Hey, 

 

I'm in desperate need of help, i've tried every single forum looking for help, but i have failed to get it. A man in UK fabia facebook group sent me this link, since i was retrofitting a mfsw wheel.https://uk-polos.net/viewtopic.php?t=54171&fbclid=IwAR0uLvYVZjGjkhBt6AdbQDLQWQTETPDBWDH7ovEwhKqxM2qN5S2ELTenKqQ

 

After completing some steps, i encountered a step with bcm - connecting a wire to violet-white wire(lin-bus) in pin 17 of bcm(white big plug, not the black one). I've separated the connector into two pieces, and in the pin 17 found a yellow, or sand colored wire instead of the mentioned violet-white(its for lin-bus).

 

After connecting it, i thought i was done - since it was the last step before coding. I've reconnected the battery, turned on ignition aaaaand the horn is bleeping constantly, until you shut down the ignition. Buttons do not light up either on the msfw:(

 

Parts in my car:

BCM - 6r7937087H ( i was told to change it to 6r7937087P and apparently the mfsw should be good for coding?)    a

Steering wheel: it was the same as this, but no buttons, and i installed this : https://imgur.com/a/e6ZTUWM

I can only speculate that you have read the pin numbering wrongly.

On mk2 Fabia I think the LIN connection at pin 17 should be found to be a grey/white wire.

@Wino thats what eddie said!  Now im sure i have done something wrong ahaha

@Wino yesh its white black. The wire colors are s bit faded.

Well, still have no clue why is the horn constantly on.

7 minutes ago, masilickas said:

Well, still have no clue why is the horn constantly on.

 

I have no clue why you're bothering to try and fit the wrong steering wheel for a few silly buttons and switches.

2 hours ago, sepulchrave said:

I have no clue why you're bothering to try and fit the wrong steering wheel for a few silly buttons and switches.

That's the thing with cars though - what may be silly to one person is important to another.

Hopefully others can come to assist the OP. 👍

Are you working with the correct wiring diagrams?

 

I looked into retrofitting heated seats from a Polo and found that the Polo and Fabia BCMs are different in function and pin outs. You can use clues from one car to the next but carbon copy is tricky.

@26DIPP im sure its wired in properly heh:( i might know the problem, its probably two wire pins touching together, im pretty sure i ripped some heat shrink when i installed stuff back. Ill update.

 

@sepulchrave simply because i want it  its my first car and i thought i'd love that upgrade, since i've gotten the wheel quite cheap.

 

 

8 hours ago, masilickas said:

@sepulchrave simply because i want it  its my first car and i thought i'd love that upgrade, since i've gotten the wheel quite cheap.

 

Dude, I'm happy for you to be happy but what I don't want is for you to break your first car trying to stick silly crap all over it, you should be driving it, not breaking it.

 

Spend the money on fuel and go drive it.

14 hours ago, john999boy said:

That's the thing with cars though - what may be silly to one person is important to another.

Hopefully others can come to assist the OP. 👍

 

Essential intervention there, doesn't feel stalky at all, just point that thing somewhere else when you're talking to me 

9 minutes ago, sepulchrave said:

 

Dude, I'm happy for you to be happy but what I don't want is for you to break your first car trying to stick silly crap all over it, you should be driving it, not breaking it.

 

Spend the money on fuel and go drive it.

No need to be grumpy, its not stickers or a bodykit on a fabia, its a steering wheel. Besides, i have money for fuel, no worries

 Do you happen to know, is my current bcm enough(6r7937087H)? or should i upgrade to the mentioned?(6r7937087P). By the way, is this 7h0937089B and this 6r7937087P the same?

That UK member on the facebook groups would be me! 

 

If you are not getting much help the best thing you can do next is to download the wiring diagram for your car then double check the PIN / Colour of the wire you have connected into is the correct wire and what it corresponds to on the fabia wiring diagram. 

 

You will then be able to find the correct pin. 

 

https://cardiagn.com/2007-2014-fabia-current-flow-diagram-11-2010/

13 hours ago, JGrindel said:

That UK member on the facebook groups would be me! 

 

If you are not getting much help the best thing you can do next is to download the wiring diagram for your car then double check the PIN / Colour of the wire you have connected into is the correct wire and what it corresponds to on the fabia wiring diagram. 

 

You will then be able to find the correct pin. 

 

https://cardiagn.com/2007-2014-fabia-current-flow-diagram-11-2010/

Hello! Yes i see😅

 

i have indeed checked the diagrams, apparently my pin 17 was white-black, in fabias its not/not always violet-white, as i was told. My cable colors are a bit faded, probably because of age or rubbing with other cables. At first i thought it was yellow-black, but that was my fault. I was looking at cables with a yellow-ish flashlight, so it made me think otherwise. Everything is wired correctly, waiting for my “repair wires”, i think the pins i soldered on to the cable were slightly too short(at least one of them) or they are protruting a bit too much and touching eachother. 
 

 

ill update a few days later, when i put in the genuine vw pins for the connector!

 

about the bcm - EDDIE-NL has told me, that he doesn’t see a reason for the bcm to be faulty/not suitable for the retrofit im doing, it should be good

 

thank you for help everyone who is following.

 

 

I have an update for you guys!

Whoops, didn't mean to send only that haha. I installed the vw repair wires instead of  pins i've picked up before. Apparently the pins i used in the start did not make a proper connection with the connector (picture uploaded down below) . After properly connecting everything up, the horn was not bleeping anymore when i put the fuse back in haha. Tommorow im heading to a friend, who has a vcds cable and knows some coding ( retrofitted a newer mfsw into his passat b6, did the goldendot cluster retrofit and similar stuff..) as much as i've gathered information, and by looking at the 6R polo tutorial that does not look hard at all. I will update you all tomorrow about the coding, and maybe even the results. Have a good one

So i’ve ran into a problem again, most likely the wiring is faulty. Scanned the fabia with vcds, it showed no connection with the Steering wheel module (16). Also, another fault was 00588 or something like that “driver airbag resistance too high”. I’ve checked the airbag, its not the faulty part( i’ve tried plugging in my old airbag with harness from the other airbag and etc, airbag is not faulty.)

Aaand here we go, today is the day:) resoldered the connection i was suspecting, turned on vcds, messed around, and the module 16 (steering wheel) was causing my problems. It was showing “no communication with module”. I ticked it off in the gateway list and almost everything started working. The right side slider seems to do nothing, and i have the same airbag issue (resistance too high) i’ve tried putting on my old one, nothing changes. Besides that, everything is complete! Won’t mess around with the airbag for now, since its not bothering me as much yet, but i will still keep you updated about the slider. Have a good one!

P.S. The module 16(steering) was probably ticked on before accidently!