Headlights Conversion: North American Reflectors to Matrix Projection 🔦 | Kia EV Forum
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Headlights Conversion: North American Reflectors to Matrix Projection 🔦

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100K views 336 replies 56 participants last post by  chopper  
#1 ·
As an early EV6 Adopter in Canada - and coming from the Stinger, I was and am still disappointed at the quality of these headlights in our $65K+ cars.

I have done research here about others folks in North America who have the same issue, and the intention behind this post is not too start another complaints thread, but more so find and gather the required information to potentially upgrade North American cars to projectors vs the dismal reflectors.

A couple of goals:
  1. Find out the variations between the pins and connection points between the two headlight variations,
  2. Discover whether they are plug and play or not (seen lots of speculation on here)
  3. If yes or no to the above, unravel how we North American's can potentially upgrade these terrible lights.

So far here is what I know
  • North American cars have a 14 pin connection into the headlight unit. I looked into the back of my headlight units and counted the number of wires.
  • I know about the TSB to aim the headlight higher, and have already done this as some cars (especially earlier units did not have this done by the dealer)
Will be continuously updating this with what I find to potentially find a solution.

If any of you European folks who have the matrix lights could help with any photos of your housings, pin array and potentially parts numbers it would be awesome.

PS I know there are a number of eBay listing with the matrix lights for sale, I've reached out to sellers to gather more information but they are either dormant or scams as they have yet to reply back to my messages in the last couple of months.

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#8 ·
Based on my research so far the answer is maybe.

The computer unit and software is what controls that sweeping indicator, and given we do not have those front and back, I think that would be a non issue.

In terms of the matrix array - from what I’ve seen the hardware is all there as the logic to turn on and off auto high beams relies on the camera mounted under the rear view mirrors, and the PIN array seems to also be 14 pins.

However we can’t be fully certain until someone from North America does this conversion and confirms.

It is beyond frustrating why Kia even did two different light housings - even if the Matrix array was not yet legal in North America. What they could have done is make all headlights projector and in North America limit the Matrix function to just turning on and off the high beam array.

The reason why I speculate they did this - is for future models of the EV6 and to position the projector headlights as potential incremental upgrade in the future. Another reason why I also think they are more likely plug and play.
 
#11 ·
Regrettably no. U.S. models have a totally different wiring harness that lacks the wiring and computer logic to operate the matrix lights, plus no oncoming light sensors to dynamically change the headlight pattern. On top of that, the Euro spec headlight assemblies cost over $1,000 each. Same is true with the sequential turn signals, totally different hardware, non compatible wiring and nonexistent control software make this only a dream. I was really disappointed to learn that these "features" were not present on U.S. spec cars, and even more disappointed that even if one were to buy all the correct hardware (which would cost thousands of dollars), you'd still be unable to make them function. Don't blame KIA for this, they would love to offer these features in the U.S. But the reality is, neither feature meets current U.S. safety regulations which haven't been revised for decades. Bottom line, it will take an act of Congress to get these features, so don't look for them anytime soon.
 
#12 ·
Thanks for resurfacing this and I did come across your note from before and a previous tread.

However until we confirm the pin array of the eurospean I don’t think we can be certain. I can share that over on Navar forums (Korean forums) there are folks who are also looking and have had some success.

to me it either means there is plug and play capability - but not for certain across markets which is one of my goals of trying to uncover this.

also for whatever reason - US based eBay seller have matrix lights - I cannot speculate on how or why they have these. And yes - they are confirmed us based sellers and not international sellers pseudo selling in the states.
 
#15 ·
I assume there was little wiggle room for unit profitability to make a non-matrix LED projector lamp for the NA market. Creating one could also have caused resource constraints during the pandemic for units that can use matrix units worldwide. I had a Genesis GV80 with units built for the NA market but they were the same projectors used worldwide, just sans the Matrix function. So Hyuanid can do it, but they didn't do it for NA EV6 units. I suspect that Matrix tech on its way to being allowed by law in the US factored into the decision not to make an NA-specific unit and wait for their global unit to become lawful for us in NA.
 
#18 ·
I think you are right - however they could have very easily (potentially even saved money) by using one housing across all markets and trims and just removing the matrix capability for North America. I speculate this is a planned obsolesce in a way, which is annoying especially for folks who were/are early adopters of the car.

Even the lowest trims of the Kia Forte have projectors...

PS as of Feb 16, 2023 - Matrix Headlights have been approved ✅ by NHTSA (source) in the United States.
Highly likely we will see the same but much slower approval from Transport Canada - our NHTSA equivalent.
 
#26 · (Edited)
#28 ·
Since I worked some magic on the rear sequential turn signals I looked at the matrix headlights for fun. Here are the differences between the matrix headlights and the US reflector headlights.

-Green = Same signal as US reflector headlights
-Yellow = Must add headlight leveling sensor/MCU (6 wire module)
-Blue = Easy to add signal
-Pink - Intelligent front lighting system (5 wires module, although does connect to CAN so it would be interesting to see how it reacts when connected to a car without it stock).

I'm not going to actually attack this project as I don't want to spend the money. Although if someone were to send me a pair of headlights I'll see what I can do, no promises. If I get it to work I'll send you everything needed back and document the process on here, if it doesn't I'll just send the headlights back and document why it didn't work on here.

It's totally possible that the majority of the extra wires would not be needed for basic operation. I don't know how the headlights would react without the intelligent front lighting system or leveling sensor, but basic high and low beams may work fine. Sequential turn signals and DRLs would work fine.

