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MK7.5 OEM LED Tails

poi217

New member
Location
Atlanta, GA
If you put it in reverse, does the dynamic function work then? Sounds for me like Inner-Left and Inner-Right harness is swapped since reverse lights are permanently on. Does the reverse camera work at all?

Yes, reverse camera works. Just reverse light stays on all the time and sequential turn signals don't work (it's just solid turn lights).
 

poi217

New member
Location
Atlanta, GA
Just want to share my experience purchasing mk7.5 euro tail lights from USP Motorsports. I must be very unlucky.

Purchased the set on 11/17/23. Delivered 11/25. I open it to find both corners of the outers are cracked. I inform USP 12/3 of the defect.

They say I can keep the harness and just return the tail lights and they'll ship out brand new set. Replacement delivered 12/16.

12/19 Tail lights installed and coding instructions were followed, but sweep signals would not work and reverse lights stayed on at all times.

Couldn't figure it out so took car to Eurofed on 1/3/24. Turns out USP sent the wrong harness. I reach out to them again; They ship out correct harness 1/9, but their processing team wrote the wrong address so package is lost. Contacted USP again and they shipped out another harness. Finally got everything to work!
 
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ksurl

Go Kart Champion
Location
Socal
Car(s)
18 GTI SE DSG
Ouch 2 months. Could have had a set from e-acca and a zero815 harness by now. Also the install is not that hard to diy.
 

Sav_if

New member
Location
Ukraine
Car(s)
Golf 7.5
Вітаю.
Шановні колеги, прошу вашої допомоги.
Маю Golf 7.5 2019 року з Америки.
Задні світлодіодні ліхтарі, які я модифікував для Європи з жовтим поворотником.
При цьому проводка і мікросхема штатні, 4 контакти.
Щоб змусити їх працювати, я замінив контакт 2 на контакт 4 і закодував відповідним чином.
Після цього права нога працює нормально, а ліва ні.
При одночасному включенні гальмівного сигналу + лівого поворотника або аварійки сигнал гальмування блимає разом з поворотом.
Це все відбувається тільки лівою ногою, права працює чудово.
Перевірив проводку, поміняв фари, нічого не допоможе.
Проблема тільки в кодуванні
2-й стовпець мав кодування, а 3-й мав НОВЕ кодування
Я прошу вашої допомоги!


1234
Leuchte20 BR LA71 - стоп злива
Останній тип 203543загальний світлодіод
Lampendefektbitposition13
Попередній байт DTC-DFCC3D
Ліхтфункція А 20Bremslicht
Ліхтфункція B 20Blinken посилається на Helllphaseнічний актив
Dimmwert AB100127
Lichtansteuerung HD AB 20завжди
Ліхтфункція С 20Блінкен посилається на Dunkelphaseнічний актив
Ліхтфункція D 20нічний актив
Dimmwert CD0
Напрямок потім CD 20мінімізувати
Ліхтфункція E 20нічний актив
Ліхтфункція F 20нічний актив
Dimmwert EF 200
Напрямок потімвання EF 20максимізувати
Ліхтфункція G 20нічний актив
Функція світла H 20нічний актив
Dimmwert GH 200
Напрямок потімвання GH 20максимізувати
Leuchte21 BR RC8 - стоп-зправа
Останній тип 213543загальний світлодіод
Lampendefektbitposition23
Попередній байт DTC-DFCC3E
Lichtfunktion A 21Bremslicht
Lichtfunktion B 21Blinken rechts Hellphaseнічний актив
Dimmwert AB100127
Lichtansteuerung HD AB 21завжди
Lichtfunktion C 21Blinken rechts Dunkelphaseнічний актив
Lichtfunktion D 21нічний актив
Dimmwert CD0
Напрямок потім CD 21мінімізувати
Ліхтфункція E 21нічний актив
Ліхтфункція F 21нічний актив
Dimmwert EF 210
Напрямок заливки EF 21максимізувати
Lichtfunktion G 21нічний актив
Функція світла H 21нічний актив
Dimmwert GH 210
Напрямок дослідження GH 21максимізувати
США 2019
Leuchte23SL HLC10 - лівий габарит на дверях
Останній тип 2343
Lampendefektbitposition 23А
Попередній байт DTC-DFCC29
Lichtfunktion A 23Standlicht allgemein (Schlusslicht, Positionslicht, Begrenzungslicht)Blinken посилається на Helllphaseпрацює при загорянні лівого поворотника
Lichtfunktion B 23нічний актив
Dimmwert AB127
Lichtansteuerung HD AB 23завжди
Lichtfunktion C 23нічний актив
Ліхтфункція D 23нічний актив
Dimmwert CD0
Напрямок потім CD 23максимізувати
Ліхтфункція E 23нічний актив
Ліхтфункція F 23нічний актив
Dimmwert EF 230
Напрямок дослідження EF 23максимізувати
Lichtfunktion G 23нічний актив
Функція світла H 23нічний актив
Dimmwert GH 230
Напрямок дослідження GH 23максимізувати
США 2019
Leuchte24SL HRA65 - правий габарит на дверях
Останній тип 2443
Lampendefektbitposition 24
Попередній байт DTC-DFCC
Lichtfunktion A 24Standlicht allgemein (Schlusslicht, Positionslicht, Begrenzungslicht)Blinken посилається на Helllphaseпрацює при загорянні лівого поворотника
Lichtfunktion B 24нічний актив
Dimmwert AB127
Lichtansteuerung HD AB 24завжди
Lichtfunktion C 24нічний актив
Ліхтфункція D 24нічний актив
Dimmwert CD0
Напрямок потім CD 24максимізувати
Ліхтфункція E 24нічний актив
Ліхтфункція F 24нічний актив
Dimmwert EF 240
Напрямок заливки EF 24максимізувати
Lichtfunktion G 24нічний актив
Функція світла H 24нічний актив
Dimmwert GH 240
Напрямок дослідження GH 24максимізувати
 

