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LED Headlight Installation

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Old Jan 3, 2017 | 11:36 PM
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Joe1988vette's Avatar
Joe1988vette
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Default LED Headlight Installation

I tried installing LED fog lights and headlights on my 1988, 35th Anniverssary and I'm having some challenges. I installed the LED's on the fog lights and they worked fine with the halogen head lights. When I installed the LED head lights, I had all types of problems. The high beam would not work with the fog lights on. The high beam only worked with fog lights off. Then when I would turn the fog lights on, the headlights would turn on.
Does anyone have any suggestions on what I should do to get my LED headlights and fog lights to work together?
Thanks in advance,
Joe
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Old Jan 4, 2017 | 12:48 AM
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Did or do they have load resistors? LEDs use allot less power and you often have to "fool" the system so a similar amount of current draw happens to make things work right.
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Old Jan 4, 2017 | 02:44 AM
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Originally Posted by Joe1988vette
I tried installing LED fog lights and headlights on my 1988, 35th Anniverssary and I'm having some challenges. I installed the LED's on the fog lights and they worked fine with the halogen head lights. When I installed the LED head lights, I had all types of problems. The high beam would not work with the fog lights on. The high beam only worked with fog lights off. Then when I would turn the fog lights on, the headlights would turn on.
Does anyone have any suggestions on what I should do to get my LED headlights and fog lights to work together?
Thanks in advance,
Joe
The problem happens because some years used the high beam filament to ground the fog lights. Running a separate ground will solve that problem.

These articles give more info on this subject:

https://www.corvetteforum.com/forums...eadlights.html
https://www.corvetteforum.com/forums...-solution.html
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Old Jan 4, 2017 | 07:24 PM
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Originally Posted by Buick350X
Did or do they have load resistors? LEDs use allot less power and you often have to "fool" the system so a similar amount of current draw happens to make things work right.
They did not come with a resistor. Got a fix from another member and they are all working properly now.
Thanks for the information...
Greatly appreciated!
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Old Jan 4, 2017 | 07:31 PM
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Originally Posted by Cliff Harris
The problem happens because some years used the high beam filament to ground the fog lights. Running a separate ground will solve that problem.

These articles give more info on this subject:

https://www.corvetteforum.com/forums...eadlights.html
https://www.corvetteforum.com/forums...-solution.html
Hey Cliff,
Reviewed your links and did exactly as they recommend. Everything is working properly now. Wow, what a difference in lightning.
Thanks for the great information.
It is greatly appreciated!
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Old Jan 4, 2017 | 07:59 PM
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Buick350X
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Originally Posted by Joe1988vette
They did not come with a resistor. Got a fix from another member and they are all working properly now.
Thanks for the information...
Greatly appreciated!
topic comes up allot on motorcycle forum with new LED turns signals n such don't "work"
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