Seimens Bit-II to TCU with BT upgrade Help
 

Hello,

plz forgive my poor english!

I have 330i 2003 with MKIV sw V32,TV and Bit-II seimens Telephone and im planning to upply an upgrade to use a TCU, i maneged to find it from a canceled X3 2007 part no 84109115729 Continental date 14.03.2007 SW 03.25 without the eject box upgrade.

someone had confirmed its working perfect on e46 with a telephone prewired on this link

http://www.bimmerboard.com/members/p...artNumbers.pdf

i removed every part in the trunk and the arm rest to figure out what do my car have cables for the telephone and found these:

Antenna under the arm rest ..looks very similare to the bluetooth antenna.
http://img403.imageshack.us/img403/9830/imga0876.jpg

i think a connector from the trunk and Bit-II converter SA630 and unused purpule black cable
http://img245.imageshack.us/img245/7918/imga0875.jpg

in the trunk i found a sharkfin antenna with a coaxil converter
http://img704.imageshack.us/img704/5126/imga0871.jpg

a strange hidden cable behind the amp and it confused me when i opend the set to find another purpule black and ibus cables
http://img242.imageshack.us/img242/3423/imga0868.jpg
http://img100.imageshack.us/img100/5589/imga0869.jpg

Seimens Bit-II Module
http://img369.imageshack.us/img369/7083/imga0851.jpg

Bit-II purpule black sharkfin antenna and a cream purpule cable which i couldnt figer out where does it fit inside the car!!
http://img535.imageshack.us/img535/7451/imga0861.jpg

i found a Bit-II converter which connects the module to the wiring harness, its like every module has its own converter
http://img511.imageshack.us/img511/2618/imga0864.jpg

some cables i didnt know for what like the additional purple black cable and the cream purple cable
also the TCU comes with 4 colored coaxil inputs (purple, cream , black and blue) this means im missing two cables (black and blue)

http://img138.imageshack.us/img138/8628/imga0855.jpg

i also need to know if the TCU can be connected directly to the wiring harness before the Bit-II converter

http://img245.imageshack.us/img245/7158/imga0853.jpg

any missing parts please let me know or for any needed info

For the 54 pin connector, check the WDS to make sure the pinout is correct for fiting a TCU.

For the Fakra this may be of use.

Antenna under armrest is the bluetooth antenna

The TCU needs the adapter from the BITII wiring because the pinout is different.
Do not plug in the BITII connector to the TCU directly!

The coax cables are bluetooth antenna, GSM antenna, and GPS antenna.

GSM phone = violet
GPS = blue
Bluetooth = cream

The sharkfin on the roof is GSM phone antenna only (not GPS)

The bluetooth antenna under the armrest connects directly to the TCU

Antenna under armrest is the bluetooth antenna
(this means i dont have replace it with onather part!! i thought i must replace with BT compatible antenna)

The TCU needs the adapter from the BITII wiring because the pinout is different.
Do not plug in the BITII connector to the TCU directly!
(im allready stopped at this point wondering if there is a special adapter for the TCU or should i rewire the plug to fit the TCU after unplugin the BIT-II 54 pin black adapter OR is it posible to direct connect the blue 54 pin to the TCU after removing the black 54 pin Bit-II convertor?)

The coax cables are bluetooth antenna, GSM antenna, and GPS antenna.

GSM phone = violet (i maneged to locate as pictures show but i had found two violet plugs and i wonder what the hidden one is used for)
GPS = blue (i couldnt find it but i think its replaced on my case with the tiny connector i found attached to the MKIV)
Bluetooth = cream (this is what expect it to be connected to the antenna under the arm rest right?)

The sharkfin on the roof is GSM phone antenna only (not GPS) (Violet coax with the convertor)

The bluetooth antenna under the armrest connects directly to the TCU (Cream connector)

i did today a lot of search and i checked the WDS Big Bob mentioned earllier and i found that this TCU is not much deferent than the everest TCU so i think what nailoakley posted a conversion table between Bit-II and his everest TCU was so similar to my Contenintal TCU


any help ill be thankfull and many thx for the answers

now i need to decide what violet coax needs to be used then ill try out connections hopfuly ill not crack the car system :p:

The hidden coax possibly goes to the eject box for the antenna coupler. You'll have to follow it back up the car to see really.

