Polo 6R BCM Swap for LED headlights

[RonaldSl]

Hello,

I am retrofitting LED headlights with AFS on my 6R 1.2 TSI Comfort edition 2013. For this I made a BCM swap after reading forum. I went from my original BCM 7H0937090 to 7E0937090C. When purchasing BCM, I did not pay attention to whether they are suitable for LED headlights. I would like to know if that is not the case what needs to be changed to make it suitable. I have read that something needs to be changed in the EEPROM. Can someone tell me what exactly needs to be changed?

For the rest, the BCM swap had gone well. Only took over the codes and learn my keys. Not having to pull any wire. Original BCM does have a little more pins.

I must wait on materials like connectors etc. for AFS and putting the headlights in the car.
I have VCDS and ODIS-S and E.
Autolights I installed many years ago and RLS is installed from factory.

[ciclo]

PWM Value with POS/TFL lights and activited Pos-lights
PWM Value with POS/TFL lights and activited DRL-lights
Read here https://www.drive2.ru/l/489696641561919499/


I think I remember that the AFS unit needs the parameterization for LED headlights.
In the Russian forum there is a custom file. Look for the CNK LED headlights and that thread will find a link to the file with the parameters.
I also think I remember that the pinout between the AFS unit and the LED headlight connectors is different than for bi-xenon headlights.

[iichel]

Does your car now have bi-xenon or H7 headlights?

[RonaldSl]

I have checked website, thanks for information. It looks like I need VCP but firtst I gonna try with ODIS E. I think that AFS module is alright because the partnumber is 6R0907357. What I have seen so far is that AFS wiring is the same as with bi xenon only the adapter from 10p halogeen to 14p led connector is different than bi xenon.
Now I have H7 headlights.

[RonaldSl]

With ODIS E it can't be done. I ordered VCP for change parameters.

[RonaldSl]

Today I finally received all parts for installing the headlights.
AFS: left headlight is working, right headlight motor moves but headlight doesn't go up or down (I think internally loose).

LED Headlights:
First, I tryed without wires from headlight pin 10, 12 and 14.
I changed the coding to this: 3CB02FF868E32400B3380FB8FCAA0ED1DBC073BF608670D1A00000030000
What happened:
-DRL/parking lights working but flickering
-Low beam working with lamp diagnose off and with lamp diagnose on it was flickering. When driving low beam goes off after about 5 sec maybe longer and when I turned the switch off and on again the lights go on
-High beam worked but when I turned high beam on than the right headlight low beam goes off till high beam was off.

After all wires connected with list below:

LED connector left.
1 - AFS
2 - AFS
3 - AFS
4 - AFS
5 - Massa - Halogen connector pin 5
6 - Low beam - Halogen connector pin 6
7 - Massa - Halogen connector pin 5
8 - 12V - Halogen connector pin 1 (also try with directly 12V)
9 - Turnlight - Halogen connector pin 9
10 - LED module - T73b/5 LED pulse
11 - High beam - Halogen connector pin 8
12 - LED module - T73b/3 TFL
13 - Empty
14 - LED module - T73b/28

LED connector right
1 - AFS
2 - AFS
3 - AFS
4 - AFS
5 - Massa - Halogen connector pin 5
6 - Low beam - Halogen connector pin 6
7 - Massa - Halogen connector pin 5
8 - 12V - Halogeen pin 1 (also try with directly 12V)
9 - Turnlight - Halogen connector pin 9
10 - LED module - T73b/6
11 - High beam - Halogen connector pin 8
12 - LED module - T73a/5
13 - empty
14 - LED module - T73b/56

The following happenes:
-DRL/parking lights stayes off
-Low beam works without flickering only with ignition on, when car starts the lights go out after about 3 sec and don't go on again so long car still running
-High beam works

When I change byte 18 to 67 (Xenon) than low beam is working all the time, high beam works, and DRL/parking lights are still off.

What is wrong? I checked and don't changed the following parameters with original VCP:
-PWM Value with POS/TFL lights and activated Pos-Lights 28
-PWM Value with POS/TFL lights and activated DRL-Lights 100
-PWM frequency for the activation of the LED driver of one combined LED TFL/PO light module 100

Hopefully someone nows the answer.

