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
SEE MORE:
Removing And Installing Or Replacing Rear Left Or Right Seat Belts
Necessary preliminary work
Remove rear storage shelf.
Remove rear seat.
Removing left or right automatic reel:
Release screw (1).
Tightening torque 72 11 21AZ.
Installation note:
End fitting is coded against incorrect assembly.
Fig. 1: Identifying Right Seat Belt Screw
Release screw (1).
Ti
Replacing Front Left Door Post (Front Side Panel Removed)
Procedure OBSERVE repair stage 3! Read contents of BODY, GENERAL.
Spot-weld bonding is used on this vehicle. Observe specific procedure See
SPOT-WELD BONDING
STEEL PARTS.
Place vehicle on straightening bench.
Following new body parts are required:
A-pillar, outer
Connection, side frame
Shape
