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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 09-23-2013, 02:51 PM   #1
brianacampa
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Pass Key for pairing bluetooth

I just bought a 2006 330 CI Convertible and want to pair my iphone. I need to find the pass key. Unfortunately the documentation for the phone operation was missing. I found the instructions on how to pair the phone but need the pass key and do not know how to find it
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Old 09-23-2013, 02:53 PM   #2
Zell
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I think it might be on the TCU as well.
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Last edited by Zell; 09-23-2013 at 02:53 PM.
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Old 09-23-2013, 03:09 PM   #3
jfoj
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If you have a 2006 E46 convertible with the BMW Assist/SOS button on the mirror, it should have Bluetooth.

Contrary to ANYTHING you rear, there is no button to push for pairing the Bluetooth in the car.

The ULF/TCU module should have the passkey on it. You might try the last 4 of the VIN, but I cannot say this will work.

I have had my 2006 for 4 years and I have never located the ULF/TCU module, it is likely in the trunk, but I did not want to pull all the lining off to access it.

The easy way is to just buy the BMW Scanner 1.4.0 software from www.xcar360.com and then you can read the Bluetooth passkey and also program your windows and top to close with your keyfob and do some other things.

You could probably search the net for where the ULF/TCU is located in the convertible.

One piece of useful information to note, when you are looking for parts other than the dealer, tell EVERYONE it is a 2005 not a 2006. Most parts people and parts applications do not realized the coupe and convertible in 2006 is an E46, they always think these are E9x.

Very common for people to get the 2006 confused for an E9x chassis.
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Old 09-23-2013, 03:56 PM   #4
ragtop69
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The tcu is mounted against the rear seat on the left side of the trunk. I believe the passcode is printed on it. It is easy to get too, just pull out the left side and rear seat trim panels
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Old 09-23-2013, 05:28 PM   #5
PKR
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Right, its against the rear seat but the HF (handsfree) code is hidden on the backside so you may need to loosen it or remove it.
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Old 09-23-2013, 08:51 PM   #6
ragtop69
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I think you are right, you have to unbolt it to see it. I retrofitted bluetooth so I wrote it number down before I installed it
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Old 09-23-2013, 10:32 PM   #7
brianacampa
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I'll give that a try. What does TCU stand for?
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Old 09-24-2013, 07:39 AM   #8
bimmernut3
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Here's a picture of the TCU (Telephone communications unit) or something like that. The numbers after the "PK" are the "PASS KEY" numbers. Hope this helps.
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Old 09-24-2013, 08:49 AM   #9
brianacampa
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thanks
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Old 09-25-2013, 05:43 PM   #10
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Fwiw, PA Scanner also lets you program your own passkey. This is what I did to a more easy to remember one in case I get in the same situation in the future.
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Old 09-25-2013, 06:47 PM   #11
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Quote:
Originally Posted by alpine003 View Post
Fwiw, PA Scanner also lets you program your own passkey. This is what I did to a more easy to remember one in case I get in the same situation in the future.
What & where "PA scanner" did you buy?
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Old 09-25-2013, 07:01 PM   #12
///M Protocol
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there is a passkey sticker on your tcu (actual it is your ULF). your telephone control/communication unit is located in the trunk. on the rear driver side.

I have a pairing button underneath my arm rest and it is required for me to pair my phone initially.

Last edited by ///M Protocol; 09-25-2013 at 07:04 PM.
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