[RonaldSl]

Wednesday,17,February,2021,21:59:07:16365
VCDS -- Windows Based VAG/VAS Emulator Running
VCDS autoscan

Code: Select all

Chassis Type: 6R-VW25 (XXX)
Scan: 01 03 04 08 09 10 15 17 19 25 2E 37 44 55 56 61 69

VIN: WVWZZZ6RZDYXXXXXX   Mileage: 73450km-45639miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
37-Navigation -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
69-Trailer -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CBZC)       Labels:. 03F-906-070-CBZ.clb
   Part No SW: 03F 906 070 FJ    HW: 03F 907 309 K
   Component: SIMOS10.23AH10 5465  
   Revision: --H10---    Serial number: 00000000000000
   Coding: 00110096202401080000
   Shop #: WSC 57498 002 1048576
   ASAM Dataset: EV_ECM12TFS02103F906070FJ 004008
   ROD: EV_ECM12TFS02103F906070FD_004.rod
   VCID: 6FBBD3A1171EF2A3BB9-803A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: None
   Part No SW: 6R0 907 379 AS    HW: 6R0 907 379 AS
   Component: ESP9.0i front H01 0002  
   Serial number: --------------
   Coding: 21DD2885212700C9841C1472845900500905
   Shop #: WSC 01383 785 00200
   ASAM Dataset: EV_Brake1ESP90iBOSCH 003020
   ROD: EV_Brake1ESP90iBOSCH_003_VW21.rod
   VCID: 0F7BB32177DE92A3DB9-805A

No fault code found.

-------------------------------------------------------------------------------
Address 04: Steering Angle (G085)       Labels:* 6R0-959-654.clb
   Part No SW: 6R0 959 654     HW: 6R0 959 654 
   Component: LENKW.SENSOR  H06 0060  
   Serial number: 01121204651656
   Coding: 01
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LWSKLOVW25X 005001
   ROD: EV_LWSKLOVW25X.rod
   VCID: 7EA5FEE540748B2B20F-802A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: 6R0-907-044.clb
   Part No SW: 6R0 907 044 H    HW: 6R0 907 044 H
   Component: Climatronic   H11 0812  
   Revision: V0000000    
   VCID: 382928FD2250751BAA3-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7E0-937-BCM-V1.clb
   Part No SW: 7E0 937 090 C    HW: 7E0 937 090 C
   Component: BCM PQ25 Max4 H82 0752  
   Revision: B9082001    Serial number: 4000 194170093
   Coding: 3CB02FF868E32400B3380FB8FEAB0ED10BC073BF608670D1A00000030000
   Shop #: WSC 02739 534 20609
   VCID: 2B0307B1E306CE83D71-807E

   Subsystem 1 - Part No: 1K0 955 559 AH
   Component: RLS 241012 05  54  0403 
   Coding: 07302D

   Subsystem 2 - Part No SW: 6R0 959 801 AB    HW: 6R0 959 801 AB
   Component: J386__TSG_FT  008 1611 
   Serial number: KU0KU023101200015329
   Coding: 58BC30

   Subsystem 3 - Part No SW: 6R0 959 802 AD    HW: 6R0 959 802 AD
   Component: J387__TSG_BT  008 1611 
   Serial number: KU0KU025101200015139
   Coding: 58BC30

   Subsystem 4 - Part No: 1K8 951 171 A
   Component: DWA-Sensor 00  001 0103 
   Coding: 000000

   Subsystem 5 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 
   Coding: 000000

   Subsystem 6 - Part No: 1K8 951 171 A
   Component: DWA-Sensor 00  001 0103 
   Coding: 000000

   Subsystem 7 - Part No SW: 5K0 959 542 A    HW: 5K0 959 542 A
   Component: E221__MFL-TAS  H07 0013 
   Serial number: 0159509             
   Coding: 820000

   Subsystem 8 - Part No SW: 6R0 959 811 G    HW: 6R0 959 811 G
   Component: J388__TSG_HL  008 1611 
   Serial number: KU0KU018101200012269
   Coding: 58BC32

   Subsystem 9 - Part No SW: 6R0 959 812 G    HW: 6R0 959 812 G
   Component: J389__TSG_HR  008 1611 
   Serial number: KU0KU019101200016976
   Coding: 58BC32

