Mercedes C-Class

W203 since 2000 of release

Repair and car operation

Mercedes-Benz
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
- Automatic transmission
   Specifications
   - The automated box of gear shifting 716.6
      Elements of hydraulic management of Sequentronic automated by a check point
      Elements of electronic control and signals of the control unit of Sequentronic automated by a check point
   + Automatic transmission 722.6
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Elements of electronic control and signals of the control unit of Sequentronic automated by a check point

Analog entrance signals of the Sequentronic control unit


and — a Working food s — an Operating food В56 — the Sensor of pressure automated by a check point B56/1 — the Sensor of definition of transfer S17/3 — the Contact sensor switch of the left forward door В53 — the Sensor of a course of coupling В52 — the Sensor of frequency of rotation of coupling	C. 87 (C. 15) — A contour of giving of a food 87 from a chain of the relay 87, the chassis (N10/1kK) in the forward SAM control unit (N10/1) protected by a safety lock of 55 (N10/1f55) C. 30 — the Contour of giving of a food 30 from the forward SAM control unit (N10/1), 61 (N10/1f61) protected by a safety lock 1 — the Switch of a consecutive choice of transfers

Data exchange of control units on the switched tire of data of CAN

Analog target signals of the Sequentronic control unit

Y90 — the Valve of the hydraulic vyzhimny device of coupling
Y91 — the Electromagnetic valve of braking of a check point
Y92/1 — the Electromagnetic valve of switchings 1, 3, and 5
Y92/2 — the Electromagnetic valve of switchings of R, 2, 4 and 6
X11/4 — the DLC Socket via the SAM control unit (N10/1)
М46 — Gidronasos of ASG via the operating ASG relay (N10/1kN) in the SAM control unit (N/10/1), 58 (N10/1f58) protected by a safety lock
Connection is possible via the tire CAN
vigatelny compartment (CAN C):

А1 — the Control panel
N3/10 — the ME-SFI Control unit
N3/9 — the Control unit CDI
N47-5 — the ESP/BAS Control unit
N73 — the EIS [EZS] Control unit

Analog target signals

Purpose of the control unit of switching of a check point (N15/6):

· Definition of working conditions;
· Processing of entering signals of CAN;
· Calculation of working variables;
· Activation of actuation mechanisms;
· Preservation and issue of diagnostic data;
· Processing of entering analog signals.

Only the N15/6 control unit is capable to make calculation of parameters of switching on the basis of the analysis of the analog signals arriving from information sensors of definition of chosen transfer, frequency of rotation of coupling, a course of coupling, request for switching and hydraulic pressure.

The 12+2-contact and 18-contact socket of the control unit is fixed by safety clips.

The main functions of management of ASG are stored in the modular program ECU code where each task is allocated in the separate block. Nevertheless, taking place interdependence define connectivity of functioning of a network.

The period of circulation of blocks is defined by frequency of the processor and makes about 10 ms.

Information transferred by the control unit of switching of a check point (N15/6) on the tire CAN

ME-SFI control unit (N3/10)/CDI (N3/9):
· Emergency останов engine;
· Current transfer;
· Demanded transfer;
· Mode of emergency functioning of transmission;
· A creeping torque;
· Switching in a mode of manual control;
Control panel (А1):
· Current transfer;
· Transmission mode;
· Messages on mistakes/refusals.
ESP/BAS control unit (N47-5):
· Transmission option;
· Current transfer;
· Demanded transfer.
Information accepted by the control unit of switching of a check point (N15/6) with the tire CAN
Control panel (А1):
· Opening/closing of a driver's door;
· Temperature of external air.
ME-SFI control unit (N3/10)/CDI (N3/9):
· Provision of a pedal;
· Emergency operation;
· Functioning темпостата;
· Idling turns;
· Activation of the limiter of speed;
· Activation of the limiter of turns of the engine;
· Inertial otsechka of supply of fuel;
· Engine torque;
· Oil temperature.
Forward SAM control unit (N10/1):
· Awakening function;
ESP/BAS control unit (N47-5):
· Frequency of rotation of wheels;
· Sensor switch of stoplights;
· Parking brake;
· A signal for the ESP control unit.
EIS control unit (N73):
· Condition of contact plugs.