Component Description For Transmission Oil Auxiliary Pump Control Unit - GF27.19-P-4030AHG

Transmission 722.9 in model 463 as of model year 2013 with code MJ7 (ECO start/stop function)

Fig 1: Transmission Oil Auxiliary Pump Control Unit Components Location - Transmission 722.9 In Model 463 As Of Model Year 2013 With Code MJ7

Courtesy of MERCEDES-BENZ USA

Location

The auxiliary transmission oil pump control unit is integrated in the electric transmission oil pump.

Tasks

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 bus

The transmission oil auxiliary oil pump control unit is connected via the drivetrain CAN (CAN C) 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 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

Terminal 87
Circuit 31

Direct output signals

None

CAN input signals

Fully integrated transmission control, control unit

Electric transmission oil pump, request

CAN output signals

Fully integrated transmission control, control unit

Diagnostic data

	Wiring diagram for transmission oil auxiliary pump control unit	Transmission 722.9 in model 463 as of model year 2013 with code MJ7 (ECO start/stop function)	PE27.19-P-2104-97ZGA
		Transmission 722.9 in model 463.342 as of model year 2017 with code MJ7 (ECO start/stop function)	PE27.19-P-2104-97ZBA