The TCU has two GSM connections, to allow the assist to steal the connection to the roof antenna for emergency calls.
http://i88.photobucket.com/albums/k1...U/DSC06827.jpg
http://i88.photobucket.com/albums/k1...U/DSC06839.jpg

You might be able to rewire the 54 pin connector. Someone else will be able to tell you for sure. Since you have a BITII 54pn to 54pin adaptor, you may have the TCU pinout on the connector on the main harness. Peel back the fabric tape and check the pinout. You may find it's plug and play.

This is exactly what i intend to check for tomorow after i delever my TCU from Dubai
and ill post the TCU pictures for more clarification

As Jochen says above, don't plug in the TCU without knowing for sure that the wiring is right.

Use the WDS to find the pinout for the 54 pin connector, and check the wiring. This table may be a little help.

http://i88.photobucket.com/albums/k1...MW/TCU/tcu.jpg
RT Red
SW Black
GN Green
BR Brown
GE Yellow
WS White
VI Violet
GR Grey
BL Blue

Hello,

i just had delivered my 2008 Continental TCU its 1.5 US date 20.5.2008 SW 0A.09 HW 64 and it came along with the holder and the wire harniss bu it was cutted

so i toke some pictures of it and the original cable also i toke a pictures for my car wiring harniss after removing the Bit-II cable adapter

http://img249.imageshack.us/img249/4282/imga0881.jpg
http://img404.imageshack.us/img404/6884/imga0883.jpg
http://img294.imageshack.us/img294/4513/imga0884.jpg
TCU wires from 1-18
http://img524.imageshack.us/img524/7946/imga0901.jpg
Car wires from 1-18
http://img31.imageshack.us/img31/9058/imga0906.jpg
TCU Wires from 19-36
http://img651.imageshack.us/img651/3443/imga0904.jpg
Car wires from 19-36
http://img411.imageshack.us/img411/1917/imga0909.jpg
TCU Wires from 37-54
http://img413.imageshack.us/img413/3842/imga0900.jpg
Car wires from 37-54
http://img96.imageshack.us/img96/8753/imga0905.jpg
The Bit-II adapter i removed
http://img694.imageshack.us/img694/1130/imga0910.jpg

so alot of wires are the same on both i just cannt confirm it yet
my car wires have more 4 sure and some defferent wire colors also im not planning to install an eject box so some wires ill forget about!

ill try to remap wires regarding the Bit-II wiring diagram maybe this way will be more secured!

Sounds like you are making good progress. V jealous of your 2008 iBus TCU. It looks like the power, iBus and audio out are the same, but the mic and eject box are different. Before you start swapping wires, you may want to check the other end (eject box side) and make sure you are not plugging in something to your TCU that could damage it.

Hello,

after alot of thinking i decided to get a male connecter to make ana adapter so i found this from scrap
http://img37.imageshack.us/img37/2873/imga0919.jpg

and i mad this adapter based on this wire map
http://img62.imageshack.us/img62/1199/bit2mapping.jpg
http://img686.imageshack.us/img686/3239/imga0923.jpg

when i checked the MKIV after assembling every thing the telephone menu keeps showing please wait!! then i tried to connect it without the adapter and kept the same after i searched on my mobile for bluetooth devices it did finaly connected!!! the funny thing that i spent more than houre making that adapter and it was just a mater of a plug and play!!:rolleyes:

sound quality is perfect and the pairing is automatic its realy nice upgrade :thumbup: many thanks guys

any way am very happy with it ,just only i couldnt find search function within the contacts list!! do i have to do some update or programing?

ah before i forget plz ca nyou help me with the pinout for the OEM IPod interface, i need to make the cable that connects the IPod to the interface my retrofit is missing the cable!

