[Brendanssound]

Hey guys,

Installed a Business CIC unit in my 2005 E90 (Previously it never came with idrive at all until i retrofitted an idrive dash, MASK unit, then a CCC unit, and now MID_CIC $606 (Business CIC Navigation)

Install was pretty painless.. basically just plug and play.. It even started to try and resume the previous owners navigation somewhere in Tasmania before the car was wrecked. Even my controller started behaving itself (Guessing that was a software issue with the much older CCC unit)

I was originally going to be happy with that and having AUX audio but i could not for the life of me SG_Codieren the MULF or the later MULF2 replacement from my spare parts car.. Which meant my AUX showed up but i couldn't change the volume (stuck at 0)

So i decided to just buy a Combox (i was going to eventually anyway) and use Bluetooth..

Problem is i can't SG_Codieren the Combox either.. I keep getting this error:

[12:45:22.070] [2020-10-27] [SERIE]   2020       Error LFCDHDIA.CPP (A_E65R.IPS/IPO) CDHapiResultText     1
[12:45:22.070] [2020-10-27] [SERIE]      SG antwortet nicht  IFH-0009: SG nicht angeschlossen oder meldet sich nicht  CMEDIAR

[12:45:22.184] [2020-10-27] [SERIE]   2020       Error    COAPI2.CPP    coapiRunCabd     6
[12:45:22.184] [2020-10-27] [SERIE]      SG antwortet nicht  CODIERINDEX_LESEN

[12:45:23.607] [2020-10-27] [SERIE]   2020       Error LFCDHDIA.CPP (A_E65R.IPS/IPO) CDHapiResultText     1
[12:45:23.607] [2020-10-27] [SERIE]      SG antwortet nicht  IFH-0009: SG nicht angeschlossen oder meldet sich nicht  CMEDIAR

[12:45:23.722] [2020-10-27] [SERIE]   2020       Error    COAPI2.CPP    coapiRunCabd     6
[12:45:23.722] [2020-10-27] [SERIE]      SG antwortet nicht  SG_CODIEREN

I've managed to default code the MCIC by changing the build date to #0910 on CAS and NFRM.. I can see "Bluetooth Audio" as a source but it just stays stuck in "Please wait" if i try and get into it.

Issue seems to be communication with the Combox in the boot.. And seems to be the exact same issue as i had with MULF2

Combox itself is powering on (i can see the red light if i remove the MOST connector)

So far the only idea i've got is during the transfer from the mulf connector to the 26 pin combox connector i was left with 3 wires that were not on any diagrams i could find https://photos.app.goo.gl/WX93oWXsDxBgXpyBA

Does anyone know where these wires run to on the other end?

[ctuna]

https://www.e90post.com/forums/showt...ghlight=combox

entry 12 in the above thread for wiring.
mulf and combox aux pins are not in the same place.

there is a certain level of firmware the nav must have and it has to be one of the newer
navs to work with a combox for it to do streaming.

If you do a search for combox there is more info.

[Brendanssound]

Originally Posted by ctuna

https://www.e90post.com/forums/showt...ghlight=combox

entry 12 in the above thread for wiring.

Yep that's the one i used to do wiring.. But you'll see there's nothing about a light blue, or white/black wire.. It DOES have the dark blue/black wire.. But does not say where it goes on Combox

Might also help to mention my car never had a TCU and i purchased a combox media. No logic amp either.. HiFi Only

Originally Posted by ctuna

there is a certain level of firmware the nav must have and it has to be one of the newer navs to work with a combox for it to do streaming.

If you do a search for combox there is more info.

Business CIC Unit is from a 2009 320i E90
Combox is a BN2000 from a 2010 E90

But all that said would a firmware issue even mean that i cant even read from the Combox? Given i had a similar error with the MULF it almost seems like the issue is either in wiring or VO Combination?

I did transplant the entire loom from my parts car when i did the idrive dash install.. Don't remember anything being left disconnected..

[ctuna]

Do you have Inpa I would try functional jobs to see if it reads the hardware.
F2 and F3 .

