Custom Dynamics LED Passing Lamp Problem
Thread Starter
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2nd Gear
Joined: Mar 2018
Posts: 6
Likes: 1
From: Riverside, CA
Custom Dynamics LED Passing Lamp Problem
Hopefully, someone with a lot more mechanical knowledge than I will know what this is.
Recently, I installed a Custom Dynamics Trubeam LED halo headlamp & Hi/Lowbeam plug on my 2006 HD Roadking. I absolutely love its clean white light. Accordingly, I decided to purchase their 4.5 inch Trubeam Passing Lamps to complete my LED lighting upgrade project. After installing both LED passing lamps, I discovered the left Passing Lamp activated while the right Passing Lamp wouldnt work. Thinking the right lamp was bad, I swapped both lamps only to discover the left Lamp again worked while the right Lamp again failed to light. (Either Lamp works as long as it is in the left socket.) Thinking the right socket might be bad, I removed the LED Passing Lamp and reinstalled the stock incandescent stock bulb in the right socket and it works fine. I tried the other stock bulb in the right socket and that bulb works as well. So, Im now really confused.
The Custom Dynamic LED Trubeam Passing Lamps (either) work only in my left Passing Lamp Socket. My stock HD Passing Lamps work in either socket. I can mix lamps by putting the LED passing lamp in the left socket and stock lamp in the right socket and both work. If two Custom Dynamics Trubeam LED Passing Lamps are installed, only the left lamp will light and work in the left socket while the right remains dark. I removed all lamps from both sockets and installed either Trubeam LED Passing Lamp in the right socket while leaving the left socket vacant and neither will light & work while there.
If the right Passing Lamp connector was bad, why does it work with the stock HD Passing Lamp and not the LED lamp from Custom Dynamics? Its obviously delivering power to the stock bulb. Anyone know whats going on? Help!
Recently, I installed a Custom Dynamics Trubeam LED halo headlamp & Hi/Lowbeam plug on my 2006 HD Roadking. I absolutely love its clean white light. Accordingly, I decided to purchase their 4.5 inch Trubeam Passing Lamps to complete my LED lighting upgrade project. After installing both LED passing lamps, I discovered the left Passing Lamp activated while the right Passing Lamp wouldnt work. Thinking the right lamp was bad, I swapped both lamps only to discover the left Lamp again worked while the right Lamp again failed to light. (Either Lamp works as long as it is in the left socket.) Thinking the right socket might be bad, I removed the LED Passing Lamp and reinstalled the stock incandescent stock bulb in the right socket and it works fine. I tried the other stock bulb in the right socket and that bulb works as well. So, Im now really confused.
The Custom Dynamic LED Trubeam Passing Lamps (either) work only in my left Passing Lamp Socket. My stock HD Passing Lamps work in either socket. I can mix lamps by putting the LED passing lamp in the left socket and stock lamp in the right socket and both work. If two Custom Dynamics Trubeam LED Passing Lamps are installed, only the left lamp will light and work in the left socket while the right remains dark. I removed all lamps from both sockets and installed either Trubeam LED Passing Lamp in the right socket while leaving the left socket vacant and neither will light & work while there.
If the right Passing Lamp connector was bad, why does it work with the stock HD Passing Lamp and not the LED lamp from Custom Dynamics? Its obviously delivering power to the stock bulb. Anyone know whats going on? Help!
Elite HDF Member
Joined: May 2007
Posts: 4,452
Likes: 798
From: Bear Flag, lower end
Hopefully, someone with a lot more mechanical knowledge than I will know what this is.
Recently, I installed a Custom Dynamics Trubeam LED halo headlamp & Hi/Lowbeam plug on my 2006 HD Roadking. I absolutely love its clean white light. Accordingly, I decided to purchase their 4.5 inch Trubeam Passing Lamps to complete my LED lighting upgrade project. After installing both LED passing lamps, I discovered the left Passing Lamp activated while the right Passing Lamp wouldnt work. Thinking the right lamp was bad, I swapped both lamps only to discover the left Lamp again worked while the right Lamp again failed to light. (Either Lamp works as long as it is in the left socket.) Thinking the right socket might be bad, I removed the LED Passing Lamp and reinstalled the stock incandescent stock bulb in the right socket and it works fine. I tried the other stock bulb in the right socket and that bulb works as well. So, Im now really confused.
The Custom Dynamic LED Trubeam Passing Lamps (either) work only in my left Passing Lamp Socket. My stock HD Passing Lamps work in either socket. I can mix lamps by putting the LED passing lamp in the left socket and stock lamp in the right socket and both work. If two Custom Dynamics Trubeam LED Passing Lamps are installed, only the left lamp will light and work in the left socket while the right remains dark. I removed all lamps from both sockets and installed either Trubeam LED Passing Lamp in the right socket while leaving the left socket vacant and neither will light & work while there.
If the right Passing Lamp connector was bad, why does it work with the stock HD Passing Lamp and not the LED lamp from Custom Dynamics? Its obviously delivering power to the stock bulb. Anyone know whats going on? Help!
Recently, I installed a Custom Dynamics Trubeam LED halo headlamp & Hi/Lowbeam plug on my 2006 HD Roadking. I absolutely love its clean white light. Accordingly, I decided to purchase their 4.5 inch Trubeam Passing Lamps to complete my LED lighting upgrade project. After installing both LED passing lamps, I discovered the left Passing Lamp activated while the right Passing Lamp wouldnt work. Thinking the right lamp was bad, I swapped both lamps only to discover the left Lamp again worked while the right Lamp again failed to light. (Either Lamp works as long as it is in the left socket.) Thinking the right socket might be bad, I removed the LED Passing Lamp and reinstalled the stock incandescent stock bulb in the right socket and it works fine. I tried the other stock bulb in the right socket and that bulb works as well. So, Im now really confused.
The Custom Dynamic LED Trubeam Passing Lamps (either) work only in my left Passing Lamp Socket. My stock HD Passing Lamps work in either socket. I can mix lamps by putting the LED passing lamp in the left socket and stock lamp in the right socket and both work. If two Custom Dynamics Trubeam LED Passing Lamps are installed, only the left lamp will light and work in the left socket while the right remains dark. I removed all lamps from both sockets and installed either Trubeam LED Passing Lamp in the right socket while leaving the left socket vacant and neither will light & work while there.
If the right Passing Lamp connector was bad, why does it work with the stock HD Passing Lamp and not the LED lamp from Custom Dynamics? Its obviously delivering power to the stock bulb. Anyone know whats going on? Help!
Stellar HDF Member
Joined: Nov 2007
Posts: 3,364
Likes: 110
From: Mesa, Az.
LED's are polarity sensitive while filament bulbs are not. Current can only pass through in one direction (diode), try reversing the wires on the one that doesn't work.
Last edited by joe.1955; Mar 24, 2018 at 09:24 AM.
Road Master
Joined: Apr 2009
Posts: 754
Likes: 24
From: Southern Maine
I can guarantee you that you have a polarity problem with the socket that's not working with the LED. Switch the wires and you'll be OK. You don't need equalizers on any lights unless they're running flasher relays (turn signals).
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Thread Starter
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2nd Gear
Joined: Mar 2018
Posts: 6
Likes: 1
From: Riverside, CA
It was a polarity issue guys. Harley had reversed the wires in the right side Passing Lamp Connector at the factory. It never mattered using the stock incandescent lamps. Now that theyre working, WOW....What a difference!
Thanks to each of you for sharing your thoughts and ideas.
Thanks to each of you for sharing your thoughts and ideas.