Electric Differential Lock Control Unit, Component Description - GF35.40-P-2000AVJ
Model 253 with code 467 (Electronic locking differential)
View of model 253.9 at rear right
Location
The electronic differential control unit is installed on the right in the bottom of the trunk.
Task
The electronic differential control unit actuates the multidisk clutch of the differential lock via the differential lock actuator (M46/3).
Coding
The electronic differential control unit is codable and flashable, i.e. the complete software in the control unit can be updated.
CAN network
The electronic differential control unit is connected to the CAN network of the vehicle via the AMG CAN (CAN AMG) and exchanges data with other control units.
Input and output signals
The following input signals are evaluated by the electronic differential control unit and the corresponding output signals issued:
- Direct input/output signals
- CAN input/output signals
Direct input/output signals
Input and output factors for the following components are read in or output over direct lines by the electronic differential control unit:
| Input factors over a direct line | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Circuit 30 | - - | - - |
| Circuit 31 | - - | - - |
| Terminal 15 | - - | - - |
| - - | Differential lock actuator (M46/3) | - - |
| Differential lock actuator Hall sensor (M46/3l1) | - - | - - |
| Differential lock actuator temperature sensor (M46/3b1) | - - | - - |
CAN input/output signals
Input and output factors for the following control units are transmitted to or received by the electronic differential control unit via the CAN:
| Input factors via AMG CAN (CAN AMG) | Output factors via AMG CAN (CAN AMG) | Supplemental information |
|---|---|---|
| Supplemental Restraint System control unit (N2/10) | - - | Via vehicle dynamics CAN (CAN H) and AMG suspension control unit (N3/43) |
| Electronic Stability Program control unit (N30/4) | Electronic Stability Program control unit (N30/4) | Via chassis FlexRay (Flex E), powertrain control unit (N127), drivetrain CAN (CAN C1) and AMG suspension control unit (N3/43) |
| Electronic ignition lock control unit (N73) | - - | Via user interface CAN (CAN HMI) and AMG suspension control unit (N3/43) |
| ME-SFI control unit (N3/10) | - - | Via drivetrain CAN (CAN C1) and AMG suspension control unit (N3/43) |
| Fully integrated transmission control unit (Y3/8n4) | - - | Via drivetrain CAN (CAN C1) and AMG suspension control unit (N3/43) |
| Diagnostics connection (X11/4) | Diagnostics connection (X11/4) | Via diagnostic CAN (CAN D), electronic ignition lock control unit (N73), chassis FlexRay (Flex E) and powertrain control unit (N127), drivetrain CAN (CAN C1) and AMG suspension control unit (N3/43) |
| - - | Multifunction display (A1p13) | Via instrument cluster (A1), user interface CAN (CAN HMI) and AMG suspension control unit (N3/43) |
| Wiring diagram for differential lock control unit | PE27.19-P-2107-97DBA |