Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

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Aquavalver
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Posts: 470
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Drives: 2013 Polo Blue GT
Location: north-east Kent

Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

So last year I fitted some LED rear lights, that were meant to have been UK insurance approved. Anyway, a few days later I realised that I had no reverse light or fog light. I took the lights off and then realised that the pins on the RHS rear light matched the plug on the end of the LHS loom and vice-versa! So then I obviously realised that the lights for actually for LHD cars! Anyway, I got a friend of mine (who lives up the other end of the country) to make an adapter loom for me and then everything worked fine apart from the can bus warning light on the clocks.

Back in early March I found a retro-fitter/coder and he fitted my 6C carbon fibre steering wheel and of course I needed to change the BCM for the steering wheel buttons to illuminate. The BCM was a 7E0 that I bought from Ciclo back at the end of 2019! Everything worked fine apart from the rear fog light. The guy that fitted them wasn't able to get it working and it was dark and late by then. He said he'd look for the wiring diagram to see if he could sort it. Anyway, he found the diagram and said that on the old BCM, it was pin 6 for the rear fog light and on the new BCM it was pin 65, on plug A. He was very busy for while and it wasn't too important at the time needed the rear fog light working, but as my MOT is due in a week, I contacted him and went to see him this morning to get it sorted. However when pin 65 was used, the rear fog light was on permanently and the sun-visor vanity mirror lights did not work and he was not able to sort the problem. I include the wiring diagram and the scan he did.

I have an aftermarket Alpine Apple car play headhunit -iLX-705D which is why some of the radio faults are showing.

Can anyone help with the fog light problem and also what do I need to remove the canbus warning light because if have LED rear lights?


Saturday,24,June,2023,10:10:03:22001
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.3.1.0 (x64) HEX-NET CB: 0.4631.4
Data version: 20230421 DS346.2
www.Ross-Tech.com


VIN: WVWZZZ6RZDY265331 License Plate:


Chassis Type: 6R-VW25 (7E0)
Scan: 01 03 04 08 09 10 15 17 19 25 2E 44 56 61 77

VIN: WVWZZZ6RZDY265331 Mileage: 174970km-108721miles

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: OK 0000
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
61-Battery Regul. -- Status: Malfunction 0010
77-Telephone -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CPTA) Labels:. 04E-907-309-V1.clb
Part No SW: 04E 906 016 Q HW: 04E 907 309 D
Component: 1.4l R4 TSI H08 5534
Revision: WCH08--- Serial number: CVN: 992D05A3
Coding: 00190032242411000000
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_ECM14TFS01104E906016Q 002008
ROD: EV_ECM14TFS01104E906016DL.rod
VCID: 302CFCA56B76A2137B-8064
VINID: 9E69EAAAA1A2A94A421850C3042E66C15C

No fault code found.
Readiness: 1110 0001

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. User\6R0-907-37x-ESP90.lbl
Part No SW: 6R0 907 379 AS HW: 6R0 907 379 AS
Component: ESP9.0i front H02 0002
Serial number: --------------
Coding: 23DD4885232900C5C417126CC45200950905
Shop #: WSC 01383 785 00200
ASAM Dataset: EV_Brake1ESP90iBOSCH 003020
ROD: EV_Brake1ESP90iBOSCH_003_VW21.rod
VCID: 0F6E5F59D6089DEB42-805A

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 H07 0070
Serial number: 31031304650953
Coding: 01
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_LWSKLOVW25X 005001
ROD: EV_LWSKLOVW25X.rod
VCID: 7EB0129DE1A28463B9-802A

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 H12 0812
Revision: V0000000
VCID: 383CC4858B067A5333-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 7E0-937-BCM-V1.clb
Part No SW: 7E0 937 090 D HW: 7E0 937 090 D
Component: BCM PQ25 Max4 H82 0762
Revision: B9082001 Serial number: 8602 116190116
Coding: 25B4293F08E12400B32809302E2B0ED05FC0412F608400402000202A0000
Shop #: WSC 00046 648 00255
VCID: 2C14E8D54F5EC6F347-8078

Subsystem 1 - Part No: 1K0 955 559 AH Labels: 1K0-955-559-AG.CLB
Component: RLS 260313 05 54 0403
Coding: 02302D

