1 Series E81 118i (N46T) 3-door
The position of the drive is reported back to the belt feeder controller by a Hall sensor in the drive.
The end position of the extended belt feeder is recorded by another Hall sensor. The end position is indicated to
the belt feeder controller.
The belt feeder controller transmits both signals to the footwell module (FRM) via the LIN bus. The actuation
circuit is located in the footwell module.
The belt feeder on the front-passenger side is only actuated if the front-passenger seat is occupied.
System functions
The following functions are executed by the footwell module:
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Gateway between LIN bus and K-CAN
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Activation via various signals
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Storing vehicle order
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Other functions
Gateway between LIN bus and K-CAN
The footwell module (FRM) enables communication to take place between the LIN bus and the K-CAN.
The footwell module transfers the messages to the relevant recipient bus.
Components on the LIN bus:
•
Special equipment exterior mirrors
•
Switch block in driver's door, High variant
•
2 stepper motor controllers for the adaptive headlight stepper motors
•
2 belt feeder controllers (E92 only)
Activation via various signals
The footwell module (FRM) can be woken up via the following signals:
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K-CAN active
•
Terminal 15 ON
•
Hazard warning switch ON
•
Change in state of door contacts
•
Anti-theft alarm system alarm
Storing vehicle order
The vehicle order is stored in the footwell module (FRM). For the order to be stored, terminal 15 must be ON and
the vehicle must be travelling at a road speed of less than 5 km/h.
The vehicle order enables the vehicle to be identified. Besides the type code number, the vehicle order contains
all important equipment features on the vehicle.
Other functions
The footwell module (FRM) influences various functions on the vehicle. The following components are controlled
by the footwell module:
•
Exterior mirrors
•
Exterior lighting
SBT Footwell module E70, E71, E81, E82, E87, E90, E91, E92, E93
BMW AG - TIS
19.01.2013 06:27
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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