6 Faults Found 
02745 - Bulb for Daytime Running Light; Left 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 170
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:13:20

02746 - Bulb for Daytime Running Light; Right 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 170
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:13:20

00978 - Lamp for Low Beam; Left (M29) 
            010 - Open or Short to Plus - Intermittent
             Freeze Frame:
                    Fault Status: 00101010
                    Fault Priority: 3
                    Fault Frequency: 2
                    Reset counter: 210
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:10:09

00979 - Lamp for Low Beam; Right (M31) 
            010 - Open or Short to Plus - Intermittent
             Freeze Frame:
                    Fault Status: 00101010
                    Fault Priority: 3
                    Fault Frequency: 2
                    Reset counter: 210
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:10:09

02898 - Control Circuit for LED Module for DRL and Parking Light; Right 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 170
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:09:26

02896 - Control Circuit for LED Module for DRL and Parking Light; Left 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 170
                    Mileage: 73458 km
                    Time Indication: 0
                    Date: 2015.07.11
                    Time: 03:09:26


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:* None
   Part No SW: 7E0 919 475 L    HW: 56D 919 475 
   Component: PARKHILFE 8K  H02 0106  
   Revision: --------    Serial number: 35841522901332
   Coding: 120001
   Shop #: WSC 01681 002 104857
   ASAM Dataset: EV_VW75XParkAssis8K 001003
   ROD: EV_EPHVA18VW250GPCS_VW25.rod
   VCID: 3B2337F113E65E03471-806E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 6R0 959 655 K    HW: 6R0 959 655 K
   Component: VW10Airbag01M H10 0020  
   Revision: --------    Serial number: 003GX01GR2W1
   Coding: 00314D
   Shop #: WSC 01383 785 00200
   ASAM Dataset: EV_AirbaVW10BPAVW250 A01001
   ROD: EV_AirbaVW10BPAVW250.rod
   VCID: 4ACD62354C3CF78BCC7-801E

   Crash sensor for side airbag: driver side: 
   Serial number: 3575HRB401C4UNBCEGD0

   Crash sensor for side airbag: front passenger side: 
   Serial number: 3585HRB401G4UNBCA1T2

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 3515RRB400G4UOFEKP9P

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 3525RRB400E4UO888HH%

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 6R0 920 860 K    HW: 6R0 920 860 K
   Component: KOMBI         H05 0605  
   Serial number: 00000000000000
   Coding: 140E01
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04716
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW25.rod
   VCID: 3C2134ED16E8593B4EB-8068

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 7E0-909-901.clb
   Part No SW: 7E0 909 901     HW: 7E0 937 090 C
   Component: GW-K-CAN TP20 H82 0752  
   Revision: B9082001    
   Coding: 002200
   Shop #: WSC 02739 534 20609
   VCID: 6889B8BD3270259BFA3-803C

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H05 0605  
   Serial number:               
   Coding: 000002
   Shop #: WSC 12345 123 12345
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03709
   ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
   VCID: 6A8DC2B52CFC178BEC7-803E

No fault code found.

-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650)       Labels:. 5N0-035-342.lbl
   Part No SW: 5N0 035 342 F    HW: 5N0 035 342 F
   Component: SG EXT.PLAYER H19 0550  
   Revision: A1001003    Serial number: 7663867702    
   Coding: 020100
   Shop #: WSC 00788 648 00255
   VCID: 2A0D02B5ECFCD78B2C7-807E

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation (J794)       Labels:| 1K0-035-27x-37.clb
   Part No SW: 3C8 035 279 A    HW: 3C8 035 279 A
   Component: RNS315-EU   H59 0319  
   Serial number: VWZAZ2M5552147
   Coding: 040004110200010000000308
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_RNS315EUV2UDS 001705
   ROD: EV_RNS315EUV2UDS.rod
   VCID: 290FFDB9E97ADC9325D-807C

   Data medium: 
   Subsystem 1 - Part No: 3AA 919 866 
   Component: EUR_W_V12  0078 

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist
Cannot be reached

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:. 6R0-907-357.clb
   Part No SW: 6R0 907 357     HW: 6R0 907 357 
   Component: LWR-ECU       H02 0070  
   Revision: --------    Serial number: --------------
   Coding: 0192000001000000
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_HeadlRegulVWLWRPt 001004
   ROD: EV_HeadlRegulVWLWRPt_VW25.rod
   VCID: 77ABEBC16F4EBA63639-8022

