GF27.19-P-4030LEH Transmission Oil Auxiliary Pump Control Unit, Component Description

GF27.19-P-4030LEH Transmission oil auxiliary pump control unit, component description
- TRANSMISSION 722.950

Component Identification:

Location
The transmission oil auxiliary pump control unit is integrated in 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 has stopped the electric transmission oil pump takes over the oil supply of the control part and actuator part of the transmission.

CAN data bus
The transmission oil auxiliary pump control unit is connected to the fully integrated transmission control unit (VGS) (Y3/8n4) via the drive train CAN (CAN) and exchanges data with it.

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 (connected circuit 15) ON
- Terminal 31

Direct output signals
- None

CAN input signals
Fully integrated transmission control unit (VGS) (Y3/8n4)
- Electric transmission oil pump, request

CAN output signals
Fully integrated transmission control unit (VGS) (Y3/8n4)
- Diagnostic data