RGB Ambient Lighting (hopes/dreams)... pre-facelift Golf Mk7

[sers77]

Thank you..
I am about to retrofit the dasboard trim rgb strips and would like to know where to connect them in the BCM (+ to BCM pin ?, LIN to BCM C pin 29 and - to ground)?

 

[PetrolDave]

Thank you..
I am about to retrofit the dashboard trim rgb strips and would like to know where to connect them in the BCM (+ to BCM pin ?, LIN to BCM C pin 29 and - to ground)?

I suggest you get the wiring diagram for a Golf Mk7.

 

[sers77]

Yes, but if somebody already knows!!!
Maybe erwin holds all the solutions/answers and nothing else could be the answer to all questions on this forum..

 

[Cuzoe]

No Golfs came with RGB lighting. But as for the wiring

12 VDC - Should be battery bus (Terminal 30)
- Pick a location, add a fuse
Ground - Anywhere you want
LIN - BCM Plug C Pin 29

Buried in my (too) lengthy posts... https://forums.ross-tech.com/index.php?threads/30613/post-259528

 

[sers77]

I Want to be able to turn dash rgb trim on/off and dim via MIB, like I do with door light and foot light..
That's why I need pin location of power from BCM to dash trim..
LIN @ pin 29 is already connected.

 

[iichel]

Are you sure it's LIN pin 29 at BCM plug C and not BCM plug A?
C29 is used exclusively for the RGB ambient lighting and roof lights (passat with Ambient Plus), both via LIN, and I don't believe it was ever an option on the Mk7/7.5 Golf.

 

[sers77]

Yes, bcm is from 2020 and dataset is made for this to work.
Just need to know where the power pin is..

 

[Cuzoe]

I Want to be able to turn dash RGB trim on/off and dim via MIB, like I do with door light and foot light..
That's why I need pin location of power from BCM to dash trim..
LIN @ pin 29 is already connected.

What is it you are trying to do exactly? I see in an earlier post you mention Plug C pin 72 for your footwell lights. That tells me your footwell light are not RGB.
If your door lights are not RGB they are being powered by the door control modules.
So a few questions, and then some info for those scenarios...

1) Are you replacing all of your ambient lighting with RGB (multicolor)?

If yes, all RGB lighting is connected the same way. RGB lighting does not get power from the BCM, they have power from battery all the time. BCM then controls the color and brightness.

Pin 1 > +12V (Term 30)
Pin 2 > LIN (BCM Plug C Pin 29)
Pin 3 > Ground

2) What are you trying to install in the dashboard?

• If it's an RGB LED it will need to be wired as mentioned above, and you will have some coding/adaptation to do.
• If it's a single color LED then you can pick one of the the ambient light dedicated channels of the BCM
• Right now your footwells on are Leuchte (light channel) 30 - Plug C Pin 72
• You (likely, would need to see an ad-map of your BCM) have choices of the following for any additional single color LEDs
  • Leuchte 31 - Plug C Pin 61
  • Leuchte 32 - Plug C Pin 35
  • Leuchte 33 - Plug C Pin 36
  • Leuchte 34 - Plug C Pin 37

Yes, bcm is from 2020 and dataset is made for this to work.
Just need to know where the power pin is..

What car do you drive? Assuming a Golf I'm not sure what dataset you're referring to. The Golf BCM doesn't have a dataset, just adaptations. None of the Golfs came with RGB lights (or dashboard light) so the coding will be custom. I (and others) can help with it but we will need an adaption map and will need to know which pin/channel you selected for your added lights.

I am sort of ignoring that you can do an automated load of a set of channels with ODIS if someone has produced a file for you. But that's another topic, and it would not be accurate to call it a "dataset" in any case.

Are you sure it's LIN pin 29 at BCM plug C and not BCM plug A?
C29 is used exclusively for the RGB ambient lighting and roof lights (passat with Ambient Plus), both via LIN, and I don't believe it was ever an option on the Mk7/7.5 Golf.

Yes, 100% sure. I have RGB lights retrofitted in my Golf. You are correct that all RGB lighting is on BCM Plug C Pin 29 (be it in the car/doors or the roof). And it was never an option on the Mk7/7.5 Golf.

For what it's worth, the single color Ambient + overhead light (lighting console, not the colored roof lights), is on BCM Plug A Pin 15 (Roof LIN bus, same bus as the rain/light sensor and sunroof)...

Cuzoe's 2015 Golf TDI S Journal

@gixxerfool Haha, yes it is. I have an even more random thread over on TDiClub that started with an intention to retrofit the Dynamic Steering rack from the Golf R, haha. That may still happen one day now that I have a Golf R steering rack in-hand 😬. I should have referenced my previous post...

golfmk7.com

 

[sers77]

My guess is that china rgb-led won't work as oem, as they are all the same..

