BMW 7 Series (F01/F02) 2008-2015 Service Manual / General Vehicle Electronics / Steering Column Switch Cluster
BMW 7 Series: Steering Column Switch Cluster
- Introduction
- System Overview
- Functions
- Detecting The Controls
- System Components
- Operating Principle Of Optical Steering Angle Detection
- Steering Wheel Button Block
- Electrical Steering Column Adjustment
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Introduction
The Steering Column Switch Cluster - An Interface
The steering column switch cluster is a "mechanical and electrical interface"
from the steering wheel to the
vehicle; it is firmly connected mechanic
System Overview
Input/output Diagram, Steering Column Switch Cluster
Fig. 125: Steering Column Switch Cluster Input/Output Diagram
COMPONENTS DESCRIPTION CHART
Steering column stalk for turn-indicator/high-beam sw
Functions
Signal Detection
The functions of the steering column switch cluster are:
Detecting the switching signals of the steering-column switches
Detecting the controls in the multifunction steering wheel
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Zero Position Sensor
The zero position of the swivel module with respect to the zero position
sensor is detected by a 1/0 edge when
swivelling from the direction of the off position in the direction of the
optical axis. The swivel module is
repeatedly calibrated during operation based on this "soft" reference point.
Rear seats- Lumbar support
Concept
The curvature of the seat backrest can be adjusted
in a way that it supports the lumbar region
of the spine. The lower back and the spine are
supported for upright posture.
Adjusting
Press the front/rear
section of
the button:
The curvature is increased/
decreased.
Press the upper/lo
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