As I did with the sequential rear turn signals, the goal would be to have everything plug and play with custom harnesses.
you.
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#32 · (Edited)
Because I like a challenge... here are the part numbers of everything presumably required to accomplish this.

Left Headlamp (Korean market): 92101-CV100
Right Headlamp (Korean market): 92102-CV100

Below not required for basic functionality (just normal high/low beams)
AHLS ECU: 92190-CV000
IFS ECU: 92170-CV000
 
#33 ·
#34 · (Edited)
More info found today after digging around on my car...

The male connector and terminals on the headlamp housing are removable, the connector just twists out. So... if I cannot source the connectors, I could remove the terminals out of the US headlamp and transfer the connector over to the EU headlamp. The terminal part numbers between the US and EU headlamps are the same for the given signals. There are unused terminals on the US connector, not enough for auto leveling or IFS, but enough to get sequential turn signals working. You would just have to be very careful when re-pinning the EU headlamp.

This is still theoretical because I'm not sure how the EU headlamps would operate without leveling or IFS connected.
 
#36 · (Edited)
Here is a theoretical wiring diagram if you wanted the entire system to work. There would also be programming involved to enable IFS and AHLS. I did find the headlamp connectors in Korea, and found a cheap headlamp to test on, so within a month or two we should know if this actually works, and to what degree of install it requires (just headlamps vs headlamps/AHLS/IFS modules together). As of now I am planning on installing the IFS module under the drivers seat because it's easier than taking apart the dash to put it behind the AVNT.

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#52 ·
Here is a theoretical wiring diagram if you wanted the entire system to work. There would also be programming involved to enable IFS and AHLS. I did find the headlamp connectors in Korea, and found a cheap headlamp to test on, so within a month or two we should know if this actually works, and to what degree of install it requires (just headlamps vs headlamps/AHLS/IFS modules together). As of now I am planning on installing the IFS module under the drivers seat because it's easier than taking apart the dash to put it behind the AVNT.

View attachment 15420
All hail kyle11111 AKA the Tony Stark of EV6 world
 
#37 · (Edited)
Parts wise this is what is required to complete this project. This gives you full stock like install of Matrix Projectors with IFS and AHLS with the wiring digram I posted. Additional custom PCB would be needed for sequential turn lamps (same PCB I sell with my rear turn signal harness).

DescriptionPart NumberSource
Headlamp Left92101-CV100eBay.com
Headlamp Right92102-CV100eBay.com
Headlamp (EU) Connector (E-05)MG657201-5naver.com
AHLS Connector (PP11)936294-2aliexpress.com
IFS Connector (M55)MG655628aliexpress.com
Drivers Seat Harness (FS11) (F)CL6439-0010-6naver.com
Drivers Seat Harness (FS11) (M)CL6439-0011-9-070naver.com
AHLS ECU92190-CV000eBay.com (seller leedaeyeong)
IFS ECU92170-CV000sparekorea.com

Programming is required. See the video below. I used a Launch x431 Pro Elite programmer, others models may work.

AHLS ECU: (Parameter Setting and Zero Position Initial).
IFS ECU: ("Parameter Download")
Front View Camera (FVC): ("Variant Coding", Body Type: GT, HBA Option: None)

 
#38 · (Edited)
Got my first headlamp in... SEE EDIT BELOW. I also have the IFS ECU on its way now, so I'll continue testing. Low beams, high beams, turns (sequential and non-sequential), parking, and DRLs work perfectly fine just sitting on my desk without being hooked up to the vehicle. The low beam only draws 1.3 amps which is crazy. High beams draw 3.2 amps, with a total of 4.5 amps for both.

EDIT: High beams work without IFS. I was assuming that they are different circuits (so I was powering either one or the other). They must both be energized at the same time. Going over the wiring diagram of the leveling system, I noticed that only the low beam was tied into it, and the AHLS tech info states "AHLS only operates with the headlamps on". So I powered both. High beams work!

With this testing done. It is totally feasible to retrofit the matrix projectors with sequential turn lamps on a North American EV6. This is what's needed to make it work:
-Headlamps (duh)
-Headlamp connectors x2 (HERE, I used Korgou.com to purchase them and forward the package to the US).

I currently cannot source the male North American Headlamp connector. Which means an "intercept harness" of sorts isn't probable. BUT, the North American 14 pin connector and overseas 20 pin connector share the same terminals. While annoying, it is certainly feasible to "de-pin" the North American connector and insert those terminals into the overseas 20 pin connector. This satisfies my goal of not hacking up the wiring on my EV6. Without any extra work, you would get matrix projectors in the very basic sort. Adding one wire to the 20 pin connector gets you sequential turn lamps. Adding 5 wires to the 20 pin connector (plus adding the IFS ECU and AHLS ECU) would get the full system working, with the exception to figuring out what programming is essential to getting everything to work together. What I am building for my EV6 is a single harness that in one install adds IFS/AHLS. Not quite plug and play as I had hoped (due to issues sourcing that male connector that would make this project SIMPLE), but also not impossible. Bumper must be removed to replace the lights. I am still attempting to source the connector... see below. If anyone can help find this, it would take the install time down significantly. With that connector it would be 100% plug and play, with the exception of programming and 2 wire taps... one for VSS (speed) behind the cluster, and one on K-LINE at the OBDII connector.
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Low Beams
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Low Beams + High Beams
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#50 ·
I couldn't help but notice that the low beam's pattern is for a RHD market. The low part of the step is supposed to be toward the oncoming traffic in order to keep the glare down, while the high part helps illuminate pedestrians and hazards on the sidewalk side. I saw you say something about the headlight part number supposedly being the same for all markets, so maybe the shield inside of the low beam projector is reversable for LHD markets?