Notes on Parallel Installation of TCU and ULF-SBX-H

Notes On Parallel Installation Of TCU And ULF-SBX-H


In this vehicle, the following control units are installed in parallel:
- TCU Telematics control unit
- ULF-SBX-H Interface box

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 SA6FL optional equipment "USB audio interface". 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.







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