[Brendanssound]

Sorry it's late.. Had to do a Windows update which broke my k-dcan latency setting and made my CAS unreadable (Scared the crap out of me, Thought i bricked my car..Thanks Windows!)

Originally Posted by ctuna

Do you have Inpa I would try functional jobs to see if it reads the hardware.
F2 and F3 .

[Brendanssound]

My VO:

#0910
$205
$240
$249
$2CY
$321
$354
$403
$428
$431
$441
$459
$465
$497
$4AB
$4AE
$507
$520
$521
$534
$544
$548
$563
$606
$614
$615
$644
$676
$6AL
$6FL
$6NS
$6VC
$7RP
$7RS
$810
$818
$823
$825
$853
$864
$876
$880
$8SM
$8SX
$925
$9AA
%0A22
&LCSW
*VB16
-B070
-IALT

[Brendanssound]

May have found my issue myself..

Given the issue is not power.. Because i can see the red light in the most connection socket of the Combox & MCIC. And assuming the extra unknown wires from the old MULF connector to the new 26 pin for the combox are NOT K-Can wires..

Would i be right in assuming the issue is likely the MOST wiring? Since I'm guessing that's how the car communicates with the MULF/Combox?

If so.. It makes perfect sense.. My CD changer had stopped working ages ago but i could still eject/see power at the CDC but it never would communicate with the CCC (couldn't pick a CD unless it was in the CCC itself) But i also never cared because radio was good enough.

It also explains why AUX on the MULF never worked despite the power and earth wiring being fine.

I'm guessing all these devices use MOST and i never really noticed that wasn't working because nothing in my multimedia systems needed it for what i was doing...

And if i am right.. Where the hell am i going to find replacement fibre optic cabling? I stupidly threw the spare loom out when i changed it over from the parts car.

[ctuna]

Yeah the most ring has to be intact for there to be sound in a Logic 7 system.
But it looks like your setup is not reading the Mulf or combox at all .
Maybe it's just passing the signal on. Break the loop and see if the sound
disappears to check. Could be its not reading it because of the production date
issue if the option did not exist in the production year of your car , but I know
this works with a mulf 2 hi as others have done it quite a bit.

Also when you change the VO you must still default code the module from the VO
if you haven't already done that.

Inpa should read the Hardware no matter what I thought though.(as long as it is connected)
CDC changer fiber could be repurposed for the Combox maybe.
Also any new hardware module must be added to the Most Loop at the Most Hub.

[Brendanssound]

Originally Posted by ctuna

Yeah the most ring has to be intact for there to be sound in a Logic 7 system.

I use a HiFi system.. So no need for the fiber optics.

Originally Posted by ctuna

But it looks like your setup is not reading the Mulf or combox at all

Exactly.. So how are they MEANT to communicate? So far i've got in the Combox
1 12v Red Wire
1 Ground Wire
and 3 other wires all for the AUX..

But how does the module actually talk to the car and let the other systems know its there? If those extra wires are something like k-can wires then sure.. But I'm guessing that's not the case since they seem to be so unimportant that I cant even find any documentation on them.

Originally Posted by ctuna

Maybe it's just passing the signal on. Break the loop and see if the sound disappears to check.

No logic system in mine so it wont hurt the audio at all. But i did go downstairs and probably woke some people up trying to reach in to my car and see if the light is even passing through on the cable side of the fiber connector.. it is not by the looks.. Not even from under the passenger footwell (For you Americans this is actually the drivers footwell I'm talking about)

I'm hoping I'm wrong because if I'm right it means i need to rip up the seats, carpet, most of the center console to run new fiber optics.. Not to mention find fiber optic cabling or a whole new radio harness.

Originally Posted by ctuna

Also when you change the VO you must still default code the module from the VO
if you haven't already done that.

This is my main issue.. Can't SG_Codieren the MULF or the Combox.. can't even read from the module at all..

[ctuna]

If there is not light coming out of the Head Unit to start with it's not going
anywhere at all.

