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Post by proofen on Mar 23, 2024 15:00:24 GMT
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Post by dv52 (Australia) on Mar 23, 2024 20:29:21 GMT
proofen : I'm confused! neither of the Leuchte-sets in your pictures are factory assigned for the reversing lights!! When you say " I have retrofitted LED lights on my golf 7.5 -2017 Sweden" - what do you mean? Did you simply replace the lamps - or did you install entirely new fittings? If the latter, was this car factory built with incandescent tail-lights? If so, did you also install a cross-wiring harness between the factory tail-light connector and the new fittings? If so, which of the many harnesses did you use? Don
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Post by proofen on Mar 23, 2024 22:09:43 GMT
dv52 (Australia) tell me about it 😅 I had incandescent and installed new fittings (LED) i have installed the cross-wiring. Everything except my right reverse light works. As I said when I put in the reverse my foglights came on and not my reverse lights. I managed to find which leuchte turned of the fog lights, which is leuchte28 and 29.It looks to me like the leuchte settings for foglights are my reverse lights and the other way around. Leuchte26 on 100% active turns on my left reverse light. I tried to copy the settings i have in leuchte26 to leuchte27 but nothing happens with the right reverse light. I hope this answers some of your questions. Tobias EDIT: Im new to this, so I might be really off. If you could send me in the right direction it would be most appreciated EDIT2: This is The light i used to have i.postimg.cc/GpmcxhB2/E424-B033-7413-4-D6-D-B18-A-010-E1-E1-E4-D7-C.jpg
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Post by dv52 (Australia) on Mar 24, 2024 6:07:59 GMT
proofen : hmm.......... a picture of your new tail-lights does NOT help because the problem is NOT in your new fittings! Maybe we should go back to basics - so, let's start at the beginning: This car was factory built with OEM incandescent tail-lights- which has fewer lamps than the LED equivalent. This means that the factory wiring loom from the central electrics module to the tail-light connectors does NOT have a sufficient wire-count to drive the individual lamps in the LED tail-lights in the factory manner. Hence the need for a cross-wiring harness. The role of the harness is to parallel operate lamps on both car-sides that have the same lighting function - like the brake lights and Parking Lights. The OEM set-up operates lights on either car-side with separate wires - so the parallel arrangement runs both car-side lights with ONE wire - thereby freeing-up a spare wire. This spare wire is then used for another lighting function on the LED tail-lights.
The re-arrangement that the harness makes changes the pin assignment of the central electrics module to the OEM lamp positions on the tail-lights. This has the consequence of changing the factory Leuchte-set assignments as well.
As you can imagine, there are many ways of re-assigning the tail-light lamps via across wiring harness and each harness manufacturer does this differently.
So, I ask again (because it's important to understanding the problem in this case) - "which of the many harnesses did you use?"
Don
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Post by proofen on Mar 24, 2024 8:15:48 GMT
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Post by dv52 (Australia) on Mar 24, 2024 21:17:57 GMT
hmm....... I intend no offense to your Swedish heritage, but your link is more than a tad obscure (at least to an Antipodean like me)- I have never seen this particular cross wiring harness, or the seller.
As I said, the harness results in joining together tail-light lamps with the same lighting function (thus freeing-up spare wires) and it re-assigns the Leuchte-sets to different lamp positions on the new tail-light fittings.
And importantly - because the harness is very, very non-OEM - each manufacturer can design their harness differently (alas).
Did the seller of the tail-lights supply ANY instructions with their product that might provide a hint of how the harness works? I assume that the new tail-lights actually has an active reversing lamp on the right-side fitting?
You included a picture of Leuchte27NSL RC6 in your first post, This Leuchte-set is NOT normally activated on mk7.5 with factory fitted incandescent tail-lights (this Leuchte-set is active ONLY for LED tails). This means that normally there is NOT a wire connected to the pin on the central electrics module that is controlled by this Leuchte-set on cars with factory fitted incandescent tails. But I wouldn't be surprised if mk7.5s in Nordic countries are wired differently because of your local regulations (mk7.5s in other countries normally have only ONE fog-light)
So - what is the way forward? - Contact the seller and request a copy of the coding changes for this wiring harness
- Create a back-up for the central electrics module and post-up (maybe I can intuit something from the existing coding- perhaps?)
Don
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