BMW 7 Series: System Overview
The system circuit diagram for the outside temperature is displayed below.
The diagram is structured in such a way that only the control units and control elements directly involved in the instrument cluster are shown.
The instrument cluster receives a large number of different bus signals that provide information (speed, CC messages, etc.) for the various displays and indicators. These bus signals are requests to the instrument cluster and are therefore not listed in this product information.
The only directly connected component that can be seen in the system circuit diagram is the outdoor temperature sensor.
This input signal is read directly in the instrument cluster and made available from here to all other bus users.
The outdoor temperature sensor wiring "passes through" the junction box and is processed directly by the instrument cluster.
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Fig. 6: System Circuit Diagram For Outside Temperature
OUTSIDE TEMPERATURE SYSTEM REFERENCE CHART
- Central Gateway Module (ZGM)
- Car Access System (CAS)
- Instrument Cluster
- Outside Temperature Sensor
- Junction Box
- Front Distribution Box
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Principles Of Operation
Instrument Cluster
The instrument cluster receives information on the wiring harness in the form
of analog and digital electrical
signals. These signals are processed and displayed in the instrument
Central Information Display
Main Menu
The display in the main menu consists of the following menu items:
CD/Multimedia
Radio
Telephone
Navigation
Contacts
Vehicle Info
Settings.
Fig. 16: Display Telephone
In addition t
Vehicle Info Menu
BMW ASSIST Menu
The "Vehicle Info" menu contains all the information regarding the condition,
service intervals, the on-board
computer and the journey computer of the vehicle.
In addition, this menu
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Radio
FM Stations
The layout of the "FM stations" in the Radio menu has been adapted to the new
operating concept.
The former layout of the "All stations" list in the form displayed by the CCC
has been replaced in the CIC by a
list layout.
Fig. 73: Display - FM Menu
Fig. 74: Selecting FM Station
Fig
Front Lumbar Support
Using lumbar support, the backrest can be individually adapted to the spinal
column and thus ensures relaxed
driving. Lumbar support is a standard feature in the multifunction seat.
The button for the lumbar support adjustment is located on the side of the front
seat and is connected via the
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