Subsystem 2 - Part No SW: 6R0 959 802 BH HW: 6R0 959 802 BH Labels: 6R0-959-802.CLB
Component: J386__TSG_FT 003 8611
Serial number: KU0KU012121333461448
Coding: 1400A0

Subsystem 3 - Part No SW: 6R0 959 801 CF HW: 6R0 959 801 CF Labels: 6R0-959-801.CLB
Component: J387__TSG_BT 003 9612
Serial number: KU0KU029051551493259
Coding: 0400A1

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: 1K8 959 442 HW: 1K8 959 442
Component: E221__MFL-DC1 H04 0103
Serial number: 29170002240800037504
Coding: A40000

5 Faults Found:
01758 - Bulbs for Brake Lamps
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 2
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:36

03428 - Activation of Left Adaptive Light
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:36

03429 - Activation of Right Adaptive Light
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:36

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: 46
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:37

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: 46
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:37


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446) Labels:| 6R0-919-475.clb
Part No SW: 6R0 919 475 C HW: 7E0 919 475
Component: PARKHILFE 4K H11 0013
Revision: -------- Serial number: 47361309300690
Coding: 108004
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_VW250ParkiAssis2 S01008
ROD: EV_VW250ParkiAssis2.rod
VCID: 3E30D29DA1224463F9-806A

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: VW10Airbag01X H10 0020
Revision: -------- Serial number: 003GX01NV6N7 Dataset Number: v00307236R0 0001
Coding: 003158
Shop #: WSC 01383 785 00200
ASAM Dataset: EV_AirbaVW10BPAVW250 A01001
ROD: EV_AirbaVW10BPAVW250_VW25.rod
VCID: 4AD88E4DEDEAF8C355-801E

Crash sensor for side airbag: driver side:
Serial number: 3575HRB401A50FP6BQAG

Front Passenger's Side Airbag Crash Sensor:
Serial number: 3585HRB400K50FBCEI8B

Rear Side Airbag Crash Sensor (on driver's side):
Serial number: 3515RRB401250G4AHOF5

Passenger side rear thorax airbag crash sensor:
Serial number: 3525RRB400C50FT2FQ8O

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1
Part No SW: 6R0 920 970 C HW: 6R0 920 970 C
Component: KOMBI H05 0607
Serial number: 00000000000000
Coding: 140A01
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04716
ROD: EV_Kombi_UDS_VDD_RM09_004_VW23.rod
VCID: 3620CABD89128C2321-8062

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7E0-909-901.clb
Part No SW: 7E0 909 901 HW: 7E0 937 090 D
Component: GW-K-CAN TP20 H82 0762
Revision: B9082001
Coding: 002104
Shop #: WSC 00046 648 00255
VCID: 689C54C59B262AD363-803C

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels:| 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 953 234
Component: IMMO H05 0607
Serial number:
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03709
ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
VCID: 6A982ECD8D2A18C375-803E

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: 7664620381
Coding: 010100
Shop #: WSC 00788 648 00255
VCID: 2A18EECD45AAD8C3B5-807E

1 Fault Found:
03138 - Input AUX IN
009 - Open or Short to Ground
Freeze Frame:
Fault Status: 01101001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 0 km
Time Indication: 0


-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 6Q0-423-156.clb
Part No: 6R0 423 156 C
Component: LenkhilfeTRW V278
Coding: 11241
Shop #: WSC 00788
VCID: 302CFCA5F776A2137B-8064

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio
Cannot be reached

-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840) Labels:. 1K0-907-534.clb
Part No SW: 7E0 907 534 HW: 7E0 937 090 D
Component: Batt.regelung H82 0762
Serial number: 8602 116190116
Coding: F0001800
Shop #: WSC 00000 000 00000
VCID: 689C54C59B262AD363-803C

Subsystem 1 - Part No SW: 6R0 915 181 E HW: 6R0 915 181 E
Component: J367-BDM H08 0181
Serial number: 60094959322031188158

1 Fault Found:
01044 - Control Module Incorrectly Coded
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:37


-------------------------------------------------------------------------------
Address 77: Telephone (J412) Labels:| 7P6-035-730.clb
Part No SW: 7P6 035 730 J HW: 7P6 035 730 J
Component: TELEFON H15 3200
Revision: 1B001001 Serial number: 00007663598751 Dataset Number: 7P6035730J 0001
Coding: 0A01000000010101
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_UHVNA 002720
ROD: EV_UHVNA_002.rod
VCID: 393AC181B80C635BCC-806C

