Component description for transmission oil auxiliary oil pump control unit - GF27.19-P-4031AHE
TRANSMISSION 722.9 (except 722.930) in MODEL 205
Shown on the electric auxiliary oil pump (M42)
Location
The automatic transmission fluid auxiliary oil pump control unit is integrated into the electric auxiliary oil pump.
Task
General
The automatic transmission fluid auxiliary oil pump control unit controls the electric auxiliary oil pump. When the internal combustion engine is stopped, the electric auxiliary oil pump takes over the oil supply of the control and actuator part of the transmission.
CAN bus
The automatic transmission fluid auxiliary oil pump control unit is connected via drive train CAN (CAN C1) to the fully integrated transmission control unit (Y3/8n4) and exchanges data with this.
Input and output signals
The following input signals are evaluated by the automatic transmission fluid auxiliary oil pump control unit and the corresponding output signals are output:
- Direct line
- Drive train CAN (CAN C1)
Direct line
- Terminal 87
- Circuit 31
Drive train CAN
Signals from
- Fully integrated transmission control unit
Evaluation of input factors
The read-in input factors are evaluated by the fully integrated transmission control unit.
Actuation of components
The actuation of the components takes place via the following connections:
- Direct line
- Drive train CAN
Direct line
- None
Drive train CAN
Signal to
- Fully integrated transmission control unit
| Designation | Unit | Value | Tolerance range | Remarks |
|---|---|---|---|---|
| Automatic transmission fluid auxiliary oil pump control unit (N89) | ||||
| Voltage supply | V | 12 | ||
| Operating temperature range | °C | +10 - 120°C |
| Wiring diagram for auxiliary transmission oil pump control unit | PE27.19-P-2104-97FBA |