GF27.19-P-4013-02N

VGS [fully integrated transmission control], task

TRANSMISSION 722.9 in MODELS 215, 220

Input and output signals 11 Connector X11/4 Data link connector Y3/8n1 Turbine speed sensor (VGS) Y3/8n2 Internal speed sensor (VGS) Y3/8n3 Output speed sensor (VGS) Y3/8n4 Fully integrated transmission control (VGS) control unit Y3/8s1 Selection range sensor (VGS) Y3/8y1 Working pressure control solenoid valve (VGS) Y3/8y2 K1 clutch control solenoid valve (VGS) Y3/8y3 K2 clutch control solenoid valve (VGS)
		P27.19-2211-76

Y3/8y4 K3 Clutch control solenoid valve (VGS) Y3/8y5 B1 Brake control solenoid valve (VGS) Y3/8y6 B2 brake control solenoid valve (VGS)

Y3/8y7 B3 brake control solenoid valve (VGS) Y3/8y8 Torque converter lockup clutch control solenoid valve (VGS)

P27.19-2209-09

Shown up to 31.5.04 A1 Instrument cluster N3/10 ME-SFI [ME] control unit N15/5 Electronic selector lever module control unit

N47-5 ESP, SPS [PML] and BAS control unit N63/1 DTR control unit N73 EIS [EZS] control unit

N93 Central gateway control unit Y3/8n4 Fully integrated transmission control (VGS) control unit

Task The fully integrated transmission control (VGS) control unit (Y3/8n4) determines the instantaneous operating condition of the vehicle and controls all the gear change sequences taking into account the ease of shifting and driving situation. It receives operating data as internal transmission input signals from the: Selection range sensor (VGS) (Y3/8s1) Transmission oil temperature sensor (VGS) (Y3/8s2), which is integrated in the fully integrated transmission control (VGS) control unit (Y3/8n4) Turbine speed sensor (VGS) (Y3/8n1) Internal speed sensor (VGS) (Y3/8n2) Output speed sensor (VGS) (Y3/8n3) In addition via the Controller Area Network bus Class C (engine compartment) (CAN-C) there is a connection to the: Instrument cluster (A1) ME-SFI [ME] control unit (N3/10) Electronic selector lever module control unit (N15/5) ESP, SPS [PML] and BAS control unit (N47-5)

DTR control unit (N63/1) up to 31.5.04 or DTR control unit (A89) as of 1.6.04 EIS [EZS] control unit (N73) The fully integrated transmission control (VGS) control unit (Y3/8n4) assumes control of the following control solenoid valves depending on the processed input signals: Working pressure control solenoid valve (VGS) (Y3/8y1), for load-dependent and gear-dependent operating pressure regulation Control solenoid valve coupling K1 (VGS) (Y3/8y2) Control solenoid valve coupling K2 (VGS) (Y3/8y3) Control solenoid valve coupling K3 (VGS) (Y3/8y4) Brake control solenoid valve B1 (VGS) (Y3/8y5) Brake control solenoid valve B2 (VGS) (Y3/8y6), which also actuates the multi-disk brake, brake pressure regulation for reverse gear Brake control solenoid valve B3 (VGS) (Y3/8y7) Torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8)

This involves the processing of the following data from other systems: ME-SFI [ME] control unit (N3/10) Active downshift for heating up the catalytic converter (KAT) Driving off 1st. gear, for heating of catalytic converter Shift line displacement for heating up the catalytic converter Specified gear, and lower/upper limit for heating up the catalytic converter Emergency operation of the ME fuel injection and ignition system (motor electronics) (ME), the pedal value is limited to approx. 20 %, the driveability of the vehicle is assured Cruise control governs, a specific shifting strategy for cruise control mode is filed in the fully integrated transmission control (VGS) control unit (Y3/8n4) Engine coolant temperature, used as a substitute value if the transmission oil temperature sensor (VGS) (Y3/8s2) malfunctions Engine oil temperature, shift limitation is canceled

Requirement torque for Electronic Stability Program (Electronic-Stability-Program) (ESP), torque reduction or torque increase taking into account directional stability and road adhesion Kickdown Pedal value Request for torque converter lockup clutch "Open" in the heating up phase of the catalytic converter, to increase engine speed Engine idle specified speed for the actuation of the torque converter lockup clutch Engine speed, for slip calculation of torque converter lockup clutch and for start of pressure calculation by the fully integrated transmission control (VGS) control unit (Y3/8n4) Speed limiter function active, adaptations in the fully integrated transmission control (VGS) control unit (Y3/8n4) switched off Engine torque Electronic selector lever module control unit (N15/5) Selector lever position

Transmission mode switch (S16/5) ESP, SPS [PML] and BAS control unit (N47-5) Signal of stop lamp switch (S9/1s1), change of shift strategy, brake the vehicle, the fully integrated transmission control (VGS) shifts down sooner Adjusted brake torque, change of shift strategy, brake the vehicle, the fully integrated transmission control shifts down earlier Wheel speeds and direction of rotation, substitute values in event of output speed sensor (VGS) (Y3/8n3) malfunction ESP request shift into "N" (neutral), power flow interruption, transmission/rear axle Vehicle lateral acceleration at center of gravity, adaptation of shift strategy, detection of dynamic driving style DTR control unit (N63/1) up to 31.5.04 or DTR control unit (A89) as of 1.6.04 Shift line displacement, brake the vehicle, the fully integrated transmission control shifts down earlier

Active downshift, brake the vehicle, the fully integrated transmission control shifts down earlier. EIS [EZS] control unit (N73) Refrigerant compressor (A9) ON Circuit 50, influencing fault storage Torque requirement of refrigerant compressor (A9), torque correction Central gateway control unit (N93) Refrigerant compressor (A9) ON Circuit 50 Torque requirement of refrigerant compressor (A9), torque correction The following information is output to other systems: Instrument cluster (A1) Selector lever position for gear indicator (A1p12) Program selection at the transmission mode switch (S16/5) for gear indicator (A1p12)

ME-SFI [ME] control unit (N3/10) Engine torque requests, engine intervention when shifting Emergency-running mode for fully integrated transmission control Starting release in selector lever position "P", "N" Transmission variant, recognition of basic variants, difference in gear ratios Actual gear engaged/target gear, i.e. engaged gear, gear to be shifted, can be shown via STAR DIAGNOSIS Torque converter lockup clutch status ESP, SPS [PML] and BAS control unit (N47-5) Wheel torque factor, overall gear ratio Transmission variant, recognition of basic variants, difference in gear ratios Actual gear engaged/target gear, i.e. engaged gear, gear to be shifted, can be shown via STAR DIAGNOSIS

DTR control unit (N63/1) up to 31.5.04 or DTR control unit (A89) as of 1.6.04 Transmission variant, recognition of basic variants, difference in gear ratios Actual gear engaged/target gear, i.e. engaged gear, gear to be shifted, can be shown via STAR DIAGNOSIS Wheel torque factor, overall gear ratio EIS [EZS] control unit (N73) Selector lever position for the actuation of the backup lamp function Central gateway control unit (N93) Selector lever position for the actuation of the backup lamp function Diagnosis