4 Faults Found:
9457427 - Left audio channel for speech/telephone
B104F 13 [009] - Short to GND
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

9457171 - Right audio channel for speech/telephone
B104E 13 [009] - Short to GND
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

9458195 - Control Module for Cellular Telephone
B1052 13 [009] - Open Circuit
[Bedieneinheit fοΏ½r Handyvorbereitung (Drei Tasten Module): Unterbrechung]
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

13636352 - Control module not coded
U1013 00 [009] - -
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:37


End----(Elapsed Time: 01:41, VBatt start/end: 12.0V/12.0V. VIgn 12.0V)-----

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iichel
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by iichel »

Are all errors caused by LED lights in the brakes, fogs and DRLs?
Aquavalver
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Posts: 470
Joined: Thu Jul 05, 2012 2:23 pm
Drives: 2013 Polo Blue GT
Location: north-east Kent

Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

iichel wrote: Sat Jun 24, 2023 8:45 pm Are all errors caused by LED lights in the brakes, fogs and DRLs?
Before the BCM change, they worked fine apart from the canbus warning light. I don't have DRL's now as have a WRC front bumper. This is how the rear lights are:
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ciclo
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

Hi Aquavalver,

1- Faults in front fog lights (Adaptive Lights) and DRLs.
Well, if you no longer have front fog lights and DRLs...
New BCM coding: (test 1)
25B4293F08E12400B32809302C2B0ED01FC0412E600000002000202A0000

2- Rear fog light, etc.
The original factory wires for the rear fog light on your BlueGT with factory BCM Max is correct for any type of BCM Max, 7H0 or new 7E0.
T73a/6 is the Rear fog light output signal in models with start/stop system or factory bi-xenon headlights.
T73a/65 is the Supply (30G) output signal for interior light and luggage compartment light... as your friend was able to verify.πŸ€¦β€β™‚οΈ... :)

We will try to code your aftermarket LED taillights into the new BCM once we fix the bugs in the front fog lights and DRLs.
Do you know if this type of LED taillight is based solely and exclusively on LEDs or is it possible that it includes resistors internally to avoid failures/faults?


---
All these types of aftermarket LED taillights 'for the 6R' were always a disaster in every way. Approvals (legality), most are poorly manufactured, etc...
I recommend installing the original 6C taillights.
Aquavalver
Silver Member
Posts: 470
Joined: Thu Jul 05, 2012 2:23 pm
Drives: 2013 Polo Blue GT
Location: north-east Kent

Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

ciclo wrote: Sun Jun 25, 2023 9:42 am Hi Aquavalver,

1- Faults in front fog lights (Adaptive Lights) and DRLs.
Well, if you no longer have front fog lights and DRLs...
New BCM coding: (test 1)
25B4293F08E12400B32809302C2B0ED01FC0412E600000002000202A0000

2- Rear fog light, etc.
The original factory wires for the rear fog light on your BlueGT with factory BCM Max is correct for any type of BCM Max, 7H0 or new 7E0.
T73a/6 is the Rear fog light output signal in models with start/stop system or factory bi-xenon headlights.
T73a/65 is the Supply (30G) output signal for interior light and luggage compartment light... as your friend was able to verify.πŸ€¦β€β™‚οΈ... :)

We will try to code your aftermarket LED taillights into the new BCM once we fix the bugs in the front fog lights and DRLs.
Do you know if this type of LED taillight is based solely and exclusively on LEDs or is it possible that it includes resistors internally to avoid failures/faults?


---
All these types of aftermarket LED taillights 'for the 6R' were always a disaster in every way. Approvals (legality), most are poorly manufactured, etc...
I recommend installing the original 6C taillights.
Thank you Fernando!

The reason why I liked this design of LED rear light is because for 1., most people when changing the rear lights choose these V-Land (Audi A1?) style ones which I'm not so keen on, 2. They kinda match the factory Bi-Xenons in their style (which I still have to fit at some point) and 3. Not many people seem to have them and I like to try and be a little different!

