Fully Integrated Transmission Control Electric Controller Unit Control Unit, Component Description - GF27.60-P-5120ANR
Transmission 725.0 (except 725.096) in model 257, 290
up to model year 2021
View of electric controller unit for fully integrated transmission control (Y3/8) from above
Location
The control unit for the electric controller unit of the fully integrated transmission control is located in the electric controller unit of the fully integrated transmission control, which is located in the bottom of the automatic transmission.
Tasks
General
The control unit for the electric controller unit of the fully integrated transmission control determines the instantaneous operating status of the vehicle and actuates all gear change sequences taking shifting comfort and the driving situation into consideration.
Flash programming
The transmission control in the control unit for the electric controller unit of the fully integrated transmission control is flashable, i.e., the complete control unit software can be exchanged (replaced). The software required for control unit programming is stored on the diagnosis software DVD.
CAN bus
The control unit for the electric controller unit of the fully integrated transmission control is connected over the drive CAN (CAN C1) to the vehicle's CAN network and it exchanges data with other control units.
Input and output signals
The following input signals are evaluated by the control unit for the electric controller unit of the fully integrated transmission control and the corresponding output signals are issued:
- Direct input/output signals
- CAN input/output signals
Direct input/output signals
Input and output signals for the following component parts are read in or issued over direct lines by the control unit for the electric controller unit of the fully integrated transmission control:
| Input factors over a direct line | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Circuit 30 | - | - |
| Emergency-P from electronic ignition lock control unit (N73) | - | - |
| Pressure sensor (Y3/8b5) | - | - |
| Turbine wheel RPM sensor (Y3/8n1) | - | - |
| Input speed RPM sensor (Y3/8n2) | - | - |
| Output shaft RPM sensor (Y3/8n3) | - | - |
| Transmission oil temperature sensor (Y3/8s2) | - | Integrated into control unit for electric controller unit of fully integrated transmission control (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) | - |
CAN input/output signals
Input and output parameters of the following control units are sent or received by the control unit for the electric controller unit of the fully integrated transmission control over CAN:
| Input factors via drive train CAN (CAN C1) | Initial parameters via drive train CAN (CAN C1) | 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) (with diesel engine) or ME-SFI [ME] control unit (N3/10) (with gasoline engine) | CDI control unit (N3/9) (with diesel engine) or ME-SFI [ME] control unit (N3/10) (with gasoline engine) | - |
| Trailer recognition control unit (N28/1) (for 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) |
| Drive Unit control unit (N145/1) | Drive Unit control unit (N145/1) | Only for model 257.361 and model 290 |
| 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), peripherals 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) | - |
| Left front door control unit (N69/1) | - | Via the interior CAN (CAN B), electronic ignition lock control unit (N73), chassis FlexRay (Flex E) and powertrain control unit (N127) |
| Wiring diagram for fully integrated transmission control electric controller unit | PE27.19-P-2110-97XBA |