UK-POLOS.NET - THE VW Polo Forum

Posted: **Wed Dec 09, 2020 10:38 pm**

Yes, if it's the wrong frequency, pairing will not succeed.

Posted: **Wed Dec 09, 2020 11:17 pm**

iichel wrote: Wed Dec 09, 2020 10:38 pm Yes, if it's the wrong frequency, pairing will not succeed.

Ok, will fit it all and back up/ restore settings and try and pair them.

I am struggling to understand how a UK T6 would be on the 315 frequency when the UK market is mainly 434. Which is where your statement about the odd/even seems to make sense to me.

Either way when it’s not raining here in the UK I’ll try it and report back.

Posted: **Thu Dec 10, 2020 3:28 am**

I have consulted with the masters of the universe and after having a good time telling urban legends and laughing out loud, I want to inform you without any speculation that the BCM 7E0937090 C has the correct frequency for your T5, it is 434 MHz.

If it were 315 MHz the reference number would be 7E0937190 C.

Keep in mind that the masters of the universe also make mistakes from time to time, but these mistakes are only reserved for joking with me, which I think is fantastic because I prefer their bad boy tricks instead of me having to always do the same things.

I take this opportunity

to remind the masters of the universe that I have not yet won the lottery and that it is convenient for it to happen because I am already reaching a point where I will no longer be happy if I win the lottery (too many laps in the sun

).

Posted: **Thu Dec 10, 2020 5:08 am**

pettman wrote: Tue Dec 08, 2020 8:58 am Thanks for the explanation, I will read again, but I am struggling to understand why those 2 wires are loose and not in the connector block? When in one wiring diagram they are in the red connector.

Because to me it seems like the T17/9 and T17/16 connect to 4 wires, 2 going to the new T10 auto light switch and 2 new ones going to the BCM.

EDIT

Think it just hit me... those 2 wires from the T17 block go directly to the 2 pin plug, and the new wires added in are the ones that connect the T10 switch pins to where they need to go.

Yes/no?

T17/9 is the output from the light switch to the rear fog light. Yes? yes.
- is removed from T17 and connected to the new wire coming from T73a/6 -> BCM Max output for rear fog light.

T17/16 is the light switch output signal 58 that powers various devices including license plate lights. Yes? yes.
We need to isolate this wire from the rest of the devices that it powers but in turn we need it to power the license plate lights.
- is removed from T17 and connected to the new wire coming from T73b/7 -> BCM Max output for license plate lights.
Other new wires in the wiring adaptation will do the functions of signal 58 for the rest of the devices previously fed from T17/16.
Among others,
- the new 'single' wire running from the red connector to T73a/45 -> BCM Max input for 58 signal.
- the new wire that goes from T73b/4 (BCM Max 58 signal output) to T6/3 of the interior lights regulator (dimmer).

Originals T73a/45 and T6/3 must be isolated witn cloth tape (eg.).

---

You must clearly differentiate between two parts, one is the wiring adaptation for the BCM Max, and the other is the wiring for automatic lights.
The union of these two parts with the red coupling makes the BCM receive the activation signals and send the power signals according to the indicated instructions, that is, according to BCM coding.

Posted: **Thu Dec 10, 2020 9:47 am**

ciclo wrote: Thu Dec 10, 2020 3:28 am I have consulted with the masters of the universe and after having a good time telling urban legends and laughing out loud, I want to inform you without any speculation that the BCM 7E0937090 C has the correct frequency for your T5, it is 434 MHz.

If it were 315 MHz the reference number would be 7E0937190 C.

Keep in mind that the masters of the universe also make mistakes from time to time, but these mistakes are only reserved for joking with me, which I think is fantastic because I prefer their bad boy tricks instead of me having to always do the same things.

I take this opportunity to remind the masters of the universe that I have not yet won the lottery and that it is convenient for it to happen because I am already reaching a point where I will no longer be happy if I win the lottery (too many laps in the sun ).

This is probably the best thing I've read all week!

Posted: **Thu Dec 10, 2020 11:21 am**

Here is my auto scan as of today. Anything glaring that should be fixed before I swap the BCMs over?

