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OSRAM headlight AFS errors help needed

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3.7K views 24 replies 6 participants last post by  Cuzoe  
#1 ·
Hey guys, i know its not a popular topic on here but have been wondering if anyone was able to succeffuly run OSRAM LED hedlights on USA based cars without triggering AFS errors. Friend and I have been trying to do searching for good coding instructions but none seem to work and all result in coeds being thrown.

Is there a way to code this out or does is have to be rewired? Anyone had any success
 
#4 · (Edited)
@LVE2DRV : Hi.

I built a "virtual mk7" (a MQB platform test-bench) some years ago using an early model hex09 module which I hooked-up to a simulated LED based head-light/tail-light panel (see below). Yes, this arrangement is different to your set-up - but my test-bench shares similar attributes to your question (i.e. LED lamps with CAN errors)

Anyhow, I managed to silence many of the lamp-type CAN-errors on my "virtual mk7" by re-setting the values on the 2 x channels that are responsible for error monitoring on the Leucte-sets for the respective lamps. However, this fix ONLY worked for the earlier type BCMs; when I applied the same solution on later model BCMs (i.e. hex09 modules that DON'T have an active long-code string)- the fix no longer worked !!

Because I live in the very, very deep-south ( ;)) - I'm not familiar with Yankee model mk7's. However, because this is a MY16 car - I suspect that it might have an earlier type BCM (maybe?)

Here's an example of how to implement my fix: if the the LED lamps are retrofitted to the low-beam lights, the relevant Leuchte-sets are :
  • Leuchte6ABL LC5 - left-side low-beam
  • Leuchte7ABL RB1 - right-side low-beam
For each of these Leuchte-sets, change the 2 x adaptation channels below as shown :
  • Fehlerort mittleres Byte DTC-DFCC > 00
  • Lampendefektbitposition > 00
No guarantee, but maybe give it a shot on your car - it's an easy try and you can always revert to the original settings if it doesn't work!!

Don
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#5 ·
Im currently dealing with the same issue. I ordered a set of the LEDHL104-CM LHD lights from k2 industries. I changed the coding settings recommended above and still have a AFS error. Not sure what steps to take next. I have VCDS but I don’t want to go changing a bunch of coding’s and mess something up.
 
#6 ·
@dark0717 : Hi.
My previous reply really only applies for the low-beam lamps. LEDHL104-CM LHD lights appear to be complete new headlight assemblies - so very different!!

I'm not sure that you can just assume that simply because you used the same new headlight light fittings as OP, the fix will be the same !! Even in the land-of-the-free, VW-America must make mk7s/mk7.5s with many different versions of factory fitted headlights.

More information needed to understand this problem
  1. Was this car originally factory equipped with halogen headlights, or with xenon headlights with halogen daytime running light?
  2. What is the build year and model of this car ?
  3. What EXACTLY is the "AFS error" and are there any other errors.
  4. Have you made a SCAN report- if so, please post-up a copy (as an attachment) so we can see how this car was factory built
  5. Which lamps work properly on the new headlights and which do not?
  6. Have you made an adaptation channel map of the BCM (09 module) - if so, please post-up a copy (again, as an attachment) so we can see how the BCM is coded
Don
 
#7 · (Edited)
Don,
Hello as far as I can tell from the information I got from OSRAM the lights the original poster had and mine are the same, only difference being the color of stripe in the housing, mine being chrome (CM) where as the OP’s would be red (GTI). Other than that they should functionally be the same based off the product data sheet on OSRAM’s website.

1. I have not yet made any adaptations changes in the BCM.
2. the car was originally equipped with xenon headlights and LED DRL.
3. the error just says “AFS ERROR”
4. The only lights not currently working are the small position/parking lights on the inner portion of the headlamp
5. Attached are the malfunctions found doing a VCDS Scan.
 

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#8 · (Edited)
@dark0717: Thanks for the clarifications. Hmm........... something very odd - I might be the harbinger of bad news!!

You say in answer to my question 2:
" the car was originally equipped with xenon headlights and LED DRL"

With absolutely no offense intended - according to the OSRAM product sheet (HERE), these non-OEM fittings are:
  • Suitable for originally equipped halogen headlights and xenon headlights with halogen daytime running light
  • Not suitable for originally equipped xenon headlights with LED daytime running light
So, there appears to be a fundamental mismatch between the underlying design of this non-OEM equipment and the specs of the recipient vehicle (again, no offense)!

