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LED headlight strips as DRL

kaigoss69

Hasn't posted much yet...
71
19
8
JAX
Genesis Model Type
2G Genesis Sedan (2015-2016)
Many thanks to Danemania1 for putting up the diy and the plans for the relay switch and connections to the existing wiring. I just finished this conversion and it worked out great. The whole job took me around 6-7 hours and I spent most of the time on wiring as I suck at this kind of thing and I went extra slow not to mess anything up. I had a friend build the relay switch per danemania1's diagram and it works exactly as he said it would. I still cannot believe the car did not come like this but now I am so glad I did it. Regarding the procedure outlined here, I also was able to do this without removing the headlights. It's a tight squeeze in there to get to the connector inside the headlight housing, but it ended up saving me a bunch of time I think. I had a pretty difficult time inserting the wires into the connector, to add the 12V wire for the LED strip. I first tried to solder the end of the wire, but it ended up too thick and I wasn't able to make a connection. Perhaps the wire I used was a little too thick (16 gauge I think) and I finally had success inserting the bare wire only (no solder). On the other side I had more trouble and ended up using the wire from a paper clip (with a slight bend in it) which sat firmly inside the connector and made contact. This is what I should have done on the other side as I think it has less chance of coming out. I did not zip tie the new wire to the existing wires as I was afraid this would pull it loose. Instead, I superglued the new wire to the existing ones. So far it is holding. I will also say that stripping the rear blinker wires near the fuse panel is a little like brain surgery on a flea. The wires are thin and seemingly fragile to begin with, and stripping the insulation away is a little nerve-wrecking to say the least. Below is the obligatory "after" picture. Happy camper here!

IMG_1723.JPG
 

miwa

SUSTAINING MEMBER
23
8
3
Genesis Model Type
2G Genesis Sedan (2015-2016)
So I tried a couple different switchback relays but couldn't get the results I wanted. one gave me hyperflash and I added a resistor but it made my LED strip flicker.
so I made my own and they work great. they also make it so i dont need to run the 12v constant power. and I also don't need the relays as the switchback takes their place. it keeps everything working like factory. if the front blinker bulb blows the car will hyperflash to let you know. the way its wired with the harnesses I used if something ever goes wrong with the switchbacks i just unplug it and then connect the 2 connectors and its back to factory.
here is a diagram to build one and what it wires to.
View attachment 13241

here is a diagram of how to wire it into the car

View attachment 13242
Hi @danemania1, I'm having a little trouble following this update with your custom switchbacks and correlating it with the original instructions. The harness images that you used here doesn't look like the original two connector harnesses you used. I'd imagine this is a different harness that you'd have to buy separately?

@kaigoss69 , can you please post some pics of what your friend built and how it links up? I think I can handle the switchback build part, but I got a little lost following how it hooks up with the rest of the system.

thanks!
 
Last edited:

kaigoss69

Hasn't posted much yet...
71
19
8
JAX
Genesis Model Type
2G Genesis Sedan (2015-2016)
Hi @miva,

unfortunately I did not get any pictures but it is basically a box with the two OEM wiring connectors on the ends, just like shown in the diagram by Danemania1 on page 2.

Not sure why but the switchback circuitry is not 100% compatible with my car because I get turn signal hyperlinking about every 3rd to 5th application of each blinker. After the hyperlink, the circuit does not switch back to DRL and I need to engage the blinker again to turn on the DRL on that side.

Hi @danemania1, I'm having a little trouble following this update with your custom switchbacks and correlating it with the original instructions. The harness images that you used here doesn't look like the original two connector harnesses you used. I'd imagine this is a different harness that you'd have to buy separately?

@kaigoss69 , can you please post some pics of what your friend built and how it links up? I think I can handle the switchback build part, but I got a little lost following how it hooks up with the rest of the system.

thanks!
 

miwa

SUSTAINING MEMBER
23
8
3
Genesis Model Type
2G Genesis Sedan (2015-2016)
@kaigoss69, thanks for the reply and the update. I'll have to rethink about doing this if you're having inconsistency issues. Did you ever change out the blinker bulbs for LEDs?
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sidewinder1

Getting familiar with the group...
116
24
18
Tampa, FL
Genesis Model Type
2G Genesis Sedan (2015-2016)
i'm looking to only disable the amber DRL while maintaining the turn signal functionality of the amber bulbs...would cutting pin 12 for the DRL on the wiring harness accomplish this?
 

