5 Series E61 523i (N52) TOUR
The electrochromic interior mirror is likewise connected to the KGM.
[system overview ...]
Brief description of components
The following components deliver an input signal for the electrical adjustment of the exterior mirrors:
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Driver's door switch block
The two exterior mirrors are operated from the driver's door switch block.
[more ...]
>up to 09/2005
The switch block is connected via a LIN bus on the driver's door module (TMFA) (LIN = Local Interconnect
Network).
>from 09/2005
The driver's door switch block is connected to the body gateway module (KGM) via the LIN bus (LIN = Local
Interconnect Network).
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Position potentiometer in exterior mirror
The mirror glass is adjusted horizontally and vertically by separate motors. The position of the motors is detected
by potentiometers.
>up to 09/2005
The position is sent to the relevant door module.
>from 09/2005
Information about the position is sent to the body gateway module.
The following control units are involved in the operation of the exterior mirrors:
-
TMFA and TMBF: Driver's door module and front passenger door module
>up to 09/2005
The door modules control the exterior mirrors. The driver's door module (TMFA) receives the operation request
for the exterior mirrors from the switch block in the driver's door.
[more ...]
>from 09/2005
The body gateway module actuates the exterior mirrors: The door modules and byteflight are discontinued.
-
SGM: Safety and gateway module
>up to 09/2005
The safety and gateway module (SGM) forms the gateway between K-CAN and byteflight.
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Body gateway module
>from 09/2005
The body gateway module (KGM) is the central gateway in the bus system. The KGM actuates the exterior
mirrors.
[more ...]
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SMFA: Seat module, driver
The driver's seat module (SMFA) activates the seat memory and the driver's mirror memory. The message is
sent to the door modules on the K-CAN.
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SH: Independent heating
The independent heating control unit uses the K-CAN to report independent heater operation. Exterior mirror
heating is activated during independent heater operation.
SBT Exterior mirrors E60, E61, E63, E64
BMW AG - TIS
06.02.2013 01:03
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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