Code: Select all

Thursday,10,December,2020,11:11:09:56750
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64(VMWare)
VCDS Version 20.12.0.1 (x64)  HEX-V2 CB: 0.4529.4
Data version: 20201125 DS322.1
www.Ross-Tech.com


VIN: WV2ZZZ7HZCH089217   License Plate: S24 BWP
Mileage: 53940km-33516mi   Repair Order: 


Chassis Type: 7H-VN75 (6N0)
Scan: 01 02 03 04 08 09 15 17 18 19 25 56 0B

VIN: WV2ZZZ7HZCH089217   Mileage: 53940km-33516miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
18-Aux. Heat -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CCHA)       Labels:. 03L-906-022-CAA.clb
   Part No SW: 03L 906 019 DH    HW: 03L 907 309 K
   Component: R4 2,0L EDC   X43 9133  
   Revision: 26X43---    Serial number: 00000000000000
   Coding: 0125401A230400080000
   Shop #: WSC 66565 257 00032
   ASAM Dataset: EV_ECM20TDI01103L906019DH 002008
   ROD: EV_ECM20TDI01103L906019DG.rod
   VCID: 74B1D8C79E36F54B67A-8021

No fault code found.
Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0BT 300 045 M    HW: 0BH 927 711 C
   Component: DSG DQ500-7F  H05 1712  
   Revision: 00H05V01    
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021_A01_VW36.rod
   VCID: 3FDB47EBE7F066134A8-806B

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (-----)       Labels: 7E0-907-37x-MK25AXT.clb
   Part No SW: 7E0 907 379 J    HW: 7E0 907 379 E
   Component: ESP MK25A XT  H43 0109  
   Revision: 00H43001    
   Coding: 108724AD09AC089E24A49072AA6510
   Shop #: WSC 02756 790 49152
   VCID: 392F29F3F954482374C-806D

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 7E5-907-047.clb
   Part No SW: 7E5 907 047 BA    HW: 7E5 907 047 BA
   Component: Climatic-T5   H19 0404  
   Revision: 00001009    
   Coding: 0000000002
   Shop #: WSC 02756 790 50316
   ASAM Dataset: EV_ClimaticT5 A01003
   ROD: EV_ClimaT5Basis.rod
   VCID: 6FBBD7ABF710D6939A8-803B

1 Fault Found:
9480465 - Control Circuit for A/C Compressor 
          B10A9 11 [009] - Short to Ground
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 117
                    Mileage: 53807 km
                    Date: 2020.12.04
                    Time: 11:01:01


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7H0-937-08x-09.clb
   Part No SW: 7H0 937 087 H    HW: 7H0 937 087 
   Component: BCM T5GP H+4  H47 0256  
   Revision: BO047001    Serial number: 0429 003120305
   Coding: B8B0793A0A612403922848106C2B8DDC0000412F60840000300000000000
   Shop #: WSC 29469 123 1048576
   VCID: 392F29F3F954482374C-806D

   Subsystem 1 - Part No SW: 7E0 959 801 B    HW: 7E0 959 801 B  Labels: 7E0-959-80X-V1.CLB
   Component: J386__TSG_FT  002 3311 
   Serial number: --------------------
   Coding: 010000

   Subsystem 2 - Part No SW: 7E0 959 802 B    HW: 7E0 959 802 B  Labels: 7E0-959-80X-V1.CLB
   Component: J387__TSG_BT  002 3311 
   Serial number: --------------------
   Coding: 000000

   Subsystem 3 - Part No: 7E1 951 171 
   Component: DWA-Sensor 00  001 0104 
   Coding: 000000

   Subsystem 4 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 
   Coding: 000000

   Subsystem 5 - Part No: 7E1 951 171 
   Component: DWA-Sensor 00  001 0104 
   Coding: 000000

   Subsystem 6 - Part No SW: 3C8 959 537 D    HW: 3C8 959 537 D  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TK6  H07 0022 
   Serial number: 50000000000000789372
   Coding: E20000

