C 350 (204.056) V6-3.5L (272.961) (2008)
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Body Control Module: Description and Operation
GF54.21-P-6070CW Front SAM Control Unit With Fuse and Relay Module, Component Description
GF54.21-P-6070CW Front SAM Control Unit With Fuse And Relay Module, Component Description
Component Identification
Location
The front SAM control unit is located in the left of the engine compartment.
Task
The front SAM control unit is connected to the interior CAN, chassis CAN, the front end CAN and the diagnostic CAN for the exchange of data.
Limit switches supply systems and control units with voltage to match the function sequence. Requests are conveyed to the front SAM control unit via
the CAN, instrument panel LIN, the wiper/ inside rearview mirror LIN or via read-in switches and sensors.
The individual components are protected via fuses contained in the fuse and relay block.
Control of the following systems
^
Wiper system
^
Exterior lights (master)
^
Interior illumination (master)
^
Turn signal lamps (master)
^
Fanfare horns
^
Locking of rear doors (not on (United Kingdom) vehicles)
^
Heating the windshield washer system (with code (875) heated windshield washer system)
^
Headlamp cleaning system (with code (600) Headlamp cleaning system)
^
Rain closing of tilting/sliding roof (with code (414) Power glass tilting/sliding sunroof and code (345) rain sensor)
Gateway between the following LINs
^
Instrument panel LIN
^
Wiper/inside rearview mirror LIN
Central gateway between the following CANs
^
Interior CAN
^
Chassis CAN
^
Diagnostic CAN
^
Front end CAN
Discrete inputs
^
Refrigerant pressure sensor (B12)
^
Outside temperature sensor (B14)
^
Right front brake wear sensor (S10/2)
^
Right rear brake wear sensor (S10/4)
^
Brake fluid level switch (S11)
^
Parking brake indicator switch (S12)
^
Backup lamp switch (S16/2) (on transmission 711 and 716)
^
Coolant level switch (S41)
^
Windshield washer system fluid level switch (S42)