CarlitoGR

Hasn't posted much yet...
SUSTAINING MEMBER
69
21
8
Maryland
Genesis Model Type
2G Genesis Sedan (2015-2016)
i'm looking to only disable the amber DRL while maintaining the turn signal functionality of the amber bulbs...would cutting pin 12 for the DRL on the wiring harness accomplish this?
What year car do you have? on the 2015 pin 12 does not exist. I think on the 2016, the pin 12 would exist for the dedicated DRL LEDs. To do what your saying, you would need to enable Dedicated DRL in the Body Control Module. I haven't figured out how to modify Body Control Module parameters yet.
 

sidewinder1

Getting familiar with the group...
116
24
18
Tampa, FL
Genesis Model Type
2G Genesis Sedan (2015-2016)
What year car do you have? on the 2015 pin 12 does not exist. I think on the 2016, the pin 12 would exist for the dedicated DRL LEDs. To do what your saying, you would need to enable Dedicated DRL in the Body Control Module. I haven't figured out how to modify Body Control Module parameters yet.
i have the 15 so looks like i'm out of options...i got a led in there and afraid of burning them out prematurely by using as drl since i already have fog leds that are always on.
 

richysh

New member
8
2
3
Genesis Model Type
2G Genesis Sedan (2015-2016)
Those of you who have done this, did anyone either save those pictures or got your own pictures to share? Or can someone make me one? Or help me get it done? I live in georgia so if anyone lives near me and have done this project, please help
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kocyk123

Registered Member
217
128
43
Gilberts, IL
Genesis Model Type
2G Genesis Sedan (2015-2016)
I starter the process today in the evening and fished ethernet cable through the firewall (Ethernet cable has 4 22 gauge cables inside so I will have one spare. Might not be the best way to do it but I am doing it like that). Took me about 35 mins to do it. Hopefully that was the hardest step. I have skinny hands and can easily reach the DRL wiring without headlight and bumper removal. I will take pictures and create guide for “dummies” like me if anyone else will try this project. I should have everything hooked up by tomorrow and tutorial by the end of the week.
 

gnweke

New member
3
0
1
Genesis Model Type
No Genesis Yet!
I starter the process today in the evening and fished ethernet cable through the firewall (Ethernet cable has 4 22 gauge cables inside so I will have one spare. Might not be the best way to do it but I am doing it like that). Took me about 35 mins to do it. Hopefully that was the hardest step. I have skinny hands and can easily reach the DRL wiring without headlight and bumper removal. I will take pictures and create guide for “dummies” like me if anyone else will try this project. I should have everything hooked up by tomorrow and tutorial by the end of the week.
If you could make a video that'd be very much appreciated and amazing.
 

kocyk123

Registered Member
217
128
43
Gilberts, IL
Genesis Model Type
2G Genesis Sedan (2015-2016)
It will be difficult to do a video but I will do as many pics and explanations as I can so the video won't be necessary. I was thinking on how am I going to connect to the connector inside the headlights and got an idea of taking a computer at work apart and using one of the connectors. In my case, I used the computer's power button cable lol. I removed the cables from the plastic adapter (like in the picture) and will use two of the wires to plug in to the headlights. It will be plug and play so I won't even have to disconnect the DRL cable. This will save A LOT of time.

20648
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kaigoss69

Hasn't posted much yet...
71
19
8
JAX
Genesis Model Type
2G Genesis Sedan (2015-2016)
I have intermittent (about 30 - 50% of the time) hyperblinking after installing my custom switchback circuits. The blinker bulbs themselves are the standard incandescent ones from Autozone. Question, should I add a resistor in-line with the blinker bulbs? If yes, what size??? Thanks!
 

kaigoss69

Hasn't posted much yet...
71
19
8
JAX
Genesis Model Type
2G Genesis Sedan (2015-2016)
How exactly did you wire up your DRLs?
Hi, thank for your reply. Please see post #41 for details. I am thinking the switchback circuit is lowering the resistance just enough that I get the intermittent hyperblinking, but I'm certainly no expert...
______________________________
 

kocyk123

Registered Member
217
128
43
Gilberts, IL
Genesis Model Type
2G Genesis Sedan (2015-2016)
I looked at post #41 but it does not say how you handled your old DRL wires. What I would recommend is to use Morimoto Switchbacks as they are confirmed to work with no problem, or use 5 PIN relays like I did with my installation (see the link in my signature). I did mine couple of months ago and had no problems at all. However, the LED strip does not turn off when the blinker goes on (which was what I wanted).
 

kaigoss69

Hasn't posted much yet...
71
19
8
JAX
Genesis Model Type
2G Genesis Sedan (2015-2016)
I looked at post #41 but it does not say how you handled your old DRL wires. What I would recommend is to use Morimoto Switchbacks as they are confirmed to work with no problem, or use 5 PIN relays like I did with my installation (see the link in my signature). I did mine couple of months ago and had no problems at all. However, the LED strip does not turn off when the blinker goes on (which was what I wanted).
I had the circuits built and installed per post #33.
 

kocyk123

Registered Member
217
128
43
Gilberts, IL
Genesis Model Type
2G Genesis Sedan (2015-2016)
I see. So you didn't use any relays right? In that case I will not be much of a help as I am not familiar with custom relays.
 
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