VW Polo DIY: Upgrading the BCM (Body Control Module)

graaja · 14th November 2018, 11:33

Quote:

Originally Posted by maheshmenon

Did an auto scan and what left me really surprised is that the BCM in my Jan 2014 GT TSI is 937-087 (High) where as Gannus was just 3 months older with a 937-086 ??

Isn’t there any uniformity in VW assembly line or do they just fix the parts whatever comes in their hand from the parts bin ?

I am sure VW is not taking whatever comes to their hands from the parts bin, but the way they keep adding features every 3 months, it sure looks like that

It is quite possible that your car had some feature upgrades which were not there in Gannu's car which required the 087 BCM. I think they have been using the 087 BCM for a few years now.

maheshmenon · 14th November 2018, 14:11

I’m not too sure on any feature updates since both are the “pre-face lift” model. The only difference is the ESP on mine since it’s a TSI

vranjan21 · 15th March 2020, 13:32

Hi Gannu,

I have skoda fabia 2012 model with manual central lock (no factory fitted remote lock). Later showroom guys installed autocop XS module for remote locking. Everything was working fine till last year, somehow autocop stopped working and i thought instead of going new autocop, i should look for new BCM with remote control and as per your blog i got 6R0937086H (Used one from ebay.ge)
Old BCM model was 6RU937084.
I have removed, faulty autocop module. and followed your instructions to replace BCM, everything working fine except remotes are still not working (tried autocop remote and another aftermarket remote to adapt). I trying adapting it but in vain. Any Idea.

It is just BCM which is enough to get remote control functionality or something else is required.

graaja · 15th March 2020, 15:23

Quote:

Originally Posted by vranjan21

...
I have removed, faulty autocop module. and followed your instructions to replace BCM, everything working fine except remotes are still not working (tried autocop remote and another aftermarket remote to adapt). I trying adapting it but in vain. Any Idea.

It is just BCM which is enough to get remote control functionality or something else is required.

I don't think autocop remote or aftermarket remote will work with the BCM. You will need Skoda remote. Also, the remote key comes with immobilizer which requires programming of the instrument cluster as well. So, I doubt if you will be able to get OE remote control functionality with just BCM upgrade.

vranjan21 · 16th March 2020, 19:12

Thank you @graaja for enlightening about aftermarket key-fob. I will try to grab used one and will see if that works.

graaja · 16th March 2020, 19:58

Quote:

Originally Posted by vranjan21

Thank you @graaja for enlightening about aftermarket key-fob. I will try to grab used one and will see if that works.

I don't know the details, but I think you will definitely need VCDS coding to make this work. Also, if the car does not have necessary BCM wiring to control the central locking, then this may not work.

Try to search international forums if someone has already done this hack.

vranjan21 · 16th March 2020, 20:45

Quote:

Originally Posted by graaja

I don't know the details, but I think you will definitely need VCDS coding to make this work. Also, if the car does not have necessary BCM wiring to control the central locking, then this may not work.

Try to search international forums if someone has already done this hack.

VCDS is not an issue, I do have it and able to recode whole BCM from old to new (6RU937084A to 6R0937086H).

I assume, wiring from BCM to central lock should not be an issue, as central lock is already there and BCM is able to control central lock, i have tested it via VCDS - output test (able to control lock/unlock via VCDS).

It should be just BCM which sends command to central lock and remote give commands to BCM. correct me, i may be wrong :(

Now, if i try to grab another 2nd hand remote what should be configuration, as replaced BCM i got it from Germany (6R0937086H, most probably came out of VW polo car, and what FCC ID and MHz will work.

I just want to give a try with an old Key Fob (again transponder/Immobilizer is not an issue here) just the remote lock/unlock is my concern.

I'm pasting VCDS scan just for ref., if anything knock towards fix.

Monday,16,March,2020,15:23:39:00008
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.0.2 (x64)
Data version: 20190529 DS308.0
www.Ross-Tech.com

VIN: TMBFRA5J2CG010404 License Plate: 6638_16MAR2
Mileage: 72580km-45099mi Repair Order:

Chassis Type: 5J-SK25 (6N0)
Scan: 01 09 17 19 25 44

VIN: TMBFRA5J2CG010404 Mileage: 72580km-45099miles

01-Engine -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
44-Steering Assist -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine (J623-CJLA) Labels: None
Part No SW: 03E 906 019 F HW: 03E 906 019 F
Component: SIMOS11.2 H03 9493
Revision: --H03--- Serial number:
Coding: 00110002030000000000
Shop #: WSC 01234 785 00200
ASAM Dataset: EV_ECM12MPI02103E906019F 001005
ROD: EV_ECM12MPI.rod
VCID: 275D4D9C5EED1C77F0-8072

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 6R0-937-08x-09.clb
Part No SW: 6R0 937 086 H HW: 6R0 937 086
Component: BCM PQ25 M++4 H46 0230
Revision: BD046001 Serial number: 0392 036110453
Coding: 73980B1808010040003000002E0810000040400F6000004000 0000000000
Shop #: WSC 124697 483 00190
VCID: 4189F304D889C247DE-8014

