E 320 4MATIC Sedan (211.082) V6-3.2L (112.954) (2004)
Body Control Module: Description and Operation
GF54.21-P-4109-01T Driver-Side SAM Control Unit With Fuse and Relay Module, Task
GF54.21-P-4109-01T Driver-side SAM Control Unit With Fuse And Relay Module, Task
Task
The driver-side SAM control unit with fuse and relay module (N10/1) is connected to the Controller Area Network bus Class B (interior) (CAN- B) for
the exchange of data
The driver-side SAM control unit with fuse and relay module (N10/1) reads in the following signals, sensors and switches, controls if necessary their
function illumination and switch and controls illumination and switches the following relays and consumers via semiconductor switches.
Control
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Left front exterior lights
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Footwell lighting
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Ventilation of control unit box
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Wiper system (WSA)
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Fanfare horns (H2), right-hand fanfare horn (H2/1)
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Headlamp cleaning system (SRA)
(with code (600) headlamp cleaning system)
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Heating the windshield washer system
(with code (875) heated windshield washer system)
Reading and outputting the following signals
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Circuit 61 and circuit 58d
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Wake-up signal for air suspension with code (489) Airmatic (semi-active air suspension))
Reading in following sensors
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Coolant temperature sensor (B11/4)
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Refrigerant pressure and temperature sensor (B12/2) (up to 31.5.05)
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Refrigerant pressure sensor (B12) (as of 1.6.05)
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Outside temperature indicator temperature sensor (B14)
Reading in the following switches:
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Rotary light switch (S1)
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HCS [SRA] switch (S1s1)
(with code (600) headlamp cleaning system up to 31.5.07)
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Brake fluid indicator switch (S11)
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Parking brake switch (S12)
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Coolant level indicator switch (S41)
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Windshield washer system fluid level indicator switch (S42)
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Left front brake pad contact sensor (S10/1)
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Right front brake pad contact sensor (S10/2)
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Right rear brake pad contact sensor (S10/4)
Switching the relay
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Fanfare horn relay (N10/1kO)
Switching loads
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Left high beam (E1e1)
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Left low beam (E1e2)
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Left standing and parking lamp (E1e3)
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Left turn signal lamp (E1e5)
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Left front fog lamp (E5/1)
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Right front footwell lamp (E17/15)
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Left front footwell lamp (E17/16)
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Right rear footwell lamp (E17/17)
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Left rear footwell lamp (E17/18)
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Control unit box blower motor (M2/2)
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Windshield washer fluid pump (M5/1)
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Washer nozzle heating (R2/1)
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Heat exchanger shutoff motor (M16/32)
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Washer nozzle hose heater (R2/11)
(with code (875) heated windshield washer system)