They are all LED and there does seem to be a resistor, if you notice in this photo.

Only slight problem is that the retro-fitting/coding guy is about 1 1/2 -2 hour drive away each way, so it's a bit of a trek and fair bit of fuel to keep going to him.
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ciclo
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

Thank you very much for the image!πŸ‘
Image
By the way, the wiring diagram you posted is for the Polo 6C...

Here you find any diagram you may need for 6R, etc. :arrow: https://drive.google.com/drive/folders/ ... sp=sharing

---
Timothy, I completely understand what you are saying and your ideas are good, but the problem of not having a diagnostic/coding tool is a great challenge to solve these issues. There is no point in taking such long drives and wasting gas money to try BCM codings that I give you that might not end up working or fixing this issue.

This model of LED taillights do not usually give problems in older BCMs and lower than the BCM Max, due to the simple fact that in 6R with those lower BCMs there is no diagnostic for some lights because they work without the BCM management.
The 6R BlueGT was born with 7H0 BCM Max and many lights are managed by the BCM.

With the new 7E0 BCM Max models the matter is more complicated/complex since they are parameterized to be able to manage all the lights.

In 2019 you should have bought the original VCDS...😊 (you would have already amply gotten the necessary performance and it would be fully amortized).

At the moment I can only tell you to buy a diagnostic tool, even if it is one of those cheap ones that are sold on Ali, even if you only use it for this matter, it is cheaper than any other circumstance.
It will even be absolutely necessary if you plan to install Bi-xenon headlights, in which case you should seriously consider installing the original 6C taillights to get everything working properly.


Timothy, I would have liked to live near you so that I could solve all this for you in a jiffy.
(if possible, reinstall the original taillights or the 7H0 BCM to go to MOT)

---
Aquavalver
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Posts: 470
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Drives: 2013 Polo Blue GT
Location: north-east Kent

Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

ciclo wrote: Sun Jun 25, 2023 7:01 pm Thank you very much for the image!πŸ‘
Image
By the way, the wiring diagram you posted is for the Polo 6C...

Here you find any diagram you may need for 6R, etc. :arrow: https://drive.google.com/drive/folders/ ... sp=sharing

---
Timothy, I completely understand what you are saying and your ideas are good, but the problem of not having a diagnostic/coding tool is a great challenge to solve these issues. There is no point in taking such long drives and wasting gas money to try BCM codings that I give you that might not end up working or fixing this issue.

This model of LED taillights do not usually give problems in older BCMs and lower than the BCM Max, due to the simple fact that in 6R with those lower BCMs there is no diagnostic for some lights because they work without the BCM management.
The 6R BlueGT was born with 7H0 BCM Max and many lights are managed by the BCM.

With the new 7E0 BCM Max models the matter is more complicated/complex since they are parameterized to be able to manage all the lights.

In 2019 you should have bought the original VCDS...😊 (you would have already amply gotten the necessary performance and it would be fully amortized).

At the moment I can only tell you to buy a diagnostic tool, even if it is one of those cheap ones that are sold on Ali, even if you only use it for this matter, it is cheaper than any other circumstance.
It will even be absolutely necessary if you plan to install Bi-xenon headlights, in which case you should seriously consider installing the original 6C taillights to get everything working properly.


Timothy, I would have liked to live near you so that I could solve all this for you in a jiffy.
(if possible, reinstall the original taillights or the 7H0 BCM to go to MOT)

---
The other problem is, is that I don't have a laptop or the money for one :(
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

I understand your difficult situation, you will have to have some patience to try to save some money to start this good project again. It doesn't matter how long it takes as long as you keep the illusion alive and desire to do it.
It is likely that at some point in the future you will have a little more luck in economic matters. πŸ‘
Aquavalver
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

ciclo wrote: Tue Jun 27, 2023 5:23 am I understand your difficult situation, you will have to have some patience to try to save some money to start this good project again. It doesn't matter how long it takes as long as you keep the illusion alive and desire to do it.
It is likely that at some point in the future you will have a little more luck in economic matters. πŸ‘
I hope so, but some experts only seem to see it getting worse, at this rate I'll end up homeless!

