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Identify 30/23 Byte: Board Net & Turn Signal

 
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dieselmartin
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Post13-02-2009, 12:28    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Hi.

I have various versions of the part number 3C0 937 049 in different cars.

Golf5 3C0 937 049 AJ (30 bytes in Autoscan).
3C 3C0 937 049 AE (one with xenon headlights, one without) (both are 23 bytes in the Autoscan).

Byte 23 is interesting, but it's only relevant within the 30-byte label (LBL) for parts with the same part number.
EDIT: Of course, because 23 bytes end with byte 22.

There's actually a turning light above the fog lights.
Which BNSTG models can do that?

If there are only "00000" in the back, does that still constitute a 30-byte value, and could the Golf handle it with that?

m;

BRÜLL: LC,04,7, Flux compensator installed.

EDIT: Is a 30-byte "word" sufficient for a 30-byte storage unit and thus enable the ability to use turn signals with fog lights?

Quote:
Address 09: Body Control Module
Label file: RKS\3C0-937-049.LBL
Part number SW: 3C0 937 049 AJ, HW: 3C0 937 049 AJ.
Component: On-board network module H54 2202.
Encoding: 018B8F2700041500471400001400000000097F075C000100000000000000
Workshop #: WSC 00000
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:11.
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dieselmartin
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Post15-02-2009, 22:14    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Edited and found.

REDIRECT,3C0-937-049-30-H.LBL,3C0-937-049-AJ ; 30 bytes (High-end)
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:15.
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matthiasTDI96
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Post17-02-2009, 13:57    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Just discovered something while playing around with the Caddy Maxi:

Here's how the encoding should be structured, whether it's long or short... is that correct?

3C0-937-049-A; 21 bytes (medium).

3C0-937-049-B; 21 bytes (medium).

3C0-937-049-C; 21 bytes (high-end).

3C0-937-049-D; 21 bytes (medium).

3C0-937-049-E; 21 bytes (high-end).

3C0-937-049-F; 21 bytes (medium).

3C0-937-049-G; 21 bytes (high-end).

3C0-937-049-H; 23 bytes (medium).

3C0-937-049-J; 23 bytes (high-end).

3C0-937-049-K; 23 bytes (medium).

3C0-937-049-L; 23 bytes (high-end).

3C0-937-049-P; 23 bytes (medium).

3C0-937-049-Q; 23 bytes (high-end).

3C0-937-049-S ; ?? Byte (High-end)

3C0-937-049-AA; 23 bytes (high-end).

3C0-937-049-AC; 23 bytes (high-end).

3C0-937-049-AD; 23 bytes (medium).

3C0-937-049-AE; 23 bytes (high-end).

3C0-937-049-AG; 23 bytes (high-end).

3C0-937-049-AH; 30 bytes (medium).

3C0-937-049-AJ; 30 bytes (high-end).

3C0-937-049-AK; 30 bytes (medium).

3C0-937-049-AL; 30 bytes (high-end).

3C8-937-049-D; 30 bytes (medium).

3C8-937-049-E; 30 bytes (high-end).

3C8-937-049-F; 30 bytes (high-end).


Translated on 14-08-2026, 9:19.
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dieselmartin
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Post17-02-2009, 15:45    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

That looks very much like a cropped 3C-09.lbl file icon_smile.gif.
That's where I got the line I quoted above.

I really need to finally figure out what VCDS does with all those LBL, XPL, and other files...

Perhaps the T5 can also "turn" icon_wink.gif.

The newer Passat models that I'm familiar with all have "unfortunately" come equipped with xenon headlights.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:23.
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matthiasTDI96
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Post17-02-2009, 15:58    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Let me see if the T5 can do that... I haven't thought about it before, and I already have enough of that thing, especially since I only get to drive it very rarely... icon_sad.gif


Translated on 14-08-2026, 9:24.
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dieselmartin
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Post17-02-2009, 16:13    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

UI

The 7H0 937 049 AA cannot do much icon_sad.gif.

Too bad.
Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:25.
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dieselmartin
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Post18-02-2009, 21:43    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Is there anyone here who has a 30-byte Hilline on-board network control unit (BCU) and would be willing to experiment with Byte23?
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:25.
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matthiasTDI96
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Post19-02-2009, 8:31    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

The Caddy has the AJ...as soon as I have time and my colleague is no longer afraid (?), I will be able to play icon_smile.gif.


