1 Series E81 130i (N52K) 3-door
The top-light comes on automatically when Terminal R is switched on, along with the parking lights.
Signal path: CAS (Car Access System) -> FRM (footwell module) -> FZD (roof control panel) -> LEDs for
top-light
The FZD control unit simply transfers data from the FRM control unit to the top-light LED display.
Sliding/tilting sunroof control
> E70, E81, E87, E90, E92
The FZD control unit is responsible for controlling the sliding/tilting sunroof.
The FZD control unit controls the sliding/tilting sunroof as follows:
•
The FZD control unit evaluates the signals from the sliding/tilting sunroof switch.
•
The FZD control unit actuates the sliding/tilting sunroof drive.
> E70
The FZD control unit controls 2 drives.
•
The FZD control unit receives the signals from the two Hall sensors regarding the position of the
sliding/tilting sunroof.
> E70
The FZD control unit also receives the signals from the two Hall sensors via the position of the sliding visor
and the wind deflector.
•
The FZD control unit executes the convenience closing request for the sliding/tilting sunroof (e.g. from the
comfort access CA).
The requests of the comfort access reach the FZD control unit via the K-CAN.
> E91
The E91 with Panorama glass sunroof (option 402) has a separate SHD control unit.
On these vehicles, the FZD control unit evaluates the sliding/tilting sunroof switch.
The FZD control unit sends the "Open", "Close", etc. requests to the FZD control unit. The roof control panel
control unit sends appropriate CAN messages to the sliding/tilting sunroof control unit (via the K-CAN).
Master for rain-light sensor or rain-light solar sensor
The FZD control unit provides the rain-light sensor or rain-light solar sensor a bus connection to the K-CAN.
This enables the following messages and requests to be sent:
•
Switch position of the wiper switch or button for intermittent operation, depending on the rain-light sensor or
rain-light solar sensor
•
Position of the thumbwheel for setting the sensitivity of the rain-light sensor or rail-light solar sensor
(selection of interval stage for rain sensor with wipers in intermittent operation)
•
Status of wipers: The signal from the reset contact in the wiper motor is transmitted via the FZD control unit
to the rain-light sensor or rain-light solar sensor.
•
"Switch dipped-beam headlights on" prompt from rain-light sensor or rain-light solar sensor to footwell
module: If the rain-light sensor or rain-light solar sensor detects that it is dark, the dipped-beam headlights
will come on automatically (if the light switch is in switch position "A" = "Automatic driving lights control").
3. The FZD control unit in the roof control panel (High variant) is the data interface for the following components and
functions:
Gateway between K-CAN and LIN bus
The FZD control unit is the data interface for the rain-light sensor or rain-light solar sensor between the K-CAN
and the LIN bus.
Gateway for condensation sensor
SBT Roof control panel E70, E81, E87, E90, E91, E92, E93
BMW AG - TIS
22.01.2013 13:34
Issue status (12/2007) Valid only until next DVD is issued
Copyright
Page - 11 -