1 Fault Found:
03304 - Response Closing Status of Rear Right Door 
            008 - Implausible Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 2
                    Fault Frequency: 19
                    Reset counter: 159
                    Mileage: 53807 km
                    Time Indication: 0
                    Date: 2015.04.26
                    Time: 20:39:45


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 C    HW: 7E0 959 655 C
   Component: VW10Airbag00P H06 0013  
   Revision: --------    Serial number: 003HM001WJ4C
   Coding: 000000000000000000000000000000003050
   Shop #: WSC 02754 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVN750 A01026
   ROD: EV_AirbaVW10BPAVN750.rod
   VCID: 363522CFC8CAA75B99E-8063

   Crash sensor for side airbag: driver side: 
   Serial number: 3495ZRB40690IAMCA9H$

   Front Passenger's Side Airbag Crash Sensor: 
   Serial number: 3505ZRB405T0IAMCI07$

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 7E0 920 970 E    HW: 7E0 920 970 E
   Component: KOMBI         H04 0305  
   Serial number: 00000000000000
   Coding: 760F00
   Shop #: WSC 02756 790 50316
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04113
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW36.rod
   VCID: 2C0100A70686ED8BFFA-8079

No fault code found.

-------------------------------------------------------------------------------
Address 18: Aux. Heat        Labels: None
   Part No: 7E0 815 071 B
   Component: J737__Standheizung  0605  
   Revision: 00085000    Serial number: 09019275F00000
   Coding: 0000031
   Shop #: WSC 02757 790 00000
   VCID: 2411E88762D625CB37A-8071

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 6N0-909-901-6R.clb
   Part No SW: 6N0 909 901     HW: 7H0 937 087 
   Component: GW-K-CAN TP20 H47 0256  
   Revision: BO047001    
   Coding: 042300
   Shop #: WSC 29469 123 1048576
   VCID: 70B9D4D7EAAEC96B832-8025

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          H04 0305  
   Serial number:               
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03009
   ROD: EV_Immo_UDS_VDD_RM09_VW23.rod
   VCID: 6A8DC6BFCCF233BBCD6-803F

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
   Part No SW: 6RD 035 187 B    HW: 6RD 035 187 B
   Component: Radio         541 5814  
   Revision: --------    Serial number: VWZZZ4H6290655
   Coding: 16000440040005
   Shop #: WSC 127395 840 08317
   VCID: 46D5520FB8AA37DB09E-8013

1 Fault Found:
00856 - Radio Antenna 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00111011
                    Fault Priority: 5
                    Fault Frequency: 4
                    Reset counter: 159
                    Mileage: 53807 km
                    Time Indication: 0
                    Date: 2015.04.27
                    Time: 10:55:12


End----(Elapsed Time: 01:47, VBatt start/end: 11.7V/11.7V. VIgn 11.7V)-----

Posted: **Thu Dec 10, 2020 1:56 pm**

Nothing to worry about, you can do the BCM swap now.

Intermittent faults could be due to temporary causes.
Clears all DTCs and checks if they return or are cleared.

For A/C fault --> http://wiki.ross-tech.com/wiki/index.php/B10A9

Posted: **Thu Dec 10, 2020 2:47 pm**

ciclo wrote: Thu Dec 10, 2020 1:56 pm Nothing to worry about, you can do the BCM swap now.

Intermittent faults could be due to temporary causes.
Clears all DTCs and checks if they return or are cleared.

For A/C fault --> http://wiki.ross-tech.com/wiki/index.php/B10A9

Brilliant thanks, will look into the AC fault at some point.

Do I need to do the 2 extra CAN wires for this BCM upgrade to be a success? Or is that part only when I come to retrofit the adaption and auto headlights?

EDIT

Yes I do

CAN lines

Essential when you upgrade to the following BCM Max.

7H0937090D, 7E0937090 /B/C... (I'm talking about the 434/3 Mhz used in Europe and other places, for the 315Mhz the Ref. number will be different)

Need to wait for my delivery of terminals and wires before I can fit the BCM

Posted: **Thu Dec 10, 2020 9:55 pm**

Greetings all,

I am very excited to have stumbled across this thread, it has answered so many questions!