So I re-fitted the original rear lights tonight, but still no rear fog light working. Also strangely the canbus warning light is still on!
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

The canbus warning light is due to incorrect coding for the current installed equipment.
- Due to installing the WRC bumper and removing the fog lights and DRL... and then not coding the BCM.
- Also possible due to the new wiring your friend did for the aftermarket LED taillights... as I understood these aftermarked LED taillights are for LHD and your BlueGT is RHD.πŸ€¦β€β™‚οΈ

The rear fog light does not work with the original taillights because you have it coded as if it were an LED version (Byte27), the rest of Bytes for rear fog light is correct!
It may also cause the canbus warning light.

It is necessary to return to the original wiring installation!!!
A new BCM coding is also essential!!!


---
In economic matters nothing is written, the experts make conjectures that are not valid for everyone.
Never lose hope, and try to be the one who writes your future. :wink:
Aquavalver
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

ciclo wrote: Thu Jun 29, 2023 2:10 am The canbus warning light is due to incorrect coding for the current installed equipment.
- Due to installing the WRC bumper and removing the fog lights and DRL... and then not coding the BCM.
- Also possible due to the new wiring your friend did for the aftermarket LED taillights... as I understood these aftermarked LED taillights are for LHD and your BlueGT is RHD.πŸ€¦β€β™‚οΈ

The rear fog light does not work with the original taillights because you have it coded as if it were an LED version (Byte27), the rest of Bytes for rear fog light is correct!
It may also cause the canbus warning light.

It is necessary to return to the original wiring installation!!!
A new BCM coding is also essential!!!

---
In economic matters nothing is written, the experts make conjectures that are not valid for everyone.
Never lose hope, and try to be the one who writes your future. :wink:
Thank you. The canbus warning light didn't come on after the WRC front bumper was fitted, but when the led lights were fitted. When I re-fitted the original rear lights, I also removed the adapter looms, so it was as it used to be apart from the BCM.
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ciclo
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

Yes, I understood all thatπŸ‘, although pin T73a/6 was touched during this process to feed its wire erroneously/mistakenly from T73a/65, with the possibility that it was not installed correctly later.
We need a diagnostic tool to rule out possible causes of failure and 'investigate' why the rear fog light now doesn't work with the original taillights.
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

Notes:
- The canbus warning light could appear when you requested (intentionally or not) from the light switch the front fog lights function or the BCM managed the static cornering lights function without having the front fog lights installed, which does not necessarily have to match with the bumper installation.
Your BCM was not coded correctly after the WRC bumper installation, and I can assure you that due to these conditions the diagnosis explodes (warning light + detected faults).

- Fault overlap is possible.

---

It is a contradiction that the MFD (from factory in the 6R BlueGT) does not report the exact failure of some lights when the canbus warning light comes on πŸ€·β€β™‚οΈ... well, the 6R has several contradictions, even in the wiring diagrams (erWin) some diagrams are missing (a bit enigmatic 🀭).

e.g. Full wiring installation for Polo 6R "7L3" (without start/stop system) with factory bi-xenon. :?: πŸ˜‹
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by ciclo »

Sometimes we forget the simplest things, for example, until the diagnosed fault (DTC) is cleared with the diagnostic tool the light that caused the fault will not work.
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Re: Can't get rear fog-light to work on my 6R Blue GT after upgrading the BCM

Post by Aquavalver »

Hi! So went back to the retro fitting/coding guy as needed to pass the MOT so can drive legally. Tried the new coding for the removed front fog lights/DRL, but the rear fog light still did not work. Re-fitted the old BCM so could pass the MOT (of course the MFSW button lighting will not work now) and straight away the rear foglight worked again. Here are the various 3 scans:

Wednesday,05,July,2023,19:04:51:22001
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.3.1.0 (x64) HEX-NET CB: 0.4631.4
Data version: 20230421 DS346.2
www.Ross-Tech.com


VIN: WVWZZZ6RZDY265331 License Plate:


