Mercedes M-Class W163

since 1997 of release

Repair and car operation

The general principles of functioning of system the transmission, operating signals

General information

Scheme/design of an arrangement of the main components of an electronic control system by transmission and an ID card of plugs of the AT 13-contact socket are presented on illustrations.

Scheme of an arrangement of components of an electronic control system of AT

N15/3 — the Module of management of transmission (TCM) S16/6 — the Sensor switch of activation of the kickdown mode	Y3/6 — Electric knot of the electrohydraulic control unit switchings

Design of the electrohydraulic control unit switchings

Design of the selector module (without function of a consecutive choice of ranges, - release models till 31.08.99)

Card of identification of plugs of the 13-contact socket of the electrohydraulic control unit switchings

TCM (N15/3) defines the current working parameters of a vehicle and exercises administration of consecutive gear shifting, proceeding from simplicity of switching and movement parameters.

Activation of electromagnetic valves of switching is carried out at the command of the ETC control unit (N15/3). The demanded size of pressure is calculated on the basis of entering data and necessary adjustment adjustment of a transferred torque.

Processed parameters

Illustrative material by a data exchange principle in a control system of AT it is presented on an illustration.

Entrance and target signals of the AT 722.6 control unit and tire of data exchange of CAN

N15/3 — TCM X11/4 — the DLC Socket Y3/6b1 — the Sensor of temperature of ATF Y3/6n2 — the Sensor of turns 2 Y3/6n3 — the Sensor of turns 3 Y3/6s3 — Contact of blocking of a starter Y3/6u1 — the Electromagnetic valve of management of pressure modulations Y3/6u2 — Ø/m the valve of management of pressure of switchings Y3/6u3 — Ø/m the valve of switchings 1-2 and 4-5 Y3/6u4 — Ø/m the valve of switching 3-4

Y3/6u5 — Ø/m the valve of switching 2-3 Y3/6u6 — Ø/m the ShIM valve of blocking of the hydrotransformer А1 — the Combination of devices CAN — the Network tire of an impellent compartment N3/10 — ECM ME-SFI N3/9 — ECM CDI N15/3 — TCM N15/5 — the Electronic selector module N47 — the Module of management of antiprobuksovochny system ETS N73 — the Module of management of the electronic switch of ignition of EIS

ME-SFI control unit (N3/10)/CDI (N3/9)

• Torque developed by the engine;
• Gear shifting;
• Emergency operation;
• Functioning темпостата;
• Activation of system of restriction of speed;
• Starter functioning;
• Kickdown mode activation;
• Working parameters of the engine.

Electronic selector module (N15/5)

• Position of the lever of the selector;
• Sensor switch of modes of transmission (S16/5);
• Sensor switch of activation of the kickdown mode (S16/6).

ETS control unit (N47)

• Frequency of rotation of wheels;
• Torque of brake mechanisms;
• Fact of squeezing of a pedal of a foot brake;
• Condition of the parking brake.

EIS control unit (N73)

• Condition of contact plugs;
• Transmission option.

Combination of devices (А1)

• Position of the lever of the selector / the chosen transfer.

ETS control unit (N47)

• Transmission option;
• Information on the chosen transfer.

ME-SFI control unit (N3/10)/CDI (N3/9)

• Torque developed by the engine;
• Emergency operation;
• Activation of a mode of movement;
• Position of the lever of the R/N selector;
• Sensor switch of modes of transmission (S16/5);
• Transmission option.