Information on parallel installation of TCU and ULF-SBX-H

In this vehicle, the following control units are installed in parallel:

These control units implement the following functions:

TCU Telematic Control Unit
The TCU covers all the telephone and Telematic functions. All aerials as well as other telephone hardware are connected to the TCU.
ULF-SBX-H interface box High
With parallel installation, the ULF-SBX-H exclusively operates the optional extra 6FL ”USB audio port”. Telephone functions are not implemented in this control unit.

The installation location of the TCU Telematic Control Unit and the ULF-SBX-H interface box High is shown below with the E60 as an example.

No.	Description	No.	Description
1	TCU Telematics control unit	2	ULF-SBX-H

For advanced information on the basic layout and basic functions of the TCU and ULF-SBX-H, please consult the SBT.

Functional description, see BMW Service Technology:

TIS -> Document -> SI Technology -> Enter SBT Number

SBT number: 840703056 (TCU variant US)

SBT number: 840104118 (TCU variant EURO)

SBT number: 840303045 (ULF-SBX-H)

No liability can be accepted for printing or other errors. Subject to changes of a technical nature