A bit of background, I own two vans, a 2011 Transporter T5.1 and a 2012 Caravelle T5.1. I did own a 9N Polo once as well so hopefully I'll be allowed to stay.

When I first bought the Transporter I wanted to add cruise control and MFSW. Unfortunately my BCM was 086 suffix so I needed to upgrade, however 087 ones were very expensive so I tried with an 089 one from a Seat Ibiza which was much cheaper (7H0937089F). I was sensible and took details of my coding before, but the new BCM wouldn't accept the old coding so I had to manually change it and make it work. I eventually got everything working except the interior lights, and the cruise control has never worked. I now know for sure that I will need to add the extra can wires and power wires, this is no problem for me as I'm an electrical/electronic engineer and have done similar before. Just not as good as ciclo

Hopefully after adding the extra wires the cruise will work - I believe all the settings are enabled in VCDS and it 'sees' me pressing the buttons on the stalk, all the extra wiring was installed with a pre-made kit as well. I may be in touch for some assistance with my coding as there are still some errors present I believe relating to door sensors. I'm not too interested in auto headlights for this one, as I fitted the Chinese switch which seems to work ok (but not perfect)

I recently bought the Caravelle. This already comes with the rain/light sensor fitted and auto dimming mirror. I want the auto headlights OEM style for this one, so I will be making the loom as detailed in this post at some point. This Caravelle has 087 BCM from the factory, so I will be looking to upgrade this too. I may swap it for the 089 in my other Transporter, not sure yet. If I can get another 089/090 for a good price I may just do that, as the 087 will sell for a good price to pay for all these upgrades

In the future I will also be adding MFSW and paddle shift to this Caravelle, it has the lovely colour screen display and the Kenwood radio already connected to canbus as it displays parking sensors/climate control settings. I imagine these wires will be missing but I've already done that job on the other Transporter so no problems with doing that.

Thank you in advance for any support and I will keep updating with my progress.

Posted: **Fri Dec 11, 2020 5:40 am**

Welcome TheKeymeister, come in and get ready to have a good time with us.

With the BCM 'Max' 7H0937089F it is NOT necessary to add CAN lines for the instrument cluster (IC from now on). This BCM/GW model manages the IC through the powertrain CAN lines (arranged like this in your two T5s).
With this BCM 7H0937089F the interior lights work through pin T73b/1, ... instead of pin T73b/4, which is not present on this BCM 7H0937089F, ... T73b/4 is for newer PQ25 BCM models, 2013 ->.

This BCM 7H0937089F and according to your upgrade expectations it should work perfectly on either of your two T5.1s.
The BCM 087 from your 2012 Caravelle T5.1 would be perfect for your 2011 T5.1 according to your upgrade expectations.

In your 2012 Caravelle T5.1 and according to your upgrade expectations, it would be necessary to adapt the wiring for BCM Max and manufacture the wiring for automatic lights regardless of the BCM Max you install (7H0 or 7E0).

You already have the correct BCMs for all the upgrades you want to retrofit based on your introduction, there is no reason why they shouldn't get everything working correctly.

Posted: **Fri Dec 11, 2020 7:17 am**

Good morning,

So if I understand correctly, the only work I should need to do in my Transporter to fix the lights is to move T73b/4 to T73b/1? As for the other errors/faults/cruise not working, I suspect this is my bad coding, a lot of guesswork went into it. I am almost certain I have the long coding from the old BCM stored somewhere, and I can do a full scan with the current 089 one fitted to see what's going on.

I'll do this work first before touching the Caravelle just in case of any unexpected problems. Again, if I'm understanding correctly, I'll have to do the same pin move for the Caravelle interior lights, and the extra wiring for the headlight control etc, just not the new can wires to the instrument cluster.

Thank you!

Posted: **Fri Dec 11, 2020 3:01 pm**

Exactly.

The BCM 7H0937089F, and others like the 089D, or 088x, are somewhat special in terms of the GW operating SW and how they are built (HW).
For 089 F, D it is not necessary to install the new IC CAN lines in your T5s.

The rest of the circumstances for which the systems you retrofit do not work are due to improper coding, wiring installation or previous faults.
Post the autoscans... in the Logs folder of the VCDS program you must have the autoscans you have done and saved.