To explain why this mismatch is so important - the original OEM HID headlights on this car had a number of internal modules that functionally controlled different aspects of the Advanced Front-lighting System (AFS).

On those OEM headlights that also included LED style DRLs, the internal modules are:
  • Control unit for daytime running light and side light
  • LED module for daytime running light and side light
For emphasis - the 2 x modules above are NOT installed on OEM headlights with halogen DRLs

Of course it's anyone's guess how OSRAM designed these NON-OEM headlight fittings - but clearly from the product-sheet, this equipment does NOT contemplate the management of the 2 x modules listed above. Hence the AFS error and hence the problem with the position lights (I'm surprised that the DRLs work at all)!

And also, hence the SCAN errors on:
  • O9 module = because the general management of the AFS function can no longer be controlled
  • 55 module =because specific control of 2 x modules above is no longer possible
  • 19 module = not sure why this module thinks that the Gateway Installation List (GIL) needs attention - but clearly it is confused by the foreign equipment!
Given that you have already purchased and installed these headlights - I guess that you can attempt to find a work-around for these errors. However, I suspect that without the involvement of the manufacturer, a solution is very unlikely

And perhaps more importantly, if there was a relatively easy fix for this problem - why wouldn't OSRAM take commercial advantage of the solution and remove the "not suitable" listing?

Don't get me wrong - I would delighted to be proven wrong

Don
 
#9 ·
Don,
Thanks for the feed back. I had spoke with the support people at K2 industries regarding the product description saying not suitable for xenon with LED DRL's and they said it shouldn't be a problem, also asked about whether they would cause an AFS error and was told they should be plug and play. I've reached out to K2 as well as OSRAM just waiting for a response. One thing I checks as well is the sockets on both lights and the OSRAM one has a different pin layout and has one pin less than the OEM so I'm curious if this has something to do with my issue. I hav e attached pictures of each socket for reference.
 

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#10 ·
@dark0717 : hmm......... there is much more difference between the 2 x sockets than just "one pin less"

Yes, there is "one pin less" - but if you look more closely at your pictures, you will see that two of the missing pin positions are in different positions. So, very different set-ups.

As for your advice from K2 - I make no comment! Suffice to point-out that it appears mighty strange for OSRAM to limit their sales of this item with the "not suitable" listing in their product-specs if this restriction "shouldn't be a problem" . It just does NOT make commercial sense and ultimately, logical sense!!

I hope that you have the K2 advice in writing!!!

Don
 
#11 ·
Look for user ZERO815 thread on GolfMk7. He fitted Osrams to a US spec lighting package car and had to make it work... out of necessity, as I gather he moved from the US to somewhere in Europe, took his car, and needed it to pass local inspection.

There are two different models of the Osrams (each available in with different accent colors). Neither is intended/tested (or even legal, technically speaking) for NAR cars. It does happen that the standard halogens are, in ways that matter here, pretty much the same everywhere so the Osrams intended for cars with standard halogens are effectively plug and play for non-LP NAR cars.

Outside of the US there are more lighting package(s), if you will. The second Osram headlight is intended for what we could get away with calling a half-NAR-LP car... but not an option we have in NAR. Both flavors of Osram are a functional downgrade for a NAR LP car (aesthetics notwithstanding, subjectively).

@DV52 is both pleasant and pleasantly diplomatic. I am less of both of those. K2 provided you with incorrect information. Osram makes (and advertises) no housing for NAR LP cars, plug and play or otherwise.

If we're really technical even the Osram housing for halogens isn't fully plug and play for NAR. You will have faults in a scan for cornering lights, which the Osram doesn't have. These can be coded out to clear that fault. This is only an issue for NAR. And the fault doesn't generate a dash/vehicle status fault. But it would, in my opinion, disqualify a plug and play claim... IF such a claim had been made by Osram.

Some people also have issues with turn signal flicker which can be solved by changing the bulb type for those channels to LED. This issue is not limited to NAR though. This is from the Osram housing internal conversion of the PWM turn signal from the BCM not always working properly, leading to flicker. And in fairness to Osram it seems to be a rare issue. It does not, in my opinion, disqualify the plug and play claim they make for their halogen housing replacements outside of NAR.
 
#12 ·
@DV52 is both pleasant and pleasantly diplomatic. I am less of both of those.
@Cuzoe: hmm..... I very much doubt that your second sentence above is true - and there are many folk both on the web and in my local part of the world that would dispute the assertion in your first sentence!!! ;). But thank you for the generous words!

