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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > Did I get a DOA Combox ?



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      05-21-2015, 09:09 AM   #1
X.X.I.V
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Did I get a DOA Combox ?

Ok so I bought a Combox and harness from a forum member on here, and been having a hard time getting this box installed an coded to my car.
First coder I met said, he could not code everything, "needed the CIC updated to a newer level. "
Another coder tried to do the install and he said
"Your iDrive software isn't old, and it can accept the Combox coding, but your combox module isn't responding.
He had to eliminate the harness, since it wasn't correctly pined, but still no luck."

Is there a way to test out the Combox and narrow down the issue.
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      05-21-2015, 09:25 AM   #2
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is it Media or Telematic?

Your software don't have to be updated if you want to use BT audio.

I assume that you have it connected wrongly. I mean which pin supplies power?

TCU-----------------------Combox

Pin---Description-----------Pin---Description

1----Mic(pos)--------------25----Mic(pos)
4----AUX-GND-------------10----AUX-GND
15---Crash Sig.-------------7----Crash Sig.
17---30 Power+ 5A---------2----30 Power+ 5A
18---30 Power+ 10A--------1----30 Power+ 10A
19---MIC(neg)------------12-----MIC(neg)
21---MIC Shield-----------11-----MIC Shield
23---Shield---------------22-----Shield
31---SOS sig.f Button-----18-----SOS sig.f Button
33---Wakeup-------------15-----Wakeup
36---31 GROUND(neg)-----14----31 GROUND(neg)
37---emerg. Speak.(pos)--21----emerg. Speak.(pos)
38---emerg. Speak.(neg)--20----emerg. Speak.(neg)
50---emerg. butt LED-----17----emerg. butt LED
54---GROUND-
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      05-21-2015, 10:30 AM   #3
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Well on the harness that I have it only 10 pins on it for a TCU and MULF connection but it's not the harness problem but module itself.

I have confirmed that by eliminating the harness and make the pins go straight into the module, but end result was same.
I'll check it out after my training class is over today
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      06-08-2015, 11:21 PM   #4
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update: its a Media not telematics i am getting a red light from the Most Connection and a light coming out of the ComBox . I know the harness is correct
Ive attached a better series of photos for the MULF and TCU connections.
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Last edited by X.X.I.V; 06-08-2015 at 11:43 PM.
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      06-09-2015, 04:25 AM   #5
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Try to use PIN 1 for power supply. It's probably PIN 2 at the moment.
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      06-09-2015, 04:09 PM   #6
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Quote:
Originally Posted by cryptomit
Try to use PIN 1 for power supply. It's probably PIN 2 at the moment.
No power is on pin 1 of the combox connector
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      06-10-2015, 12:35 AM   #7
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Do you get a red light out of the combox when you plug in the harness with the most loop connector out? The only things you need are power ground and most for the combox to respond. All the other pins are irrelevant. Pretty sure thats one of my early harness. As long as the power and ground for the mulf connector line up and go to 1 and 14 on the combox which it does based off the images shown you should be good to go.

Upload a picture of the side of the combox with the label showing
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      06-10-2015, 08:10 AM   #8
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Quote:
Originally Posted by glachhman2
Do you get a red light out of the combox when you plug in the harness with the most loop connector out? The only things you need are power ground and most for the combox to respond. All the other pins are irrelevant. Pretty sure thats one of my early harness. As long as the power and ground for the mulf connector line up and go to 1 and 14 on the combox which it does based off the images shown you should be good to go.

Upload a picture of the side of the combox with the label showing
Yea, that's the harness you sent me in Hawaii earlier this year. After we determined it won't work without CIC, I sold all of this as a kit.
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      06-10-2015, 08:15 AM   #9
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Quote:
Originally Posted by X.X.I.V View Post
No power is on pin 1 of the combox connector
Try 2.
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      06-10-2015, 09:12 AM   #10
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Quote:
Originally Posted by glachhman2
Do you get a red light out of the combox when you plug in the harness with the most loop connector out? The only things you need are power ground and most for the combox to respond. All the other pins are irrelevant. Pretty sure thats one of my early harness. As long as the power and ground for the mulf connector line up and go to 1 and 14 on the combox which it does based off the images shown you should be good to go.