Translated on 14-08-2026, 9:26.
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Post20-02-2009, 14:51    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Okay, I played around with the Caddy. The AJ control unit has some interesting features.

There's a problem. The Caddy only has one key with remote central locking (FFB) and one without. However, there's an issue: When using either key to unlock the car (using the physical key), only the driver's door opens. Locking all doors, however, works fine. Unlocking also works if the other key is in the ignition and the ignition is turned on. The locking cylinder seems to be recognizing the different states. What exactly should I investigate further... or could it be due to the non-installed flux capacitor?


Translated on 14-08-2026, 9:26.
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dieselmartin
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Post20-02-2009, 15:12    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Is the single door opening programmed?

I'm not familiar with such problems; I don't have any visible locking cylinders .

Does the Caddy have automatic headlights?
If not, could you still enable the "Coming Home" and "Leaving Home" features or one of them?

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
icon_wink.gif
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:28.
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matthiasTDI96
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Post20-02-2009, 15:28    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

He has CH and LH... also the light sensor as well. The cornering lights are already coded and working. The key thing is a bit awkward because two people need to operate it. Single door unlocking isn't activated; all doors open, which is fine so far. The windows can also be opened and closed with the FFB or the key... I've tried several things now and haven't found a solution yet. Yes, on Fridays we sometimes work on personal projects here icon_smile.gif, but of course only for a very short time.


Translated on 14-08-2026, 9:29.
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dieselmartin
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Post20-02-2009, 15:33    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

Just buy a replacement remote control.

If you consider the few euros and apply them to the lifespan of the car, it's really a good value.

I ALSO WANT TO DO SOME CODING icon_smile.gif.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:30.
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matthiasTDI96
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Post20-02-2009, 16:12    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

That would certainly be the simplest solution and is probably what's happening. However, the current behavior of the vehicle is also quite strange. All doors should open with the key, especially since the other key is in the ignition and everything seems to be working perfectly...

Okay, let's keep coding until we find a solution... By the way, having the parking light on with the turn signal is totally ridiculous-looking... but it's interesting to see what's possible.

What is the difference between a "ZV" (likely referring to a central locking system) with and without "safe" functionality? Does "DWA" refer to something specific? I'm still not understanding everything.


Translated on 14-08-2026, 9:31.
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Post20-02-2009, 16:16    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

...and why on earth can you turn off the side indicators...? icon_rolleyes.gif ...we're only interested in the doors anyway....

Does anyone know the equipment code for the brake pad wear indicator? The Caddy has the cable visually connected to the brake pads, and if you enable it in the instrument cluster (IC), it requests a brake pad check. This suggests that the wiring harness is not connected, right? Also, it doesn't have a windshield washer sensor icon_sad.gif.

And generally speaking, is it possible to adjust the brightness settings on the "MFA Mouse Cinema" device in some way, so that you can set the contrast (CH) and luminance (LH), or do you need the largest possible "MFA" for that?

A thousand questions... I probably have to take the bus again icon_smile.gif, which will lower my daily productivity.


Translated on 14-08-2026, 9:32.
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dieselmartin
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Post22-02-2009, 1:00    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

So, in the 3C setting, you need MFA+ to be able to adjust the LH and CH settings.
They exist in the "Highline" AI, as opposed to "Midline" and "Lowline" AI.

I think it's nice when turn signals are used as daytime running lights. But it depends on the car. It also looks strange on the G5.

I'm starting to suspect that the rotation of the xenon lenses, even when the bulbs are turned off in "TFL on fog lights" mode, is a bug in the BNSTG system. It's likely sending a signal to the lenses: "Hey, light is on," and they start spinning as a result.

Okay, so I'm looking for a Xenon 3C with a newer BNSTG and hoping I can get the chance to program it sometime. (Maybe in two weeks).

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 14-08-2026, 9:35.
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matthiasTDI96
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Post22-02-2009, 12:18    Subject: Identify 30/23 Byte: Board Net & Turn Signal Quote

I believe the Caddy has a smaller MFA (Multi-Function Display), but I'm not very familiar with it. As a Golf IV owner, and knowing that my T5 also has the larger MFA due to the factory navigation system...

Okay, so in the Caddy MFA, there is no "Lh CH" menu option. The LH CH can actually be activated via the auto function of the light switch. It would be great if we could do something about that, but who am I to say? Having fun is important, right Martin icon_smile.gif?


Translated on 14-08-2026, 9:36.
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