1 Series E81 130i (N52K) 3-door
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Interior lighting
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Central locking system
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Power windows
Door mirrors
There are 2 versions of the switch block in the driver's door:
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Switch block in the driver's door, basic variant
The switch block sends its signals directly to the footwell module (FRM).
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Switch block in driver's door, High variant
The switch block is connected to the LIN bus. The requests to adjust the mirror are sent via the LIN
bus.
The footwell module (FRM) receives and processes the signals via the LIN bus.
The footwell module scans for requests from the driver's door High switch block every 20 milliseconds.
In sleep mode, the power supply is disconnected. The exterior mirrors cannot be actuated.
The mirror heating is controlled by the footwell module. The corresponding signal is fed via the LIN bus
to the electronic evaluation unit in the mirror.
If a mirror memory is fitted, the footwell module will store the memory position of the mirrors.
[more ...]
Exterior lighting
The lighting functions are integrated into the footwell module (FRM).
These lighting functions are:
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Parking lights
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Main-beam headlights
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Headlight flasher
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Turn signals
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Hazard warning lights
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Brake lights
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Dipped-beam headlights
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Reversing light
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Front foglights
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Rear foglight
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Parking lights
Besides the lighting functions, other exterior lighting functions are also integrated in the footwell module:
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Light monitoring
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Headlight beam throw adjustment
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Emergency operating mode if the footwell module should fail
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Lamp replacement
(important lighting functions are substituted by other lights being actuated in the event of individual
lights failing.)
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Follow-me-home lights
SBT Footwell module E70, E71, E81, E82, E87, E90, E91, E92, E93
BMW AG - TIS
22.01.2013 13:29
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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