Upload a picture of the side of the combox with the label showing
I am getting a red light on both the most connection
And verified that the light came on the combox when I put the battery cable back on, but I noticed if I cycle the ignition accessory I don't see the combox light come on any more?
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      06-10-2015, 11:07 AM   #11
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The harness is good and the combox is powering on. Your issue is seems to be coding or car related.
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      06-10-2015, 12:59 PM   #12
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Quote:
Originally Posted by glachhman2
The harness is good and the combox is powering on. Your issue is seems to be coding or car related.
Can anyone confirm that the light on the combox turns on when the ignition is turned on?
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      06-10-2015, 06:12 PM   #13
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Your in luck. I was just doing some combox work on my e92 m3 today.

The best way to check if the light turns on or not is:

Start it up with the MOST plugged in and unplug it.

It should stay on for a few seconds before turning off. That was the case with mine as I unplugged the MOST a number of times while doing things in there.

Can't say for sure if it turns on just from recieving power or not.

As far as the power pins, as per ISTA/P:

Pin 14 = Ground
Pin 1 = +

Double check your fuse too BTW... Depending on how you wired it, it should have its on KL30 fuse in the fuse box.

Quote:
Originally Posted by X.X.I.V View Post
Can anyone confirm that the light on the combox turns on when the ignition is turned on?
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      06-10-2015, 10:30 PM   #14
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Yes I can see the light coming from the combox when I disconnect it but it more like a half second
If I return the connector close enough to have the light shine in the (input) side the combox (output) lights up.
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      06-11-2015, 09:23 AM   #15
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I'm meeting my coder guy today At 11
Will be looking over the settings and kinda following this thread from another fourm
h t t p://w w w .b m w c o d i n g. C o m/showthread.php?t=12588[/url]
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      06-11-2015, 05:01 PM   #16
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We triple checked all the above settings in that thread.
But we are stumped at why we could not read or write to the combox.
After changing the VO in CAS, reprogramming with CIC with SG_CODIEREN is fine. But programming MEDIA with SG_CODIEREN fails with the following error: see photo...

Also we confirm that in Bluetooth media or telephone just says please Wait. And has a spinning circle he says you should at least be able to
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      06-13-2015, 09:37 PM   #17
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I know it has that sticker on it, but I don't think it is the BN2000, this is the exact same behavior given by the BN2010 unit out of a F-series. It is possibly mislabeled, mistakenly or otherwise.
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      06-13-2015, 09:41 PM   #18
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the model number is rubbed off here too... probably is the BN2010
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      06-14-2015, 01:39 AM   #19
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^ +1 that is bn2010 behavior
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      06-15-2015, 12:02 AM   #20
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After looking at the hardware photos, wouldn't Q1 2012 production make it a F series combox? This doesn't make sense. And you guys are right, the model number seems to be rubbed off and then a new sticker placed over it.

Sounds like it's time to get a refund for this Combox and/or file a Paypal claim/chargeback. I hate shady sellers.

OP and I have been trying to get this to work for a long time now, and I've been by stumped why I couldn't communicate to the Combox despite double/triple/quadruple checking all the coding.
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      06-15-2015, 12:19 AM   #21
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Yeah i would definitely recommend contacting the seller and asking for the correct model...
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      06-15-2015, 07:50 AM   #22
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Yes i just noticed the rub off right when you guys did
I have been in contact with the seller he's been good about offering suggestions to make it work and has agreed to a refund as soon as he is finished moving this month, Paypal has 180 day policy.
He purchased this of a guy on ebay but said he could not get it to work, does not have CIC.
I did purchase another combox with telematics over the weekend with a 30 day NO questions asked return policy....it should be here in a few days.
With the coding already in place, could we plug this in and test? Shouldn't we expect the Bluetooth and USB to work?
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