(Component Description For Fully Integrated Transmission Control Unit - GF27.60-P-5165AHH)
Transmission 725.017 in model 205
View of fully integrated transmission control controller unit (Y3/8) from above
Location
The fully integrated transmission control unit is integrated in the fully integrated transmission controller unit which is located in the bottom of the automatic transmission.
Tasks
The fully integrated transmission control unit determines the current operating condition of the vehicle and actuates all gear change sequences taking shifting comfort and the driving situation into consideration.
Flash programming
The transmission control system in the fully integrated transmission control unit (VGS) is flashable i.e. the software in the control unit can be changed (replaced). The software required for control unit programming is stored on the diagnosis software DVD.
The fully integrated transmission control unit is connected over the drive CAN (CAN C1) to the vehicle network and exchanges data with other control units.
Input and output signals
Input signals are evaluated by the fully integrated transmission control unit and the appropriate output signals are generated.
- Direct input/output signals
- CAN input/output signals
| Input factors over a direct line from | Output factors over a direct line to | Supplemental information |
|---|---|---|
| Emergency-P from electronic ignition lock control unit (N73) | - | - |
| Pressure sensor (Y3/8b5) | - | - |
| Turbine wheel RPM sensor (Y3/8n1) | - | - |
| Rpm sensor for internal input speed (Y3/8n2) | - | - |
| Output shaft RPM sensor (Y3/8n3) | - | - |
| Transmission oil temperature sensor (Y3/8s2) | - | Integrated into the fully integrated transmission control unit (Y3/8n4). |
| Park pawl position sensor (Y3/8s4) | - | - |
| - | Electric auxiliary oil pump (M42) | - |
| - | Park pawl lift solenoid (Y3/8l1) | - |
| - | Lubrication pressure solenoid (Y3/8y12) | - |
| - | K81 clutch control solenoid (Y3/8y13) | - |
| - | K38 clutch control solenoid (Y3/8y14) | - |
| - | K27 clutch control solenoid (Y3/8y15) | - |
| B08 multidisk brake control solenoid (Y3/8y16) | - | |
| B05 multidisk brake control solenoid (Y3/8y17) | - | |
| B06 multidisk brake control solenoid (Y3/8y18) | - | |
| Working pressure solenoid (Y3/8y19) | - | |
| Torque converter lockup clutch solenoid (Y3/8y20) | - | |
| Engine clutch solenoid K0 (Y3/8y21) | - |
| Input factors over drive CAN (CAN C1) from | Initial parameters over drive CAN (CAN C1) to | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | Via the user interface CAN (CAN HMI), electronic ignition lock control unit (N73), chassis FlexRay (Flex E) and powertrain control unit (N127) |
| CDI control unit (N3/9) (diesel engine) or ME-SFI [ME] control unit (N3/10) (gasoline engine) | CDI control unit (N3/9) (diesel engine) or ME-SFI [ME] control unit (N3/10) (gasoline engine) | - |
| Trailer recognition control unit (N28/1) (with CODE 550 (Trailer hitch)) | - | Via the interior CAN (CAN B), electronic ignition lock control unit (N73), chassis FlexRay (Flex E) and powertrain control unit (N127) |
| Electronic Stability Program control unit (N30/4) | Electronic Stability Program control unit (N30/4) | Via the chassis FlexRay (Flex E) and powertrain control unit (N127) |
| Left lower control panel (N72/4) | - | Over the LCP-LIN (LIN A3), Audio/COMAND control panel (A40/9), telematics CAN (CAN A), head unit (A26/17), user interface CAN (CAN HMI), electronic ignition lock control unit (N73), periphery CAN (CAN PER), powertrain control unit (N127) |
| Electronic ignition lock control unit (N73) | Electronic ignition lock control unit (N73) | Via the chassis FlexRay (Flex E) and powertrain control unit (N127) |
| Steering column tube module control unit (N80) | - | Via the chassis FlexRay (Flex E) and powertrain control unit (N127) |
| Powertrain control unit (N127) | Powertrain control unit (N127) | - |
| Wiring diagram for fully integrated transmission control unit | PE27.19-P-2103-97FBA |