73
E90 General Vehicle Electrical
Controls
Driver's Door Switch Cluster
The driver's door switch cluster is connected via the LIN-bus to the footwell module. The
power window switches are resistance-coded and switched to ground.
Signal Evaluation of the Power Window Switches
The signals of the power window switch in the driver's door are evaluated directly by the
driver's door switch cluster and transferred to the footwell module via the LIN-bus.
The signals from the power window switches in the front passenger's door as well as the
power window switches of the both rear doors are evaluated by the JBE.
Signal evaluation of the power switches is summarized in the following table.
Index Explanation
1
Outside mirror adjustment switch
2
Selector switch, outside mirror left/right
3
Power window button, passenger's door
4
Power window button, rear right
5
Child safety lock button
6
Power window button, rear left
7
Power window button, driver's door
8
Folding outside mirror button
Driver’s Door Switch Cluster Door Switches
Driver's Side
Passenger's
Side
Left Rear Right Rear
Passenger's
Side
Left Rear Right Rear
Direct Link to
------ ------ ------ ------ JBE JBE JBE
Connection via
LIN-Bus to:
FRM FRM FRM FRM ------ ------ ------
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