Perhaps start a new thread with your ipod question.

So it did work even without the adapter? did you use the bit2 adapter?

yes its working great, you don't need to build an adapter 4 it, its just a plug and play, just make sure you did remove telephone holder and disconnect the wires, don't need them and keep the antenna connected, its located under the arm rest.

good luck

I can post some pictures of my installation if u want

that would be really nice.

actually i don´t really understand the problem in my case.

it should work.

this is my setup in stock condition:

http://www.abload.de/img/bit2hwjtn.jpg


http://www.abload.de/img/bit2_unmounted20jkg.jpg

http://www.abload.de/img/bit2_antennabwkad.jpg


The antenna is still connected, i removed the retrofitted SES system and the eject box but the system wasn´t recognized in inpa.

i plugged the 54pin connector and the cream antenna connector. what do i have to do with the unwrapped purple facra and the former used "antenna" style cable?

thanks alot for your help :)

your Bit II is exactly like mine.. this means the cable retrofit should be the same 2, can you post a picture of your TCU?

and can you tell me what's your ride and which year is it?

TCU:

http://www.abload.de/img/27367147qyk2i.jpg

Car:

330i build 06/2002

actually i´m out of fuses :bustingup, so i have to wait till tomorrow to buy some new fuses.

My friend i do beleive that ur TCU is defferent and you need to figure out the wiring 4 it.. this means u need to build an adapter after u get the wiring map right.. ill try to search 4 the pinout 4 it, do you know which car mobel and you get it from?

It is different to other TCUs i have seen:

http://www.abload.de/img/tcu5yuzx.jpg

sadly the VIN was removed, so i just found:

http://www.abload.de/img/tcu-verwendungnyj39.jpg

sadly my favourite wiring diagram site is offline, otherwise i would have searched myself about rewiring. :(

So far its clear that the fuse burns becouse 1 of the 3 power wires get shorted when u connect the cable.i'll try to check the wiring for everest TCU. Hope ill get something

Alright, figured there are much differencies :wow:

BIT2:

http://www.abload.de/img/wds_stock9bu7f.jpg

TCU:

http://www.abload.de/img/wds_tcul9up3.jpg

Alright, i´m checking the wiring tomorrow and will change according to the wds :yikes:

Yup... BITII wiring is totally different at the 54-pin plug. You can either re-pin the plug or make an adapter.

I have an adapter between the cars wiring and the retrofitted SES system. so i guess i will choose the adapter at the tcu side to be changed.

Or its easier to get any 54 pin adapter from scrap .this will help you to keep the original wires untouched

I learned some TCU's are not designed to work with MKIV . I dont know how far your work is. But if you created the new wiring you can test it by searching for it on ur mobile

If ur mobile detects and connects then this TCU will not work with MKIV.

What do you mean exactly? i did the re-wiring and its still not recognized. i use a mk4, yes.

so you think i should replug the tcu (its currently not in the car) and try to find it at my mobile even if the TCU won´t be shown or found within NavCoder?

Try to plug it and connect using ur phone. If u succeded this means the TCU is working but the MKIV cannot communicate with it. Unless the ibus wire needs rewire some where else

It didn´t worked, so i guess the TCU is faulty.

It seems our TCU is fualty, TCU's are a pre-configured devices and they can work alone and incur case you 2 optoins - TCU is faulty or the wiring diagram isn't correct

the wiring is the same as to others i have found. so i guess maybe its damaged by the first wrong wiring, which i doubt as the used pins weren´t connected, or the tcu was faulty at all.

I have '05 330i that didn't come with assist or navigation. I've installed a TCU, Bluetooth antenna, and microphone. I can't get my car to detect the TCU in DIS, INPA, or NCSexpert. I've verified that my wire harness is configured for US TCU, not BIT. According to WDS pins 17 & 18 are constant power from the battery. When I test those wires I get less than 1v. Can someone test pins 17 & 18 and tell me how much voltage you are getting? Or is there a resource that shows how much voltage each wire is supposed to be getting? Any help would be greatly appreciated.