Chassis Type: 6R-VW25 (7E0)
Scan: 01 03 04 08 09 10 15 17 19 25 2E 44 56 61 77

VIN: WVWZZZ6RZDY265331 Mileage: 176130km-109442miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
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: Malfunction 0010
44-Steering Assist -- Status: OK 0000
56-Radio -- Status: Malfunction 1010
61-Battery Regul. -- Status: Malfunction 0010
77-Telephone -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CPTA) Labels:. 04E-907-309-V1.clb
Part No SW: 04E 906 016 Q HW: 04E 907 309 D
Component: 1.4l R4 TSI H08 5534
Revision: WCH08--- Serial number: CVN: 992D05A3
Coding: 00190032242411000000
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_ECM14TFS01104E906016Q 002008
ROD: EV_ECM14TFS01104E906016DL.rod
VCID: 302CFCA56B76A2137B-8064
VINID: 9E69EAAAA1A2A94A421850C3042E66C15C

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. User\6R0-907-37x-ESP90.lbl
Part No SW: 6R0 907 379 AS HW: 6R0 907 379 AS
Component: ESP9.0i front H02 0002
Serial number: --------------
Coding: 23DD4885232900C5C417126CC45200950905
Shop #: WSC 01383 785 00200
ASAM Dataset: EV_Brake1ESP90iBOSCH 003020
ROD: EV_Brake1ESP90iBOSCH_003_VW21.rod
VCID: 0F6E5F59D6089DEB42-805A

2 Faults Found:
0607 - Tire Pressure Warning
C102D 00 [137] - -
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 63
Reset counter: 73
Mileage: 175099 km
Date: 2023.06.24
Time: 20:32:03

0632 - Tire Pressure Warning
C102D 00 [137] - -
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 63
Reset counter: 73
Mileage: 174986 km
Date: 2023.06.24
Time: 18:27:06


-------------------------------------------------------------------------------
Address 04: Steering Angle (G085) Labels:* 6R0-959-654.clb
Part No SW: 6R0 959 654 HW: 6R0 959 654
Component: LENKW.SENSOR H07 0070
Serial number: 31031304650953
Coding: 01
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_LWSKLOVW25X 005001
ROD: EV_LWSKLOVW25X.rod
VCID: 7EB0129DE1A28463B9-802A

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 H12 0812
Revision: V0000000
VCID: 383CC4858B067A5333-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 7E0-937-BCM-V1.clb
Part No SW: 7E0 937 090 D HW: 7E0 937 090 D
Component: BCM PQ25 Max4 H82 0762
Revision: B9082001 Serial number: 8602 116190116
Coding: 25B4293F08E12400B32809302C2B0ED01FC0412E600000002000202A0000
Shop #: WSC 00046 648 00255
VCID: 2C14E8D54F5EC6F347-8078

Subsystem 1 - Part No: 1K0 955 559 AH Labels: 1K0-955-559-AG.CLB
Component: RLS 260313 05 54 0403
Coding: 02302D

Subsystem 2 - Part No SW: 6R0 959 802 BH HW: 6R0 959 802 BH Labels: 6R0-959-802.CLB
Component: J386__TSG_FT 003 8611
Serial number: KU0KU012121333461448
Coding: 1400A0

Subsystem 3 - Part No SW: 6R0 959 801 CF HW: 6R0 959 801 CF Labels: 6R0-959-801.CLB
Component: J387__TSG_BT 003 9612
Serial number: KU0KU029051551493259
Coding: 0400A1

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: 1K8 959 442 HW: 1K8 959 442
Component: E221__MFL-DC1 H04 0103
Serial number: 29170002240800037504
Coding: A40000

3 Faults Found:
01758 - Bulbs for Brake Lamps
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 2
Fault Frequency: 1
Reset counter: 73
Mileage: 176137 km
Time Indication: 0
Date: 2017.11.25
Time: 23:50:50

00901 - Back-Up Lamps
010 - Open or Short to Plus
Freeze Frame:
Fault Status: 01101010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 73
Mileage: 176137 km
Time Indication: 0
Date: 2017.11.25
Time: 23:51:16

01504 - Bulb for License-Plate Light (X)
010 - Open or Short to Plus
Freeze Frame:
Fault Status: 01101010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 73
Mileage: 176137 km
Time Indication: 0
Date: 2017.11.25
Time: 23:50:60


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446) Labels:| 6R0-919-475.clb
Part No SW: 6R0 919 475 C HW: 7E0 919 475
Component: PARKHILFE 4K H11 0013
Revision: -------- Serial number: 47361309300690
Coding: 108004
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_VW250ParkiAssis2 S01008
ROD: EV_VW250ParkiAssis2.rod
VCID: 3E30D29DA1224463F9-806A

