HU-B: Head unit Basis

The head unit basic version (HU-B) has 8 freely programmable favorite buttons.

Courtesy of BMW OF NORTH AMERICA, INC.

Example F32

The audio operating facility and climate operating facility are connected electrically to the integral automatic climate control (IHKA). A local interconnect network bus is used here. The operating facilities take their power supply and ground connection from the IHKA with terminal 30F.

In principle, the structure of the HU-B corresponds to that of a PC (personal computer). Similar to a PC the head unit basic version includes:

• Processor
• Working memory
• Other peripheral equipment such as a DVD drive (optional, not with I3)

The head unit basic version (HU-B) is connected to the diagnosis socket via Ethernet. The software can thus be reprogrammed during service operation.

Because of the extended functionality, the connections on the rear of the head unit basic version have changed.

The head unit basic is available in different versions (depending on vehicle equipment, national-market version, for example).

The following illustration shows for example possible connections on the rear side of the head unit basic.

Courtesy of BMW OF NORTH AMERICA, INC.