GF27.19-P-5145AHM Electric Controller Unit, Component Description

GF27.19-P-5145AHM Electric controller unit, component description
- TRANSMISSION 722.904/906/999
- refinement package
- as of model year 09

Component Identification:

Location
The electric controller unit (VGS), valve housing, intermediate panel and valve body are joined together by means of bolts. The electric controller unit (VGS) is installed under the transmission housing and is constantly flushed by transmission oil for cooling.

Design
The electric controller unit (VGS) consists of a supporting body made of plastic and it contains the following components:

- Turbine speed sensor (VGS) (Y3/8n1)
- Internal speed sensor (VGS) (Y3/8n2)
- Output speed sensor (VGS) (Y3/8n3)
- Fully integrated transmission control (VGS) control unit (Y3/8n4) with integrated transmission oil temperature sensor (VGS) (Y3/8s2)
- Selection range sensor (VGS) (Y3/8s1)
- Working pressure control solenoid valve (VGS) (Y3/8y1)
- K1 clutch control solenoid valve (VGS) (Y3/8y2)
- K2 clutch control solenoid valve (VGS) (Y3/8y3)
- K3 clutch control solenoid valve (VGS) (Y3/8y4)
- B1 brake control solenoid valve (VGS) (Y3/8y5)
- B2 brake control solenoid valve (VGS) (Y3/8y6)
- B3 brake control solenoid valve (VGS) (Y3/8y7)
- Torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8)

The printed-conductor foil which is inserted in the supporting body makes the connection between the electrical components and the 6-pin plug.

Apart from the solenoid valves all the other electrical components are permanently connected to the printed-conductor foil. The connection to the cable set on the vehicle side is made with a 6-pin plug connection with a bayonet lock.

Component Identification:

Function
The electric controller unit (VGS) receives the various input signals and converts the control unit information into hydraulic functions.