Electric Control Unit, Component Description - GF27.19-D-5145H
Transmission 722.6 in MODEL 906.111/113/131/133/135/153/155/211/213/231/233/235/253/255/611/613/631/633/635/637/653/655/657/711/713/731/733/735
Location
The electric control unit is screwed onto the shift plate valve body.
Design
The electric control unit consists of a plastic supporting body on which the following electrical components are located:
- The RPM sensors
- The control solenoid valves
- The shift solenoid valves
- Torque converter lockup PWM solenoid valve
- The 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 control 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.