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: VW10Airbag01X H10 0020
Revision: -------- Serial number: 003GX01NV6N7 Dataset Number: v00307236R0 0001
Coding: 003158
Shop #: WSC 01383 785 00200
ASAM Dataset: EV_AirbaVW10BPAVW250 A01001
ROD: EV_AirbaVW10BPAVW250_VW25.rod
VCID: 4AD88E4DEDEAF8C355-801E

Crash sensor for side airbag: driver side:
Serial number: 3575HRB401A50FP6BQAG

Front Passenger's Side Airbag Crash Sensor:
Serial number: 3585HRB400K50FBCEI8B

Rear Side Airbag Crash Sensor (on driver's side):
Serial number: 3515RRB401250G4AHOF5

Passenger side rear thorax airbag crash sensor:
Serial number: 3525RRB400C50FT2FQ8O

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1
Part No SW: 6R0 920 970 C HW: 6R0 920 970 C
Component: KOMBI H05 0607
Serial number: 00000000000000
Coding: 140A01
Shop #: WSC 00788 648 00255
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04716
ROD: EV_Kombi_UDS_VDD_RM09_004_VW23.rod
VCID: 3620CABD89128C2321-8062

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7E0-909-901.clb
Part No SW: 7E0 909 901 HW: 7E0 937 090 D
Component: GW-K-CAN TP20 H82 0762
Revision: B9082001
Coding: 002104
Shop #: WSC 00046 648 00255
VCID: 689C54C59B262AD363-803C

1 Fault Found:
01304 - Radio
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 66
Reset counter: 113
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:59:41


-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels:| 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 953 234
Component: IMMO H05 0607
Serial number:
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03709
ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
VCID: 6A982ECD8D2A18C375-803E

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: 7664620381
Coding: 010100
Shop #: WSC 00788 648 00255
VCID: 2A18EECD45AAD8C3B5-807E

1 Fault Found:
03138 - Input AUX IN
009 - Open or Short to Ground
Freeze Frame:
Fault Status: 01101001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 0 km
Time Indication: 0


-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 6Q0-423-156.clb
Part No: 6R0 423 156 C
Component: LenkhilfeTRW V278
Coding: 11241
Shop #: WSC 00788
VCID: 302CFCA5F776A2137B-8064

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio
Cannot be reached

-------------------------------------------------------------------------------
Address 61: Battery Regul. (J840) Labels:. 1K0-907-534.clb
Part No SW: 7E0 907 534 HW: 7E0 937 090 D
Component: Batt.regelung H82 0762
Serial number: 8602 116190116
Coding: F0001800
Shop #: WSC 00000 000 00000
VCID: 689C54C59B262AD363-803C

Subsystem 1 - Part No SW: 6R0 915 181 E HW: 6R0 915 181 E
Component: J367-BDM H08 0181
Serial number: 60094959322031188158

1 Fault Found:
01044 - Control Module Incorrectly Coded
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 25
Reset counter: 255
Mileage: 174973 km
Time Indication: 0
Date: 2017.11.14
Time: 14:57:37


-------------------------------------------------------------------------------
Address 77: Telephone (J412) Labels:| 7P6-035-730.clb
Part No SW: 7P6 035 730 J HW: 7P6 035 730 J
Component: TELEFON H15 3200
Revision: 1B001001 Serial number: 00007663598751 Dataset Number: 7P6035730J 0001
Coding: 0A01000000010101
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_UHVNA 002720
ROD: EV_UHVNA_002.rod
VCID: 393AC181B80C635BCC-806C

4 Faults Found:
9457427 - Left audio channel for speech/telephone
B104F 13 [009] - Short to GND
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

9457171 - Right audio channel for speech/telephone
B104E 13 [009] - Short to GND
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

9458195 - Control Module for Cellular Telephone
B1052 13 [009] - Open Circuit
[Bedieneinheit fΒΈr Handyvorbereitung (Drei Tasten Module): Unterbrechung]
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:36

13636352 - Control module not coded
U1013 00 [009] - -
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 46
Mileage: 174973 km
Date: 2023.06.24
Time: 14:57:37


End----(Elapsed Time: 01:42, VBatt start/end: 11.8V/12.0V. VIgn 12.0V)-----
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