Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Coding a secondhand Airbag ECU, can anyone help please?

Discuss problems you have had or are having with your Z4
User avatar
kis
Lifer
Lifer
Posts: 4536
Joined: Wed Jul 20, 2016 2:33 pm
Location: Surrey / West Sussex Boarder

Coding a secondhand Airbag ECU, can anyone help please?

Post by kis » Fri Nov 22, 2019 4:30 pm

I think the guy that did mine used Tool32. I'm sure he didn't search for the part number... the module was selected from menus or a dropdown. I know the module number of mine, because I used to search for it daily on various sites. 6935920.

How about searching for the module? "Control Unit Airbag" or "Safety Information Module" those are what Real OEM refer to them as...
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Sat Nov 23, 2019 1:53 am

Many thanks KIS, I think I'm getting close, in Tool32 I opened STVR85.prg and double clicked on c_fg_lesen to read the information on the module, on the results window I can see the invalid VIN listed next to FG_NR. I confirmed this by opening STVL85.prg and seeing my VIN in that location. Hopefully all I need to do is write out the correct VIN to the module, restart the system time and clear the errors. I'm approaching this slowly so as not to mess anything up, will let you know the outcome, I'm very optimistic!
IMG_4602.JPG
Attachments
IMG_4602.JPG
IMG_4602.JPG (283 KiB) Viewed 2223 times

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Sat Nov 23, 2019 10:31 pm

So that didn't work, trying to write my VIN to the STVR module is resulting in the error message:

error_ecu_conditions_not_correct_or_request_sequence_error

Back for more research..... :headbang: :headbang:

tomjonesBT33
Member
Member
Posts: 75
Joined: Sun Oct 13, 2019 1:34 am

Coding a secondhand Airbag ECU, can anyone help please?

Post by tomjonesBT33 » Sun Nov 24, 2019 1:37 am

waynoh - I searched through my /data directory and could not find your part number in any of my .HIS files. Before I got mine working, I did scour the web looking for older software versions to gather older daten and other files. Maybe give that a try...
2004 Z4 2.5i
2006 Z4 M Roadster
2017 X1 xDrive28i

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Tue Nov 26, 2019 2:13 am

Tomjones20194 - Thanks I'e been scouring for days to no avail, still looking for older files, not even sure how old I would need.

User avatar
kis
Lifer
Lifer
Posts: 4536
Joined: Wed Jul 20, 2016 2:33 pm
Location: Surrey / West Sussex Boarder

Coding a secondhand Airbag ECU, can anyone help please?

Post by kis » Wed Nov 27, 2019 9:45 am

Have you tried disconnecting and re-connecting the module? If there was any sort of water damage or rust build up then maybe the contacts aren't clean?
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Thu Nov 28, 2019 5:16 pm

Tools 32 communicates with the module, it returns information with the original VIN, INPA can also clear the error from the module. Tool32 is unable to write the correct VIN to the module and WinKFP doesn't have the correct part number ion the daten file. Is there anywhere to buy the correct daten file for the car?

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Tue Dec 03, 2019 2:48 am

I'm beginning to think it could be a configuration problem or an issue with the cable, I tried updating with WinKFP and received the following errors. Does anyone have any thoughts?
Attachments
WinKFPError.JPG
WinKFPError.JPG (219.12 KiB) Viewed 2094 times

User avatar
kis
Lifer
Lifer
Posts: 4536
Joined: Wed Jul 20, 2016 2:33 pm
Location: Surrey / West Sussex Boarder

Coding a secondhand Airbag ECU, can anyone help please?

Post by kis » Tue Dec 03, 2019 12:54 pm

Reinstall the program (or maybe all 3 programs) and take it from there?
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

tomjonesBT33
Member
Member
Posts: 75
Joined: Sun Oct 13, 2019 1:34 am

Coding a secondhand Airbag ECU, can anyone help please?

Post by tomjonesBT33 » Sat Dec 14, 2019 12:17 am

waynoh - does INPA work correctly?
2004 Z4 2.5i
2006 Z4 M Roadster
2017 X1 xDrive28i

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Wed Dec 18, 2019 3:03 am

Sorry just saw this reply INPA seems to work correctly, it clears errors as it should. Just received a new cable from BimmerGeeks but haven't had a chance to try it out yet.

Thanks

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Sun Dec 22, 2019 10:56 pm

Received a new cable, same results, yes INPA works correctly, I was able to clear the airbag light with inpa but it returns because the VIN isn't updated in the replacement module. :headbang: :headbang: :headbang:

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Mon Dec 30, 2019 7:56 pm

Something is wrong with the ECU entry I have in WinKFP, if I select the SBSR85 ECU family it gives me 6948086 or 6948088. When I look these numbers up on REALOEM they come back as B-pilar modules and not door modules. Does anyone know why this is happening?

User avatar
kis
Lifer
Lifer
Posts: 4536
Joined: Wed Jul 20, 2016 2:33 pm
Location: Surrey / West Sussex Boarder

Coding a secondhand Airbag ECU, can anyone help please?

Post by kis » Mon Dec 30, 2019 8:42 pm

Can’t help answer your question, but perhaps the ECU fault isn’t the airbag module (using your original one)? But another components within the airbag system?

Or the second hand module you bought is busted? Just some food for thought?
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
X6 - E71

waynoh
Newbie
Newbie
Posts: 14
Joined: Fri Oct 25, 2019 12:09 pm

Coding a secondhand Airbag ECU, can anyone help please?

Post by waynoh » Wed Jan 08, 2020 2:13 pm

Reinstalled the original module back in the right door and read codes again, just returns STVR module fault. I have searched high and low and I am unable to find any E85 daten files that contain any part numbers that refer to an airbag module in the doors. Found this below in another post and was wondering if there are different daten files for US vs Euro spec cars. Does anyone know the answer to this question?


I have been doing some digging on this today and think I can now actually answer my own question, at least partially.
According to RealOEM the STVL/R are sensors in the doors (not to be confused with the actual airbag modules in them). However they are not fitted to Euro models just US ones. There are other key differences in the airbag setup on US cars such as two stage airbags and knee airbags.

Post Reply