Don
 
#13 ·
So I was able to remove the AFS error. I built a jumper harness between the head light and vehicle. After doing a lot of searching I found a write up from a user named ZERO815 who was able to install the same style lights in his US spec GTI with bi-xenon/LED OEM lights. I omitted a few steps as he added wiring to keep the up ad down movement of the low beam, but that wasn't a need for me. I sourced the male and female plug from eBay and removed the pin that related to the AFS motor of the light assembly and then swapped the original J745 module with p/n 5Q0 907 357. Now the issue I'm having is with the DRL's, they no longer are on when the rotary switch is in the off (0) position or AUTO position and parking brake is disengaged. Any help would be appreciated !
 
#18 ·
After doing a lot of searching I found a write up from a user named ZERO815 who was able to install the same style lights in his US spec GTI with bi-xenon/LED OEM lights...
I seem to remember mentioning something about this in an earlier response, maybe even providing his username, haha. Might have made your searching easier.

Why not post a link to the write-up? Although it's not likely many people will do the light swap that you both did... this thread doesn't really provide any useful information as it stands.
 
#14 ·
Let's make sure that we are using the same terms - this car has physical lamps that some call "DRLs". But the fact is that these physical lamps perform multiple lighting functions - one of which is the DRL lighting function.

So what is the problem with this car - is it that that physical lamps don't work at all for any lighting functon, or is the problem that the physical lamps operate OK for the Public-lighting/Position-lighting function - but not for the DRL lighting function?

Don
 
#15 ·
Don,
Apologies for the lack of clarity. Yes the physical lamps themselves work. The lamps illuminate when in AUTO position along with the low beam lamp via the light and rain sensor. They illuminate when the rotary switch is in the full ON position along with the low beam lamp. They also illuminate when switched to the parking/position lights position.
 
#16 ·
OK - that's good because it means that the BCM is communicating with the physical lamps (at least for the Parking-Light function).

So, to progress this problem, I need to see how the Leuchte-sets for the physical DRL lamps have been programmed. To do this, you will need to post-up the file for the adaptation-channel-map for the BCM. I've provided instructions on the Ross-Tech forum for how to do this -see HERE

After you create the admap - add the file as an attachment to a new post

Don
 
#17 ·
OK - that's good because it means that the BCM is communicating with the physical lamps (at least for the Parking-Light function).

So, to progress this problem, I need to see how the Leuchte-sets for the physical DRL lamps have been programmed. To do this, you will need to post-up the file for the adaptation-channel-map for the BCM. I've provided instructions on the Ross-Tech forum for how to do this -see HERE

After you create the admap - add the file as an attachment to a new post

Don
I have attached the current coding for the leuchte sets for the head lights.
 

Attachments

#19 ·
@dark0717: hmm........ the info that you provided in your last post is more than a tad confusing. And it's NOT an admap - which means I can ONLY see the Leuchte-sets, I can't see how the BCM manages the DRL function.

Anyhow - on your earlier posts, you said"
"the car was originally equipped with xenon headlights and LED DRLs"

However, the DRL Leuchte-sets for this car are set-up as factory-values for incandescent DRLs!

What am I missing?

Don
 
#20 ·
Don,
The previous post has what I have the lights coded to at the moment based on following what ZERO815 who had in his wrote up of how he go it working. I have a document containing the original coding, but don’t have an admap with the original set up. I have attached the wrote up from ZERO815, as well as the document that has my original coding. I’ll have to try and get an admap when the weather is more cooperative.
 

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#21 ·
Hmm......... I have absolutely no doubt that @ZERO815 coding for the DRL Leuchte-sets was correct if the car was factory built with incandescent lamps in the headlight fittings- but as I understand from your words, this is not the case on this car.