---
The evolution of PQ25 BCM Max (approximately and quickly):

7H0:
- 089D, 089F. (with internal GW)
and here we can include those dedicated to vehicles with Bluemotion systems but with external GW.
6R0:
- 088B, 088F. (the so-called 'Re4')

The first evolutionary leap, (they can also manage Bluemotion systems without external GW, that is, with internal GW)
7H0:
- 090, 090A, 090B, 090D.

The second and great evolutionary leap,
7E0:
- 089x, 090 B, C, D, F ...

There are even evolutions in the SW of all of them.
I do not comment on the dates of evolution because it also depends on the place on the planet where they were installed.

When retrofitting any of these BCM Max there are little details to keep in mind.

Posted: **Sun Dec 13, 2020 6:22 pm**

So I had some time today to have a play with the Transporter. There was a slight error in your info - it was T73a/4 that needed moving to T73a/1 (ie, the plug with the black shell), I have done this in a temporary manner as the terminals are a different size. This has however brought the interior lights back to life!

But it has also reminded me that the drivers door lock switch is faulty as the lights are on all the time. I'm fairly sure this is the problem as sometimes if I get inside the van through the drivers door and don't start it for a while, it locks itself. And also when I first got the van I now remember all the interior lights were actually switched off. Another job for the list to sort out...

Anyway, here's the details from my autoscans from before and after the BCM swap, the 'after' one is from just now. I am sure not all of the errors are from the BCM swap as I've done other work, including replacing the radio with an aftermarket one. I also added a towbar and did not use a dedicated wiring kit, I used a Teb7as bypass relay and I remember having to turn the van round with at least one rear light missing. I can do a re-scan after resetting codes and driving a little while if you like. I was unable to post them due to the filter thinking it was spam, so I have posted it on pastebin here

As for the Caravelle, I think I will purchase a new BCM Max for it and leave the 089 one in the Transporter if I can get it working. I can get either 7H0937089F or 7H0937090 for exactly the same price, as you describe the 090 as the "first evolutionary leap" would this one be somehow better? I don't mind about adding extra wires etc as I will need to take it to bits anyway for the other wiring so a little bit more won't hurt. But if it's just able to manage Bluemotion itself and that's all, I am not too fussed as it will never have that fitted. Thanks in advance!

Posted: **Sun Dec 13, 2020 8:40 pm**

TheKeymeister wrote: Sun Dec 13, 2020 6:22 pm ... There was a slight error in your info - it was T73a/4 that needed moving to T73a/1 (ie, the plug with the black shell), .......

.. please put everything back as it was... where did you get such an idea? you're going to break something by doing that ...

There is no mistake in my info.... I don't make mistakes.

T73b/1 or T73b/4 (the plug with the white shell) <-----------> T6/3 Dimmer.

Then we code the BCM in the correct way so that it works as it should ...

Just out of curiosity, who made so many changes to your BCM 089F coding compared to your BCM 086 coding?

---

To post autoscans in the forum or to be able to send private messages you must have at least 10 posts.

Posted: **Sun Dec 13, 2020 9:01 pm**

There were no pins at all in T73b (white shell) from 1 to 12, T73a only had a cable in pin 4 and nothing else until pin 10. I did a bit of googling and there was mention of T73a/4 controlling interior lights on a T6, so gambled with that one instead in T73a/1 (I did use a test lamp before actually making the connection

), and hey presto, interior lights now work. I'm fairly confident it's actually right - although my drivers door lock is faulty, once the vehicle is locked the interior lights go out after 10 seconds or so now, whereas before they didn't work at all on the 'doors open' setting, only on 'permanent on'. I can put it back as it was, but there's no cable T73b/1 or T73b/4 at all...I have photos if you like.

The coding was done by me, with a lot of guess work. I tried copying the coding across from the 086 BCM and it wouldn't work, VCDS wouldn't accept it somehow, so I tried each bit in turn until one of them wouldn't work, but that was unsuccessful too from what I remember. I think in the end I went through each bit with the long coding assistant and ticked the things I thought I had! This was back in March so my memory is a little hazy...

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