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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz C-Class (W203, 2000 issue)

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Mercedes-Benz W203
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Automated Manual gearshift 716.6
Elements of the hydraulic control of the automated CPR Sequentronic
Elements of electronic control signals and the control unit of the automated CPR Sequentronic
Automatic Transmission 722.6
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Elements of electronic control signals and the control unit of the automated CPR Sequentronic



The analog input signals of the control unit Sequentronic

and - Operating power
s - control supply
V56 - Pressure Sensor Automatic Gearbox
V56 / 1 - Sensor determining transmission
S17 / 3 - contact sensor switch left front door
B53 - clutch travel sensor
B52 - Speed sensor coupling
Cl. 87 (Cl. 15) - Contour power supply circuit 87 of the relay 87, the chassis (N10 / 1kK) into the front control unit SAM (N10 / 1), protected by fuse 55 (N10 / 1f55)
Cl. 30 - Circuit power supply 30 from the front of the control unit SAM (N10 / 1), protected by fuse 61 (N10 / 1f61)
1 - sequential gear selection switch

Data communication control units switched CAN data bus


The analog output signals of the control unit Sequentronic

Y90 - hydraulic clutch release valve coupling device
Y91 - Solenoid valve braking PPC
Y92 / 1 - the shift solenoid 1, 3 and 5
Y92 / 2 - shift solenoid R, 2, 4 and 6
X11 / 4 - Connector DLC via the control unit SAM (N10 / 1)
M46 - Hydraulic pump control relay through ASG ASG (N10 / 1kN) in the control unit SAM (N / 10/1), protected by fuse 58 (N10 / 1f58)
The connection is possible via the CAN bus
vigatelnogo compartment (CAN C):
A1 - Dashboard
N3 / 10 - Control unit ME-SFI
N3 / 9 - Control CDI
N47-5 - Control unit ESP / BAS
N73 - The control unit EIS [EZS]

The analog output signals

Assigning control unit switching the PPC (N15 / 6):

?� Definition of working conditions;
?� Processing of incoming signals CAN;
?� The calculation of operating variables;
?� Activation of the actuators;
?� Saving and issuing of diagnostic data;
?� Processing incoming analog signals.

Only the control unit N15 / 6 is able to produce shift calculation of parameters based on the analysis of analog signals from sensors determining selected information transmission speed clutch, clutch travel, and a request for switching the hydraulic pressure.

12 + 2-pin and 18-pin control unit is fixed with safety clamps.

The main functions of the control ASG stored in a modular program code ECU, where each task in a separate block. Nevertheless, occurring interdependence define a connection of a network.

Circulation period determined by the frequency of the processor units and is approximately 10 ms.

Information transmitted by the control unit switching the PPC (N15 / 6) on the CAN bus

The control unit ME-SFI (N3 / 10) / CDI (N3 / 9):
?� Emergency stop of the engine;
?� Current transfer;
?� The required transmission;
?� Emergency operation mode of transmission;
?� Creeping torque;
?� Switching to manual mode;
Dashboard (A1):
?� Current transfer;
?� Mode of transmission;
?� Error messages / faults.
The control unit ESP / BAS (N47-5):
?� Option transmission;
?� Current transfer;
?� The required gear.
The information received by the control unit switching the PPC (N15 / 6) with CAN bus
Dashboard (A1):
?� Opening / closing the driver's door;
?� The temperature of the outside air.
The control unit ME-SFI (N3 / 10) / CDI (N3 / 9):
?� Pedal position;
?� Emergency mode;
?� Operation Tempostat;
?� The idle speed;
?� Activating the speed limiter;
?� Activation of engine speed limiter;
?� Inertial cutoff of fuel supply;
?� The torque of the engine;
?� The temperature of the oil.
Front control unit SAM (N10 / 1):
?� The function of awakening;
The control unit ESP / BAS (N47-5):
?� Speed of wheels;
?� The gauge-switch of stoplights;
?� Parking brake;
?� The signal for the control unit ESP.
The control unit EIS (N73):
?� State the terminals.




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Elements of the hydraulic control of the automated CPR Sequentronic
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Automatic Transmission 722.6

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