BMW 7 Series: System Overview
Input/output Diagram, Steering Column Switch Cluster
.png)
Fig. 125: Steering Column Switch Cluster Input/Output Diagram
COMPONENTS DESCRIPTION CHART
- Steering column stalk for turn-indicator/high-beam switch
- Steering column switch cluster (SZL)
- Steering column stalk wiper switch
- Footwell module (FRM) 12 Control unit (KAFAS)
- Central gateway module (ZGM)
FlexRay - FlexRay
- Junction box electronics (JB)
- Instrument cluster (KOMBI)
- Multifunction steering wheel
- Coil-spring assembly
- Steering wheel heating/steering wheel adjustment buttons
- Crash Safety Module (ACSM)
LIN-Bus - Local Interconnect Network bus
LWS - Steering-angle sensor
The signals which are triggered by the turn-indicator/high-beam switch steering column stalk (1) or wiper switch (3) are made available to the footwell module (4) or the junction box electronics (6).
The button signals at the multifunction steering wheel (8) are directed through the coil-spring assembly (9) to the steering column switch cluster (2), where they are evaluated and then transmitted across the FlexRay.
System Circuit Diagram, Steering Column Switch Cluster
.png)
Fig. 126: Steering Column Switch Cluster System Circuit Diagram
COMPONENTS DESCRIPTION CHART
- Central gateway module (ZGM)
- Footwell module (FRM)
- Dynamic Stability Control (DSC)
- Car Access System (CAS)
- Instrument cluster (KOMBI)
- Crash Safety Module (ACSM)
- Junction box electronics (JB)
- Front distribution box
- Fanfare-horn button
- Steering column stalk wiper switch
- Automatic wiping LED
- Wiper switch
- Knurled wheel for intensity of the rain-light-solar-condensation sensor
- Automatic wiping button
- Steering column switch cluster coil spring
- Steering column switch cluster (SZL)
- Button combination steering wheel heating/electrical steering column adjustment
- Electrical steering column adjustment button
- Steering wheel heating button
- Steering wheel heating button LED
- High-beam assistant button
- On-board computer button
- Turn-indicator/high-beam switch
- Steering column stalk for turn-indicator/high-beam switch
- Driver's airbag priming caps
- Steering wheel electronics
- Vibration actuator
- Steering wheel heating
- Button block for cruise control system in the multifunction steering wheel
- Button block for radio/telephone etc. in the multifunction steering wheel
FlexRay - FlexRay
KI. 30 - Terminal 30
KI. 30B - Terminal 30 base operation
LIN-Bus - Local Interconnect Network bus
LWS - Steering-angle sensor
NOTE: A three-stage driver's airbag is installed in the US version.
READ NEXT:
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
Detecting The Controls
The multifunction steering wheel has additional buttons. The buttons increase
in-car comfort and convenience
by providing for comfort and convenience functions.
The steering column switch cluster re
System Components
The Steering Column Switch Cluster as Standard Equipment
The steering column switch cluster (SZL) consists of, among other things, the
following components:
Electronic steering column switch cluste
SEE MORE:
Blind spot collision warning- Warning function
Light in the exterior mirror
Prewarning
The dimmed light in the exterior mirror indicates
when there are vehicles in the blind spot or approaching
from behind.
Acute warning
When the turn signal is switched on while a vehicle
is in the critical zone, the steering wheel vibrates
briefly and the lig
Rear window roller
sunblind
General information
The safety switch in the driver's door can be
used to prevent children from operating the roller
sunblind using the switches in the rear, for instance.
Additional information:
Safety switch
Safety information
NOTICE
When operating the roller sunblind, objects
stored on the shelf