Subsystem 1 - Part No SW: 6R0 959 802 M HW: 6R0 959 802 M Labels: 6R0-959-802.CLB
Component: J386__TSG_FT 002 3211
Serial number: --------------------
Coding: 030000

Subsystem 2 - Part No SW: 6R0 959 801 P HW: 6R0 959 801 P Labels: 6R0-959-801.CLB
Component: J387__TSG_BT 002 3211
Serial number: --------------------
Coding: 020000

Subsystem 3 - Part No SW: 6R0 959 811 D HW: 6R0 959 811 D
Component: J388__TSG_HL 002 3211
Serial number: --------------------
Coding: 020000

Subsystem 4 - Part No SW: 6R0 959 812 D HW: 6R0 959 812 D
Component: J389__TSG_HR 002 3211
Serial number: --------------------
Coding: 020000

2 Faults Found:
03431 - Activation of Left Parking Light
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 2
Fault Frequency: 1
Reset counter: 43
Mileage: 72580 km
Time Indication: 0
Date: 2014.08.07
Time: 04:05:58

03432 - Activation of Right Parking Light
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 2
Fault Frequency: 1
Reset counter: 43
Mileage: 72580 km
Time Indication: 0
Date: 2014.08.07
Time: 04:05:58

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:* None-SRI1
Part No SW: 5JF 920 801 HW: 5JF 920 801
Component: KOMBI H05 0103
Serial number: 00000000000000
Coding: 110000
Shop #: WSC 01234 785 00200
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04120
ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
VCID: 79F95BE4F8D95A87D6-802C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 6N0-909-901-6R.clb
Part No SW: 6N0 909 901 HW: 6R0 937 086
Component: GW-K-CAN TP20 0230
Coding: 032300
Shop #: WSC 124697 483 00190
VCID: 70EF66C0A3A31BCF61-8024

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels: None
Part No SW: 5JF 920 801 HW: 5JF 920 801
Component: IMMO H05 0103
Serial number:
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03009
ROD: EV_Immo_UDS_VDD_RM09.rod
VCID: 79F95BE4F8D95A87D6-802C

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J792) Labels:* 6Rx-909-144-V1.clb
Part No SW: 6RF 909 144 J HW: 6RF 909 144 J
Component: EPS_ECU H26 0401
Coding: 0000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_SteerAssisUDSNSK 005005
ROD: EV_SteerAssisUDSNSK.rod
VCID: 53A5C94C3AF540D77C-8006

No fault code found.

End-------------------------(Elapsed Time: 01:22)--------------------------

vranjan21 · 3rd June 2020, 17:21

Quote:

Originally Posted by graaja

I don't think autocop remote or aftermarket remote will work with the BCM. You will need Skoda remote. Also, the remote key comes with immobilizer which requires programming of the instrument cluster as well. So, I doubt if you will be able to get OE remote control functionality with just BCM upgrade.

After long wait period due to lockdown. I received one key fob from AliExpress today and I tried adapting it via VCDS and this works like charm. Thank you once again GRAAJA for giving me hint of getting skoda/VW key fob to work. Cheers !!

graaja · 3rd June 2020, 17:26

Quote:

Originally Posted by vranjan21

After long wait period due to lockdown. I received one key fob from AliExpress today and I tried adapting it via VCDS and this works like charm. Thank you once again GRAAJA for giving me hint of getting skoda/VW key fob to work. Cheers !!

That is fantastic. Congratulations in getting the remote control to work

14th November 2018, 14:11	#47
maheshmenon BHPian Join Date: Aug 2008 Location: IN Posts: 136 Thanked: 41 Times View My Garage	Re: VW Polo DIY: Upgrading the BCM (Body Control Module) I’m not too sure on any feature updates since both are the “pre-face lift” model. The only difference is the ESP on mine since it’s a TSI
	() Thanks

15th March 2020, 13:32	#48
vranjan21 BANNED Join Date: Dec 2019 Location: Bangalore Posts: 9 Thanked: 2 Times	Re: VW Polo DIY: Upgrading the BCM (Body Control Module) Hi Gannu, I have skoda fabia 2012 model with manual central lock (no factory fitted remote lock). Later showroom guys installed autocop XS module for remote locking. Everything was working fine till last year, somehow autocop stopped working and i thought instead of going new autocop, i should look for new BCM with remote control and as per your blog i got 6R0937086H (Used one from ebay.ge) Old BCM model was 6RU937084. I have removed, faulty autocop module. and followed your instructions to replace BCM, everything working fine except remotes are still not working (tried autocop remote and another aftermarket remote to adapt). I trying adapting it but in vain. Any Idea. It is just BCM which is enough to get remote control functionality or something else is required.
	() Thanks

16th March 2020, 19:12	#50
vranjan21 BANNED Join Date: Dec 2019 Location: Bangalore Posts: 9 Thanked: 2 Times	Re: VW Polo DIY: Upgrading the BCM (Body Control Module) Thank you @graaja for enlightening about aftermarket key-fob. I will try to grab used one and will see if that works.
	() Thanks