Getting some DTC's on LIN communication with the Chinesium led's..

 

[Cuzoe]

My guess is that china rgb-led won't work as oem, as they are all the same..

Getting some DTC's on LIN communication with the Chinesium led's..

Best practice on the Golf is turn off the error reporting Channels for all the RGB LED's, as you won't have them all installed anyway.

What exactly do you have? What part numbers I mean? Link to what you purchased?

Nothing regarding RGB LED's on the Golf is really OEM but you can assign different lights to the zone where you have them installed (in most cases, some lights will not work as part of the roof zone, and footwell lights can be strange). But as a general statement I could install an LED in the center console of my Golf that would be installed in the door of an A4 from OEM. But then I assign that LED to the center console zone so now... it's a center console LED.

 

[sers77]

the part number on all 6 strip LED's (doors and dash) is 3GD927103..

 

[Cuzoe]

Those are single color LEDs, not RGB. That simplifies things. You can connect ground anywhere you want. And connect power to one of the unused light channels that I mentioned above. Then it's a matter of adaptations.

Your door lighting can be done just like OEM. You may need high line door modules, which you may also have already. It doesn't really matter what part number LED you use. As long as you're using a 12V LED it'll work, just power and ground, could even be a 12 volt LED from ordered on eBay or Amazon.

Once you decide where you want to install the various LEDs, and what channel/pin on the BCM you're going to use for each location, I can probably help out with the adaptations. At some point it would be helpful to post and adaptation map of your BCM. If your door control modules and in 592/593 then you're good to go for ambient lighting in the doors.

 

[sers77]

They are multicolor, that's why these china led's are confusing me..

 

[Cuzoe]

When I search that part number and click any of the AliExpress links they are all for single color. They sell them in different colors it seems, white, blue or red.

 

[sers77]

Yes, but these are 30-color LED with one color partnumber..

 

[PetrolDave]

When I search that part number and click any of the AliExpress links they are all for single color. They sell them in different colors it seems, white, blue or red.

Yes, but these are 30-color LED with one color partnumber..

@sers77 what makes you so positive that they are 30-color LED? Do you have any documentation?

 

[Cuzoe]

Assuming the LEDs have 4 pins start out by connecting power and ground. If they are RGB LEDs this will not make them come on. You will have to connect LIN bus and then make the adaptation changes. You could enable all the LIN channels to see if they come on.

Note that on RGB LEDs the extra pin is LIN bus output. "Single color" LEDs could have three pins I guess. There are some that are actually dual color, white and red. I''m not aware of them being used on any Gof but there are some Seat vehicles with ambient lighting that is normally white but goes red in sport mode. This is done by reversing polarity of the LED. I haven't seen a wiring diagram for these though, so I'm not sure if the BCM actually reverses polarity or if they use three pins on the LED.

 

[sers77]

Because I have them in the car and they work as they should, "lightwise"..
But I get DTC's on all doors and dash trim, because they are not communicating with LIN.. So LIN don't know where they are and I can only adjust brightness on all at once..

https://imgur.com/a/J8Fok65

 

[Cuzoe]

Got to be honest here. You are not providing enough information to get any real assistance. Once we can establish what you are trying to do, how you have the LEDs connected, whether they are in fact RGB and provide a BCM adaptation map will be pretty easy to provide some useful help.

What is your overall goal? Replacing all the ambient lights in the car with RGB?

How many pins are on the new LEDs that you have?

How have you connected the new LEDs?
Your saying that brightness works but also there is no LIN communication suggests these are not RGB LEDs.

Please post a current adaptation map as well. The car doesn't really care where the LEDs are installed. You assign the LEDs a location/group.

 

[sers77]

Well, they light up in any color of my choosing..
To be able to control them individually, they can't have the same part number, or doesn't anybody really know?
This might be of help to someone:

Group_01 = > door( bars ) + 8W047355 K + L
Group_02 = > door( handles ) - > 8W0947355G
Group_03 = > roof - > 8W0947355H
Group_04 = > Panoramic roof - > 5NA947219 ( A ) + 220 ( A ) ( Index A is only white ) + 8W0947355J + 3GC919680A
Group_05 = > I( instruments )-Plate - > 8W0947355M
Group_06 = > Center console - > 8W0947355P
Group_07 = > 8W0919390A + 8W0947355C
Group_08 = > 8W0919390B + 8W0947355D
Group_09 = > 8W0919390E + 8W0947355E
Group_10 = > door( bags ) - > 8W0919390F + ( 8W0947355F )
Group_11 = >
Group_12 = >
Group_13 = > footwell - > 8W0947415 A-D
Group_14 = > footwell - > 8W0947415 A-D
Group_15 = > 82A947356H + 82A947356J