Contents: General information ↡ Processed parameters ↡
General information
Design of the electro-hydraulic shift control unit
2a - Hydraulic block; 11 - 13-pin connector; Y3/6 - Electric Shift Control Unit; Y3/6b1 - ATF temperature sensor; Y3/6n2 - 2 rpm sensor; Y3/6n3 - 3 rpm sensor; Y3/6s3 - Start interlock contact; Y3/6y1 - Solenoid valve for pressure modulation control; Y3/6y2 - Solenoid valve for pressure control of switching; Y3/6y3 - Solenoid valve for switching 1-2 and 4-5; Y3/6y4 - Solenoid valve for switching control 3-4; Y3/6y5 - Solenoid valve for switching control 2-3; Y3/6y6 - Electromagnetic valve of the PWM lock-up of the torque converter
Design of the selector module (without the function of sequential range selection - early models)
67 - Selector lever position lock; 68 - Mechanical switching disconnector D-4; 69 - R/P shift lock mechanism; 72 - Lever position indicator; S16/10 - AT position sensor; S16/10s1 - Reverse light switch sensor; Y66/1 - Electrical switch lock activator R/P
Information copied from the website: MERCEDESMAN.ru
Electrohydraulic shift control unit 13-pin connector terminal identification map
1 - 3 revolution sensor (Y3/6n3); 2 - Solenoid valve for modulating pressure regulation (Y3/6y1); 3 - 2 revolution sensor (Y3/6n2); 4 - Input signal of temperature sensor (Y3/6b1) and starter interlock contact (Y3/6s1); 5 -; 6 - Supply voltage of electromagnetic valves; 7 - Sensor supply voltage; 8 - 2-3 shift solenoid valve (Y3/6y5); 9 - 3-4 shift solenoid valve (Y3/6y4); 10 - Solenoid valve for switching pressure regulation (Y3/6y2); 11 - Solenoid valve (rotation converter locks) (Y3/6y6); 12 - Sensor housing; 13 - 1-2/4-5 shift solenoid valve (Y3/6y3)
The TCM determines the current vehicle operating parameters and controls sequential shifting based on shift ease and driving parameters.
The activation of the shift solenoid valves is carried out by a command from the TCM control unit. The required pressure value is calculated based on the incoming data and the necessary adjustment is made to the transmitted torque.
Processed parameters
Input and output signals of the AT 722.6 control unit and the CAN data bus
N15/3 - TCM; X11/4 - DLC connector; Y3/6b1 - ATF temperature sensor; Y3/6n2 - Speed sensor 2; Y3/6n3 - Speed sensor 3; Y3/6s3 - Starter interlock contact; Y3 / 6y1-Solenoid valve for controlling pressure modulations; Y3 / 6Y2-E/M switching pressure control valve; Y3 / 6y3-E / M switching valve 1-2 and 4-5; Y3 / 6Y4-E / M switch valve 3-4; Y3 / 6y5-E / M switch valve 2-3; Y3 / 6Y6-E/M PWM torque converter lock valve; A1 - Instrument cluster; CAN - Engine Compartment Network Bus; N3/10 - ECM ME-SFI; N3/9 - ECM CDI; N15/3 - TCM; N15/5 - Electronic selector module; N47 - ETS Traction Control Module; N73 - Electronic Ignition Switch EIS Control Module
Control module ME-SFI (N3/10)/CDI (N3/9)
- Engine torque;
- Gear shifting;
- Activating the driving mode;
- Emergency mode;
- Tempostat functioning;
- Activating the speed limiting system;
- Starter operation;
- Activating kickdown mode;
- Selector lever position P/N;
- Transmission Mode Switch Sensor (S16/5);
- Engine operating parameters;
- Transmission option.
Electronic selector module (N15/5)
- Selector lever position;
- Transmission Mode Switch Sensor (S16/5);
- Kickdown mode activation switch sensor (S16/6).
ETS Control Module (N47)
- Wheel speed;
- Brake torque;
- The fact of pressing the foot brake pedal;
- Parking brake status;
- Transmission option;
- Information about the selected gear.
EIS Control Module (N73)
- Condition of contact terminals;
- Transmission option.
Instrument cluster (A1)
- Selector lever position/gear selected.