ZERO815

Autocross Champion
Location
Köln Germany
Car(s)
2017 GTI SE DSG
VW uses "Blinken links Hellphase" (=Power ON during turn signal) and "Blinken links Dunkelphase" (=power OFF during turn signal) to get the alternating turn signal mode. Sounds like the brake light is still acting as a "turn signal", but only in power OFF mode. Please check the following line in your coding. I have seen before that coding changes are shown in OBD11 but the BCM never really accepted them. You might want to re-do the coding for Lichtfunktion C20. Just select "not active" again, and write it again.
Ліхтфункція С 20Блінкен посилається на Dunkelphaseнічний актив
 

Sav_if

New member
Location
Ukraine
Car(s)
Golf 7.5
VW використовує «Blinken links Helllphase» (=Живлення ввімкнено під час сигналу повороту) і «Blinken links Dunkelphase» (=живлення ВИМКНЕНО під час сигналу повороту), щоб отримати режим змінного сигналу повороту. Звучить так, ніби стоп-сигнал все ще діє як «сигнал повороту», але лише в режимі ВИМКНЕНО. Будь ласка, перевірте наступний рядок у вашому кодуванні. Раніше я бачив, що зміни кодування відображаються в OBD11, але BCM ніколи їх не приймав. Ви можете повторно виконати кодування для Lichtfunktion C20. Просто знову виберіть «не активний» і напишіть його ще раз.
Ліхтфункція С 20Блінкен посилається на Dunkelphaseнічний актив
Дякую, вже пробував це зробити, але спробую ще.
Оскільки ви маєте рацію, здається, що я написав "not active", а блок все ще бачить функцію Blinken rechts Dunkelphase.

Чи можете ви спробувати зареєструвати Bremslicht у Lichtfunktion C 21?
 

ZERO815

Autocross Champion
Location
Köln Germany
Car(s)
2017 GTI SE DSG
You could set "Bremslicht" in C20, but w/ Dimmwert CD20 being 0 you won't have a brake light at all most likely.
 

mustard_tiger

New member
Location
Pittsburgh, PA
Car(s)
2019 Golf R 6MT
Hey guys! I recently picked up a harness from an ebay seller in china, as I didn't feel like paying 200 dollars for the ShopDAP one. They came with very very basic instructions in Chinese and I'm just trying to figure out which pin each wire needs to go to. I have a decent understanding of everything up to this point. I've looked through several dozen pages of this thread and as it's 238 pages long, felt like it may be better asked here:

Does anybody have a simple diagram showing the connections between all 4 lights, specifically showing which pins correspond to which wires?

Many thanks in advance, will keep looking in the meantime.

Editing to add pictures/explanations:


These are the components that were sent. I really want to be sure of the pin positions before installing as I would like to avoid ruining the header. I've gathered this info through the Chinese instructions using Google Translate. Bonus points and my eternal gratitude to anybody that can help me make sense of these instructions and prevent me from regretting going cheap on these! I would have liked to go with ZERO815's harness, but he's not currently producing them.

Instructions:
unnamed.jpg

Right Outer: Two main headers only:

unnamed4.jpg


Right Inner: Two main headers, two single wires with ends to insert into (I'm assuming) the right outer harness. Final wire leads to male 3-pin header:
unnamed3.jpg

Left inner: Two main headers, single wire with pin, two wires with male/female 3-pin headers, respectively:

unnamed5.jpg

Left outer: Two main headers, female 3-pin header, single wire with pin:

unnamed2.jpg

I'm trying to figure out what they mean by "T8/2" in the instructions. I do see that pin 2 on the left and right outer headers are free, so that's my best guess. Assuming that the left inner light wire runs to the left outer pin 2, right inner light wire runs to the outer right pin 2.

