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Post by thetechdude on May 13, 2022 17:09:02 GMT
Hi friends, I’ve recently gotten my (new to me) 2017 Golf R. It’s a pre facelift model factory fitted with Halogens. I purchased VLAND rear tails along with a Urotuning harness. I for the life of me cannot understand any of the coding. I’ve tried many different codings, and no matter what I do to revert my coding, it’s not what I want it to be. I’ve tried out the BEC light coding, ECS tuning light coding, and some of the codings that I’ve found online that I can’t find again. Here’s an Imgur album with how it currently looks, and how I would like it to look. imgur.com/a/OZjS8EKAny help is much appreciated. Thank you! Daniel |
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Post by dv52 (Australia) on May 13, 2022 21:02:02 GMT
So- if the car was factory fitted with incandescent tails and you have retrofitted LED tails, then the fundamental problem is that the new tails have more actual lamps in their fittings than the old fittings. This means that the factory wiring loom from the connectors on the rear hatch to the control module doesn't have enough wires to control the extra lamps.
This problem is solved by the harness - which joins together like-function lamps that previously had separate wires. For example: the left and right side brake lights on a factory wired Golf has separate wires connected to separate pins on the module. But, when a harness is used, the 2 x brake lights are connected together and they are controlled by just one pin on the module. The wire/module-pin that is freed-up is then used to control one of the new lamps in the LED tails. The same happens to the left/right side Parking Light (Position Light) lamps
The reason why I'm telling you this is because the harness is NOT OEM and each supplier does this reallocation of the wires in the loom differently. And as a result, the re-allocation of the Leuchte-sets is therefore done differently for each version of harness - because Leuchte-sets are specific to the particular pin-number on the module. So how the Leuchte-sets are programmed after the retrofit can be different for each harness.
Don
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Post by thetechdude on May 14, 2022 15:59:10 GMT
Hi Don,
Thank you for the information. I’m just a bit confused as to how they were mimicking there brake/running light and now they’re not. I may need to check the harness to make sure I installed correctly.
What I’m understanding is that there are four channels total, two of them are going to the outer brake lights and from here it’s “split” to the inner brake/running lights because there is physically not enough cables/pins from the cars original harness. The original inner two channels have to be use specifically for the amber DRLs, right?
Thanks,
Daniel
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Post by dv52 (Australia) on May 14, 2022 22:22:42 GMT
hmm.......... how the arrangement works really does depend on lots of variables including the manufacturer of the light fittings and the country of sale of the car.
For example here are the number of lights on ONE side of a Rest-of-World model mark 7 with incandescent tails:  Every light has its own wire in the car's loom that is connected back to the module And here are the number of lights on a mk7 LED tail lights (it's different to yours, but I suspect that it has the same number of lamps - just arranged differently)
Somehow the harness has to make the limited number of wires in the car's factory loom (which was designed to operate the fitting in the first picture) work on the fitting in the second picture (which has more lights). There are lots of ways of joining together like-function lamps on either side of the car for this solution.
As I said, this is a NON OEM arrangement - so each harness manufacturer is free to choose their own solution - and each Leuchte-set reprogramming instruction needs to suit the individual solution!
Now, if your car is a NAR model, then stuff changes again because incandescent tail-lights in America don't have separate turn-signal lamps. So- it really does depend on lots of variables!!
Don
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Post by thetechdude on May 15, 2022 15:22:59 GMT
Hi Don,
Thanks again for all of the information! I seemed to have done a dumb and flip a couple of my pins. I probably should’ve checked that first…
Thank you!
Daniel
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