GF54.21-P-6030CA Rear SAM Control Unit With Fuse and Relay Module, Component Description
GF54.21-P-6030CA Rear SAM Control Unit With Fuse And Relay Module, Component Description
Component Identification:
Location
The rear SAM control unit is located in the rear right of the luggage compartment.
Component Identification:
Location
The rear SAM control unit is located at the right in the trunk under the cargo area trim.
Task
The rear SAM control unit supplies various systems via limit
switches and supplies control units with voltage depending on the
function sequence. In addition the rear SAM control unit has the
following tasks:
^ Reading in of sensors, pickups and signals
^ Evaluation of input factors
^ Actuation of systems
^ Actuating components
Reading in of sensors, pickups and signals
The input factors are read in via the following connections:
^ Direct line
^ Local Interconnect Network (LIN)
^ Interior CAN (CAN B)
Direct line
The signals from the following components are read via a direct line:
- FM, AM and CV antenna amplifier (A2/55) (model 207.4)
- Left fuel level indicator sensor (B4/1)
- Right fuel level indicator sensor (B4/2)
- Trunk lid central locking motor (M14/7)
- Tank cap central locking motor (M14/10)
- On model 207.3 with code (540) Roller sun blind:
- Hall sensor, sun blind roller motor for rear window (M24b1)
- With code (401) Front deluxe seats, incl. seat heating and seat ventilation:
- Left front seat ventilation blower regulator (N29/5)
- Right front seat ventilation blower regulator (N29/6)
- Without code (275) Memory package for electrically adjustable front seats:
- Switch, partially electric seat adjustment, driver-seat (S22/1) Front passenger seat partially electric seat adjustment switch (S23/1)
- On model 207.3:
- Left rear backrest inclination switch (S54/5)
Right rear backrest inclination switch (S54/6)
- Left rear seat backrest lock switch (S54/7)
Right rear backrest lock switch (S54/8)
- For code (551) Antitheft alarm system (ATA [EDW]):
- Anti-theft alarm system switch, engine hood (S62)
- with code (889) Keyless-Go:
- Keyless-Go trunk lid button (S62/21)
- Left rear seat belt buckle switch (S68/5)
- Right rear seat belt buckle switch (S68/6)
- With code (887) Valet Parking:
- Trunk lid contact switch (S88/6)
- Trunk lid external operation switch (S88/8)
- For code (494) USA version:
- Trunk lid emergency opening switch (S88/10)
LIN
The signals from the following sensors are read in via LIN:
- Battery sensor (B95) over the on-board electrical system LIN (LIN B7)
- With code (551) Antitheft alarm system (EDW) via rear SAM-LIN (LIN B4):
- Alarm siren (H3/1) (model 207.3 up to 31.5.10, model 207.3 as of 1.6.10 without code (494) USA version, model 207.4 without code (494) USA version)
- Interior protection sensor (Master) (A26/13) (on model 207.4 with code (882) Interior compartment protection (only with ATA)(EDW))
Interior CAN
The signals are read in by the rear SAM control unit over the interior CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Evaluation of input factors
The input factors are evaluated by the microprocessor and the corresponding components are actuated.
Actuation of systems
- Battery state recognition
- Exterior lights (ABL) for vehicle rear
- Rear window defroster
- Heated seats (HS) (with code (873) front left and right heated seats)
- Electric seat ventilation (with code (401) Front comfort seats, incl. seat heating and seat ventilation)
- Antitheft alarm system (ATA [EDW]) (with code (551) Antitheft alarm system (ATA [EDW]))
Component actuation
Actuation of the components takes place via the following
connections:
^ Direct line
^ LIN
^ Interior CAN
Direct line
The following components are actuated via a direct line:
- Left rear lamp unit (E3)
- Inner left rear lamp unit (E3/1)
- Right rear lamp unit (E4)
- Inner right rear lamp unit (E4/1)
- Right luggage compartment lamp (E18/4)
- Left license plate lamp (E19/1)
- Right license plate lamp (E19/2)
- Center brake lamp (E21)
- Trunk lid ambient lamp (E40)
- Quiescent current cutout relay (F32k2)
- Trunk lid central locking motor
- Tank cap central locking motor
- On model 207.3 with code (540) Roller sun blind:
- Roller sun blind motor for rear window (M24)
- With code (432) Dynamic multicontour seat, left and right:
- Pneumatic pump for MKS (M40)
- Rear window heater (R1)
- With code (401) Front deluxe seats, incl. seat heating and seat ventilation:
- Left front seat ventilation blower regulator
Right front seat ventilation blower regulator
- With code (873) Heated seats, left and right front seat:
- Left front seat sitting surface heater pad (R13/1)
- Left front backrest heater pad (R13/2)
- Right front seat sitting surface heater pad (R13/3)
- Right front backrest heater pad (R13/4)
- For code (494) USA version:
- Trunk lid emergency opening switch (circuit 58d)
LIN
The following component is LIN-actuated:
- For code (551) Antitheft alarm system (ATA [EDW]):
- Alarm siren (model 207.3 up to 31.5.10, model 207.3 as of 1.6.10 without code (494) USA version, model 207.4 without code (494) USA version)
Interior CAN
The signals are sent over the interior CAN by the rear SAM control unit.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