So, again - if "the car was originally equipped with xenon headlights and LED DRLs" , maybe try the following:

Leuchte4TFL LB4
Lasttyp 4 > 6 - LED Lichtmodul
Lampendefektbitposition 4 > 00
Fehlerort mittleres Byte DTC-DFCC 4 > 00
Lichtfunktion A 4 > Tagfahrlicht
Lichtfunktion B 4 > nicht aktiv
Dimmwert AB 4 > 127
Lichtansteuerung HD AB 4 > Always
Lichtfunktion C 4 > Blinken links aktiv (beide Phasen)
Lichtfunktion D 4 > nicht aktiv
Dimmwert CD 4 > 0
Dimming Direction CD 4 > minimize
Lichtfunktion E 4 > Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)
Lichtfunktion F 4 > Parklicht links (beidseitiges Parklicht aktiviert li & re)
Dimmwert EF 4 > 127
Dimming Direction EF 4 > maximize
Lichtfunktion G 4 > nicht aktiv
Lichtfunktion H 4 > nicht aktiv
Dimmwert GH 4 > 0
Dimming Direction GH 4 > maximize

Leuchte2SL VLB10
Lasttyp 2 > 4 - LED Tagfahrlichtmodul Signal
Lampendefektbitposition 2 > 00
Fehlerort mittleres Byte DTC-DFCC 2 > 00
Lichtfunktion A 2 > Tagfahrlicht
Lichtfunktion B 2 > nicht aktiv
Dimmwert AB 2 > 100
Lichtansteuerung HD AB 2 > Always
Lichtfunktion C 2 > Blinken links aktiv (beide Phasen)
Lichtfunktion D 2 > nicht aktiv
Dimmwert CD 2 > 0
Dimming Direction CD 2 > minimize
Lichtfunktion E 2 > Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)
Lichtfunktion F 2 > Parklicht links (beidseitiges Parklicht aktiviert li & re)
Dimmwert EF 2 > 26
Dimming Direction EF 2 > maximize
Lichtfunktion G 2 > nicht aktiv
Lichtfunktion H 2 > nicht aktiv
Dimmwert GH 2 > 0
Dimming Direction GH 2 > maximize

Leuchte5 TFL RB32
Lasttyp 5 > 6 - LED Lichtmodul
Lampendefektbitposition 5 > 00
Fehlerort mittleres Byte DTC-DFCC 5 > 00
Lichtfunktion A 5 > Tagfahrlicht
Lichtfunktion B 5 > nicht aktiv
Dimmwert AB 5 > 127
Lichtansteuerung HD AB 5 > Always
Lichtfunktion C 5 > Blinken rechts aktiv (beide Phasen)
Lichtfunktion D 5 > nicht aktiv
Dimmwert CD 5 > 0
Dimming Direction CD 5 > minimize
Lichtfunktion E 5 > Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)
Lichtfunktion F 5 > Parklicht rechts
Dimmwert EF 5 > 127
Dimming Direction EF 5 > maximize
Lichtfunktion G 5 > nicht aktiv
Lichtfunktion H 5 > nicht aktiv
Dimmwert GH 5 > 0
Dimming Direction GH 5 > maximize

Leuchte3SL VRB21
Lasttyp 3 > 4 - LED Tagfahrlichtmodul Signal
Lampendefektbitposition 3 > 00
Fehlerort mittleres Byte DTC-DFCC 3 > 00
Lichtfunktion A 3 > Tagfahrlicht
Lichtfunktion B 3 > nicht aktiv
Dimmwert AB 3 > 100
Lichtansteuerung HD AB 3 > Always
Lichtfunktion C 3 > Blinken rechts aktiv (beide Phasen)
Lichtfunktion D 3 > nicht aktiv
Dimmwert CD 3 > 0
Dimming Direction CD 3 > minimize
Lichtfunktion E 3 > Standlicht allgemein (Schlusslicht; Positionslicht; Begrenzungslicht)
Lichtfunktion F 3 > Parklicht rechts
Dimmwert EF 3 > 26
Dimming Direction EF 3 > maximize
Lichtfunktion G 3 > nicht aktiv
Lichtfunktion H 3 > nicht aktiv
Dimmwert GH 3 > 0
Dimming Direction GH 3 > maximize

Don
 
#23 ·
@dark0717: OK, I guess that I'm not surprised - this is a very unusual retrofit (to me, at least)

Another possible reason - could be as I describe below:

There is an inter-play on the BCM for MQB platform cars between the way that the value is selected for the Leuchte command "Daylight running lights" on the adaptation channel IDE06864-ENG115833-Daytime running lamps-Fahrlicht bei Tag and on the Lichtfunkion channels on the Leuchte-sets in the suggestions in my previous reply.

The problem arises because for the values in the channels above - VCDS reports 2 x instances of "Daylight running lights" that can be selected by the user

Here is a diagrammatic explanation of the problem:
Image


As I hope that you can see - selecting different instances of "Daylight running lights" has a different outcome. Maybe check that in ALL instances the combination 1A-1B has been selected (I'm guessing, of course)!

Don