Transmission Oil Auxiliary Pump Control Unit, Component Description - GF27.19-D-4030HAG
TRANSMISSION 722.9 in MODEL 906 with CODE (MJ7) ECO start
Shown: Electric transmission oil pump (M42)
Location
The transmission oil auxiliary pump control unit is integrated into the electric transmission oil pump.
Task
General
The transmission oil auxiliary pump control unit controls the electric transmission oil pump. When the internal combustion engine is stopped, the electric transmission oil pump takes over the oil supply of the control and actuator part of the transmission.
CAN data bus
The transmission oil auxiliary pump control unit is connected over the engine compartment-CAN (CAN C) to the control unit (Y3/8n4) and exchanges data with them.
Input and output signals
The following input signals are evaluated by the transmission oil auxiliary pump control unit and the corresponding output signals are output:
- Direct input signals
- Direct output signals
- CAN input signals
- CAN output signals
Direct input signals
- Circuit 87
- Circuit 31
Direct output signals
- None
CAN input signals
Control unit
- Electric transmission oil pump, requirement
CAN output signals
Control unit
- Diagnostic data