Most test point
http://www.e90post.com/forums/showthread.php?t=347222
Most
http://www.e90post.com/forums/showthread.php?t=727663
http://www.e90post.com/forums/showthread.php?t=347222
https://www.google.com/search?q=BMW+...VCkMqy2aCK09M:
http://www.1addicts.com/forums/showt...php?p=19256760

The parameter in the Head Unit called ring status must be set to aktiv to turn on the most bus.
In Us cars it's always set to aktiv as they all came with at least a TCU.
In Europe some radios and I assume Idrives come with no Most Bus circuitry at all
don't know about Australia.
Also the I thought the Can Bus connected to all the modules in the Trunk to .

[Brendanssound]

Can confirm there's light at the head unit itself.. Just not going anywhere from there by the looks..

Same story at the Combox.. Light is there at the actual module.. but does not show on the other end of the cable

I have had a quick read through some of those links already and in most of those cases there was some kind of light coming through the cable so they were able to diagnose and terminate where needed.. I haven't checked the CDC yet but so far i have no light at cable from combox or from headunit to pass footwell..

Pretty sure my fiber optics are broken.. Can't say I'm that surprised really.. I never knew they even were fiber optics when i transferred the whole loom over (Still quite new to BMWs) So i likely did not take much care when handling.

What I'm curious to know is

a) Am i right in saying this is why the NCS Expert cant communicate with the Combox or Mulf2 before it.. This just makes sense to me since power and ground wires are just powering the unit.. but nothing there to communicate with it.

b) What now? Can i buy fiber optic cable and try and patch it up? Do i need to buy multiple lengths for each section or can i buy 1 long cable to splice it up to the existing ends somehow? Any recommendations on where to find the stuff?

[Brendanssound]

Originally Posted by ctuna

The parameter in the Head Unit called ring status must be set to aktiv to turn on the most bus.
In Us cars it's always set to aktiv as they all came with at least a TCU.
In Europe some radios and I assume Idrives come with no Most Bus circuitry at all
don't know about Australia.

Well i do have the MOST bus showing in Inpa so i assume its active?

Originally Posted by ctuna

Also the I thought the Can Bus connected to all the modules in the Trunk to .

If anyone can confirm or deny this it would be greatly appreciated..

My thinking is there's meant to be some way for it to communicate.. In the same way the controller has power/earth and K-CAN Hi and Low for the actual messages to be sent to the headunit based on which way you turn the jog wheel or which button you press

With that in mind.. My Combox has power, earth, aux power, aux earth, and aux balance.. Nothing about Can..

So either those mystery wires left on the old plug are the kcan wires.. (i already know one of them is likely just the phone cradle) or the actual communication between the combox and the rest of the system goes over fiber optics

[ctuna]

You use to be able to look up the block diagram of the Combox and all the other
modules on tis before they blocked it . Now you have to have a working copy or
Ista D or Ista plus with the correct database to verify this.

https://www.google.com/url?sa=t&rct=...UCkQMbGLo9CbCN

https://www.e90post.com/forums/showthread.php?t=1535685

Both of these indicate a Can bus connection.

There should be a light coming from one side of the connector at the back of the Idrive and at the
Test Point under the dash.

https://www.bimmerfest.com/threads/c...uccess.772784/

[Brendanssound]

https://www.e90post.com/forums/showt...1535685&page=2

Entry #27 confirms my fears

So if my MOST wiring is broken how does one go about replacing it? Can you buy the cable and splice it or will i need to find a MOST loom from a used car? Going to be very difficult to find a wreck i can pull seats, carpet, and center console all out to get to it

[ctuna]

No there easy to replace you just need the right plug in's on the end.
If your car had the cdc option or pre wiring in the trunk there should be spares.
You have to route it to the active part of the Most Hub though.
But I don't know if the fact your module does not show up in Inpa is
the lack of and Can Bus connection , programming or the Most Bus connection.

https://www.aliexpress.com/item/4000...archweb201603_

The ends are snap ins and reconfigurable.

Just because the hardware shows up doesn't mean its enabled.

[Brendanssound]

Originally Posted by ctuna

No there easy to replace you just need the right plug in's on the end.

Do share if you have anymore details on this..
Part numbers, Best way to go about replacing the broken fiber etc

Originally Posted by ctuna

If your car had the cdc option or pre wiring in the trunk there should be spares.

