlyer), ten - 2-ft & 3 ft LED Oznium strips, 5 interior LED single bulbs, LED hood light array, Muth LED signal mirrors, LED arrays in rearview mirror and a by-pass harness.

The only one that stays on dim is the hood light? It is also starting to blow out LEDs in the array. I have seen others report the same issue with hood light LEDs.
The hood light is the only one that seems to do this on every car I've tested.
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Old Sep 20, 2013 | 09:15 AM
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George,
I thought you told me a while ago to put a resister inline with the reverse lights. I did the regular bulb thing too, but I just removed the bulbs all together and just use a normal 1157.
Good luck
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Old Sep 20, 2013 | 09:46 AM
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Originally Posted by nickwfd92
George,
I thought you told me a while ago to put a resister inline with the reverse lights. I did the regular bulb thing too, but I just removed the bulbs all together and just use a normal 1157.
Good luck
that will work, but I'm still curious why the reverse light issue has occurred on only 2 cars with the 20w LED bulbs.
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Old Sep 20, 2013 | 10:19 AM
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There was a thread on this issue a couple years back, I hope it wasn't in an LED thread, but anyways if I recall there is minimal voltage in both the underwood light and the back up lights. I'm at work and can't search for it. I also don't recall there being a solution other than adding a resistor or extra bulb inline. Both unacceptable solutions to me.

It is a common problem.
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Old Sep 20, 2013 | 10:42 AM
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Originally Posted by Camjamsdad
There was a thread on this issue a couple years back, I hope it wasn't in an LED thread, but anyways if I recall there is minimal voltage in both the underwood light and the back up lights. I'm at work and can't search for it. I also don't recall there being a solution other than adding a resistor or extra bulb inline. Both unacceptable solutions to me.

It is a common problem.
Agreed. I feel this is a band-aid fix.
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Old Sep 20, 2013 | 03:06 PM
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No clue why it happens. My 99 didn't do it, but several customers over the years reported the problem.

Load resistors are fine for the rear. Most people don't stay in reverse long enough for them to even get hot.
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Old Sep 20, 2013 | 04:32 PM
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Originally Posted by Camjamsdad
I had the same issue 99 coupe. My solution? Paid the bulbs forward last Christmas in the annual pay it forward thread.
Pretty sure they are the ones I got on here!!
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Old Sep 20, 2013 | 04:38 PM
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Originally Posted by Camjamsdad
There was a thread on this issue a couple years back, I hope it wasn't in an LED thread, but anyways if I recall there is minimal voltage in both the underwood light and the back up lights. I'm at work and can't search for it. I also don't recall there being a solution other than adding a resistor or extra bulb inline. Both unacceptable solutions to me.

It is a common problem.


When you come up with the "acceptable" be sure to let us know.
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Old Sep 20, 2013 | 04:38 PM
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Originally Posted by JW@JWMotoring.com
No clue why it happens. My 99 didn't do it, but several customers over the years reported the problem.

Load resistors are fine for the rear. Most people don't stay in reverse long enough for them to even get hot.
I agree with that, but even I don't want to start cutting the factory wiring. Plug n play would be ok.
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Old Sep 20, 2013 | 05:08 PM
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Originally Posted by jamieo
Pretty sure they are the ones I got on here!!
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Originally Posted by Camjamsdad View Post
After digging around I found a pair of rear led back up light bulbs I can offer up. I have a pile of stock parts, but so does everybody else. I'll see what else I can find.

Happy New Year
I need to replace one of mine and could use the led lights if they are still available.Will gladly pay shipping!

It sure was you. I have to ask, Did they work for you? I paid a vendor here $55. for the pair I believe. I knew when I bought them there was a potential of experiencing the dim effect so I don't blame the vendor. I have all LEDs except the back ups and since The Radioflyer is on it maybe the problem will be resolved.
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Old Sep 21, 2013 | 05:18 AM
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They work fine after I fixed the issue I described in post #4.
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Old Sep 23, 2013 | 09:59 AM
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Mine do it when the lights are on. Just a dim glow on the rear. But when in reverse, BOOM! Full light. Kind of dig it that its on....
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Old Nov 1, 2017 | 10:43 AM
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Hate to bring back an old thread, but is there an updated product that fixes this? I'm about to go back to a halogen bulb because I don't want to splice one in addition to the LED's. I'm seeing a lot of different vendors for reverse LED's, and I want to make sure I get some that won't have this issue where they remain dim all the time.

Any suggestions?
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