Resolved LED headlights not turning on/working

[Mikey_Dsm]

Hey guys, so I’m trying to install some Holley Retrobright LED’s and I ordered their switched ground wiring harness to help with install.

The part I’m stuck on is I wired it up all together using the wiring diagram. And connected everything how it should be. The H4 plugs to the LED headlights, and the last plug is using a H4 pinout swap adapter to plug into the factory headlight harness

Blue - red/white (low beam ground)
Red - red (high beam ground)
Black - red/blue (common power)

But the lights don’t turn on. I can hear the relays clicking when I turn the switch to activate the headlights.

I could use some pointers on what it could be just to make sure I didn’t plug in/wire anything wrong

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[CrackedDSM]

I had a similar issue as you did. It started out with my brights not working and then nothing worked. Check the leads going into the actual plug for the relays. Mine looked and felt tight initially but wasn’t crimped properly. I removed the terminal and redid it, and it fixed the issue. I am also attaching pics of how I have mine wired so you can double check yours for a sanity check.

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My wire colors are different slightly than yours but close enough you can match them up. Hope this helps, keep us updated either way!

 

[Mikey_Dsm]

Hey guys! I ended up finding out what the issue was. Turns out I had to swap some of the pins around for the headlight to actually function.

1st pic is how it came out the box
2nd pic is how I ended up going with for the headlight to function properly.

Hopefully this helps someone else out who goes with these LEDs and switched ground harness.

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[CrackedDSM]

Hey guys! I ended up finding out what the issue was. Turns out I had to swap some of the pins around for the headlight to actually function.

1st pic is how it came out the box
2nd pic is how I ended up going with for the headlight to function properly.

Hopefully this helps someone else out who goes with these LEDs and switched ground harness.

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Post up a night time picture of the cutoff and how they look. I'm curious their brightness level.

 

[Mikey_Dsm]

Post up a night time picture of the cutoff and how they look. I'm curious their brightness level.

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Night and day difference when compared to old headlights. I can actually see what’s in front of me now