1 Fault Found 
5277205 - Positioning Motor for Headlight Range Right 
          C1086 15 [009] - Open or Short to Plus
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 210
                    Mileage: 73458 km
                    Date: 2021.02.17
                    Time: 03:13:53


-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840)       Labels: None
   Part No SW: 7E0 907 534     HW: 7E0 937 090 C
   Component: Batt.regelung H82 0752  
   Serial number: 4000 194170093
   Coding: 032B7A64
   Shop #: WSC 02739 790 12345
   VCID: 6889B8BD3270259BFA3-803C

   Subsystem 1 - Part No SW: 6R0 915 181 E    HW: 6R0 915 181 E
   Component: J367-BDM  H08 0181 
   Serial number: 00000000004970301739

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:. 1K0-907-383-V2.clb
   Part No SW: 1K0 907 383 F    HW: 1K0 907 383 F
   Component: Towbar module H09 0100  
   Revision: 3A001001    Serial number: ÀÁ006789406032
   Coding: 010D000100000000
   Shop #: WSC 12345 123 12345
   VCID: 303910DDCA20AD5BE23-8064

No fault code found.

End----------(Elapsed Time: 02:15, VBatt start/end: 12.5V/12.4V)-----------

[iichel]

I updated your status to 'registered user' so you can post all you want now.

[RonaldSl]

I updated your status to 'registered user' so you can post all you want now.

Okay, thanks. You now also a answer for my problem?

[iichel]

well, yes and no. i probably wrote the guide you're using and I did it myself, so on a technical level, yes.
but right now i'm just too busy to really go deep into this, i'm sorry.

[RonaldSl]

well, yes and no. i probably wrote the guide you're using and I did it myself, so on a technical level, yes.
but right now i'm just too busy to really go deep into this, i'm sorry.

Okay np. I used indeed your great guide.
I take a deep look in the wiring diagrams and hopefully I find it but I think it's something different.

[iichel]

You can first verify all the wiring. Then next step is coding.

[RonaldSl]

Headlights working now. I saw in the electrical drawings that there must be a yw/bk wire from SB11 to T73a/44. There was a bn/bk wire in it. I take that out and isolate the terminal and take a new wire for it.
I can't find the bn/bk wire in schematic. Someone now what it is originally? The low beam stayed on now (also with byte 18 to 73).

After this the parking light/DRL still not working. Pin 8 from LED headlight connector, I connected this back to T10/1 from halogen headlight connector.
I didn't realise that this problem has something to do with coding.
I find coding topic for OEM Xenon from Iichel and change the following:

• Byte 11 to D1

• Byte 21 bit 0 set to 1

• Byte 22 bit 4 set to 1

• Byte 23 to 41

The DRL goes on and all fault codes in module 9 coud be deleted and don't come back.
No flickering etc. all is working now. I'm verry happy with this.

Maybe someone coud explane me for learning what the following bits meaning:

• Byte 11 bit 0

• Byte 11 bit 5

• Byte 21 bit 0

• Byte 22 bit 4

• Byte 24 bit 1

• Byte 24 bit 7

Thx Iichel for all info. Without all information you posted in the past I never get the headlights working.

[RonaldSl]

I have still one problem with the headlights. While driving both headlights on low beam, both headlights goes out with low beam after a short time.
When take the foot from gas pedal the low beam lights go out.

[RonaldSl]

I saw original xenon headlights has a 2.5mm2 wire for low beam and h7 headlights 1mm2 from T73a/2 and T73b/2 too pin 6 headlight connector.
I replace wire with 2.5mm2 but there was no difference.
I discovered the battery in the car was the wrong one.
I changed in Battery Management EFB battery too wet battery and also in adaption channel 4 68aH too 45aH.
So far so good. I made a little test drive and the lights stayed on. Now I gonna order the right battery.

Edit: low beam still go off but not so often. Now I turned byte 16 bit 0 (low beam via PWM) off and the low beam lights stayed on finally. In the past with aftermarket xenon I had same problem. I think this is also solution for aftermarket xenon in H7 headlights.