After that, this is my understanding:

-1 black/white wire coming from the left outer harness pin 1 (??)
-1 female 3-pin header also coming from the left outer harness pin 1 (connects to male 3 pin header on left inner unit pin 1)

-1 male 3-pin header coming from the left inner harness pin 1 (guessing this connects to the left outer female 3-pin header)
-1 female 3-pin header also coming from the left inner harness pin 1 (guessing this connects to the right inner male 3-pin header)

-1 male 3-pin header coming from the right inner harness pin 1 (guessing this connects to the left inner female 3-pin header)
-1 black/white wire coming from the right inner harness (??)

After searching all day, the two remaining items above still elude me. For the right side, I believe the wire coming from the inner pin 1 should feed to pin 1 of the right outer side. Does anybody know where the loose wire coming from pin 1 of the left outer harness should go? The pin 1 connection seems to be the common connection on all 4 lights that connects to the BCM. I've seen a diagram that mentions this connection should go to the BCM connector C pin 6. Do I really need to run this all the way up to the front of the car? How do other harnesses avoid the need to do this?


Edit: contacted the seller and he instructed me that I don't need to do anything with the pin 1 black wire coming from the left outer light. I'm not sure how that makes sense.
 
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ZERO815

Autocross Champion
Location
Köln Germany
Car(s)
2017 GTI SE DSG
As far as I can see on your pictures the adapter harness is wired like this:
1710141259344.png

Unfortunately it won't work without modifications on a NA MK7.5:
- Cavity 8 (=turn signal on ROW cars) on Outer-Left and Outer-Right is not populated on NA MK7.5s. NA MK7.5s use the brake lights as turn signals.
- BCM C6 (the black/white wire from Outer-Left) is already used for the little red side markers.

And now? There is a way to use the harness on your car, but it takes some slight modifications to the harness. Furthermore you have to connect the black/white wire from Outer-Left to the 12V outlet in the trunk (make sure you switch over the outlet fuse to permanent 12V). If you don't connect the the wire to 12V you won't have rolling turn signals. To finish the project you have to do some coding as well. Here is how the modified harness should look like:

1710141938013.png
 

mustard_tiger

New member
Location
Pittsburgh, PA
Car(s)
2019 Golf R 6MT
I really appreciate the info ZERO815, your input in the past few years has been a huge help throughout this processs. Going to try to modify this myself, but ultimately got a refund from the seller due to the incompatibility. If I can't figure it out myself I'll just go with the ShopDAP harness.

Thanks again!
 

mustard_tiger

New member
Location
Pittsburgh, PA
Car(s)
2019 Golf R 6MT
Update in case anybody runs into this in the future: DON'T GO CHEAP. I really thought that these would all be the same, and I was wrong. The eBay version was completely incompatible with 2018+ cars (even though it was advertised as such) and the seller didn't speak good enough English/didn't have the coding knowledge to help. Luckily they were very nice and refunded my whole order, and I just installed the USP Motorsports harness yesterday. It is much better in terms of build quality, and the dynamic signals work now!

Thanks again to ZERO815 and the past few years of comments on here for getting me across this finish line with this pain in the ass of a project :)
 

ksurl

Go Kart Champion
Location
Socal
Car(s)
18 GTI SE DSG
Update in case anybody runs into this in the future: DON'T GO CHEAP. I really thought that these would all be the same, and I was wrong. The eBay version was completely incompatible with 2018+ cars (even though it was advertised as such) and the seller didn't speak good enough English/didn't have the coding knowledge to help. Luckily they were very nice and refunded my whole order, and I just installed the USP Motorsports harness yesterday. It is much better in terms of build quality, and the dynamic signals work now!

Thanks again to ZERO815 and the past few years of comments on here for getting me across this finish line with this pain in the ass of a project :)
It is likely it would have worked with some repinning and coding but it is hard when you don’t know the layout. Less hassle with oem because you know it will work out of the box.
 

mustard_tiger

New member
Location
Pittsburgh, PA
Car(s)
2019 Golf R 6MT
It is likely it would have worked with some repinning and coding but it is hard when you don’t know the layout. Less hassle with oem because you know it will work out of the box.
Yeah, I'm sure I could have figured it out with some effort but the harness itself was pretty low-quality so I didn't feel that it was worth it. Seller gave a full refund and the RFB harness from USP Motorsports is way nicer (fabric covers on the wiring, much less extra length to stuff away, etc). For anybody considering this in the future, the RFB harness is fantastic and their coding allows for the dynamic sweeping signals without the red flashing light, which I was not expecting.
 

krs

Autocross Champion
Location
Las Vegas, NV
Car(s)
MKVIIS R
Yeah, I'm sure I could have figured it out with some effort but the harness itself was pretty low-quality so I didn't feel that it was worth it. Seller gave a full refund and the RFB harness from USP Motorsports is way nicer (fabric covers on the wiring, much less extra length to stuff away, etc). For anybody considering this in the future, the RFB harness is fantastic and their coding allows for the dynamic sweeping signals without the red flashing light, which I was not expecting.

Why didn't you go with the harness ZERO815 sells?
 
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