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

GF27.19-P-5145ACM Electric controller unit, component description
- TRANSMISSION 722.643/649
- refinement package
- as of model year 09

Component Identification:

Location
The electric controller unit is screwed onto the shift plate valve body.

Component Identification:

The electric controller unit consists of a plastic supporting body on which the following electrical components are located:

- Speed sensors
- Control solenoid valves
- Shift solenoid valves
- Torque converter lockup PWM solenoid valve
- Starter lockout contact
- Transmission oil temperature sensor

Conductor tracks which are laid in the supporting body make the connection between the electrical components and a 13-pin plug socket.
The connection to this cable set at the vehicle end and to the ETC [EGS] control unit (N15/3) is made via this 13-pin plug. Except for the solenoid valves all the electrical components are rigidly connected to the conductor tracks.

Function
Signals from the ETC [EGS] control unit are converted into hydraulic functions in the electric controller unit. The rpm sensors, the starter lockout contact and transmission oil temperature sensor supply input signal to the ETC [EGS] control unit.

The solenoid valves are actuated by the ETC [EGS] control unit and trigger the hydraulic functions.