Spares? Where? I transplanted the entire loom from parts car and don't remember seeing any spare fiber optic

If your talking about the fiber optic that goes to the CD changer i can confirm that part is fine.. I checked for light at the cable and there was light.. It's doing the blink of death to indicate a fault elsewhere which is clearly somewhere between the rear of the car and the cable that goes to the front into into the CIC & Test point (Both of which have no light in the cables)

Don't remember if it runs to anywhere else..

Originally Posted by ctuna

You have to route it to the active part of the Most Hub though.
But I don't know if the fact your module does not show up in Inpa is
the lack of and Can Bus connection , programming or the Most Bus connection.

IF those extra wires are can bus wires id be very interested to know.. I guess if anyone else is reading along with this and able to take a photo of their combox media plug.. That could help.

I did some looking around at those other links you sent.. But the wires are different colors from mine.. Also those are for cars with TCU which mine does not have.

It seems pretty silly to me that the communications are over MOST only :/

Originally Posted by ctuna

Just because the hardware shows up doesn't mean its enabled.

Please explain?

I added the VO for combox, FA_Write to the CAS & NFRM..Had difficulties default coding the MCIC until i changed the build date.. Only thing left afaik is SG_Codieren the MEDIA module.. Just can't seem to do anything with it..

[Brendanssound]

Whoops.. Sorry didn't see you already sent me a link to some fiber optic cable.. Any chance i could get it at BMW?

Also the one you linked is male to male? is that what i need?

[ctuna]

There is a bunch of stuff on Ali express or ebay, amazon if you didn't read what
I wrote the ends are reconfigurable. About 10 times as expensive from BMW
with no functional difference, At least for the ones that have connectors on the ends.
I would expect that any of the diagnostics or programming happen over the can bus.

[Brendanssound]

Originally Posted by ctuna

There is a bunch of stuff on Ali express or ebay, amazon if you didn't read what
I wrote the ends are reconfigurable. About 10 times as expensive from BMW
with no functional difference, At least for the ones that have connectors on the ends.

Yep, Found some on eBay.. ordered 2.. 5 meters each of the stuff..

Going to be a long and annoying wait time coming from Hong Kong but i guess lesson learned.. Be gentle to Fiber Optic cables.

Also still don't know for certain if that's my only issue but fingers crossed

[Nickco43]

When I retrofit combox I use a #0311 build date and add $644 + $6VC to the VO. I would go around your most bus modules and make sure all of them are functioning. I do not see the combox on your inpa report.

[Brendanssound]

Originally Posted by Nickco43

When I retrofit combox I use a #0311 build date and add $644 + $6VC to the VO. I would go around your most bus modules and make sure all of them are functioning. I do not see the combox on your inpa report.

My VO is posted at Entry #6 and has $644 & $6VC...

As for the MOST Bus Modules though.. All devices appear to be powering on and attempting to send the little red light into the fiber optics.. However not making their way through anywhere but at the CD Changer (from Combox i believe)

With that in mind, In your opinion would this cause the combox to not show up in modules list?

Do you have any idea what the extra wires on old plug are for?

[ctuna]

cd changer is behind the US driver side rear wheel well next to the amp.
You have to trace the routing of the most bus. Starts at Radio or Idrive
goes through a test point on kick panel under the US driver side .
Then goes to the Most Hub typically behind the US Driver Side Bolster.
Most Hub has and active and non active transfer point. Then it is looped to the various
devices in the Trunk .
Early builds in the US had pre wiring which meant you would get the Most Cables
for all the possible modules even if they were not installed.
When you added a module you would have to move the Fibers needed from
the passive to active part of the Hub.

Most test point
http://www.e90post.com/forums/showthread.php?t=347222

See post 3 in the following thread.
https://www.e90post.com/forums/showthread.php?t=1322653

Most
http://www.e90post.com/forums/showthread.php?t=727663
http://www.e90post.com/forums/showthread.php?t=347222
https://www.google.com/search?q=BMW+...VCkMqy2aCK09M:
http://www.1addicts.com/forums/showt...php?p=19256760

You can shine a light through one end of the Fiber Cables to see if it comes out the other
end as a troubleshooting technique.