Component Description For Fully Integrated Transmission Control Unit - GF27.60-D-5165TSA
Transmission
725.0 in model 907
Fully integrated transmission control (VGS) electric controller unit from above
Location
The fully integrated transmission control unit is integrated in the fully integrated transmission control (VGS) electric controller unit, which is located at the bottom in the automatic transmission.
General
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 complete software in the control unit can be changed (replaced).
The software required for control unit programming is stored on the diagnosis software DVD.
CAN bus
The fully integrated transmission control unit is connected to the vehicle's CAN network via the drive CAN (CAN C) and exchanges data with other control units. Input and output signals
The following 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
Direct input/output signals
The following table lists the input and output parameters of the component parts which are read in or issued over direct lines by the fully integrated transmission control unit.
| Input factors over a direct line | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Circuit 30 | - | - |
| Emergency-P from electronic ignition lock (EZS) control unit (N73/8) | - | - |
| Pressure sensor (N15/15b5) | - | - |
| Turbine wheel rpm sensor (N15/15n1) | - | - |
| Internal input speed rpm sensor (N15/15n2) | - | - |
| Output shaft rpm sensor (N15/15n3) | - | - |
| Transmission oil temperature sensor (N15/15s2) | - | Integrated into fully integrated transmission control unit (N15/15n4). |
| Park pawl position sensor (N15/15s4) | ||
| - | Electric auxiliary oil pump (M42) | - |
| - | Park pawl lift solenoid (N15/15l1) | |
| - | Lubrication pressure solenoid (N15/15y12) | - |
| - | K81 clutch control solenoid (N15/15y13) | - |
| - | K38 clutch control solenoid (N15/15y14) | - |
| - | K27 clutch control solenoid (N15/15y15) | - |
| - | B08 multidisk brake control solenoid (N15/15y16) | - |
| - | B05 multidisk brake control solenoid (N15/15y17) | - |
| - | B06 multidisk brake control solenoid (N15/15y18) | - |
| - | Working pressure solenoid (N15/15y19) | - |
| - | Torque converter lockup clutch solenoid (N15/15y20) | - |
CAN input/output signals
The following table lists the input and output parameters of the control units, which are sent or received by the fully integrated transmission control unit via CAN.
| Input factors via drive CAN (CAN C) | Output factors via drive CAN (CAN C) | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | Via the user interface CAN (CAN HMI), electronic ignition lock (EZS) control unit (N73/8), suspension FlexRay (Flex E) and powertrain control unit (N127) |
| ME-SFI [ME] control unit (N3/36) | ME-SFI [ME] control unit (N3/36) | - |
| Trailer recognition control unit (N28/1) | Via the interior CAN (CAN B), electronic ignition lock (EZS) control unit (N73/8), suspension FlexRay (Flex E) and powertrain control unit (N127) | |
| ESP® control unit (N30/4) | ESP® control unit (N30/4) | Via the suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Electronic ignition lock (EZS) control unit (N73/8) | Electronic ignition lock (EZS) control unit (N73/8) | Via the suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Steering column tube module control unit (N80) | - | Via the suspension FlexRay (Flex E) and powertrain control unit (N127) |
| Powertrain control unit (N127) | Powertrain control unit (N127) | - |
| Driver's door control unit (N69/1) | Via the interior CAN (CAN B), electronic ignition lock (EZS) control unit (N73/8), suspension FlexRay (Flex E) and powertrain control unit (N127) |