Control Valve Pressure, Function - GF27.60-P-3017RFH

Transmission 724.2 in model 205, 253 

Function requirements, general 

• Terminal 15 ON
• Internal combustion engine or electric auxiliary oil pump (M42) On

The electronic ignition lock control unit (N73) transmits the status of circuit 15 via the chassis FlexRay (Flex E), the powertrain control unit (N127) and the drive train CAN (CAN C1) to the fully integrated transmission control unit (Y3/8n4).

Control valve pressure 

The regulation valve supply pressure is derived from the working pressure and limited to the maximum pressure of 5.5 bar. The following transmission control components are supplied by the control valve supply pressure:

• Working pressure control solenoid valve (Y3/8y1)
• K1 clutch control solenoid valve (Y3/8y2)
• K2 clutch control solenoid valve (Y3/8y3)
• K3 clutch control solenoid valve (Y3/8y4)
• B1 multidisk brake control solenoid valve (Y3/8y5)
• B2 multidisk brake control solenoid valve (Y3/8y6)
• B3 multidisk brake control solenoid valve (Y3/8y7)
• Wet clutch control solenoid valve (Y3/8y9)
• D/R switchover valve (Y3/8y10)
• Park pawl switchover valve (Y3/8y11)