Electrical Control Unit

Arrangement/Purpose/Design/Function

Component Illustration:

Position
Screwed onto the shift plate.

Task
To receive various input signals and to convert the control module information into hydraulic functions.

Design
The electric valve control unit (Y3/6) consists of a plastic shell which houses the RPM sensors (Y3/6n2, Y3/6n3), regulating solenoid valves (Y3/6y1, Y3/6y2), solenoid valves (Y3/6y3, Y3/6y4, Y3/6y5), the PWM solenoid valve (Y3/6y6), the starter interlock contact (Y3/6s1) and the transmission oil temperature sensor (Y3/6b1). Conductor tracks integrated into the shell connect the electric components to a plug connection (11).

This 13-pin plug connection (11) establishes the connection to the vehicle-side cable harness and to the ETC control module (electronic transmission control) (N15/3) by means of a bayonet lock.
With the exception of the solenoid valves, all other electric components are fixed to the conductor tracks.

Function
Signals from the ETC control module (N15/3) are converted into hydraulic functions in the electric valve control unit (Y3/6). The RPM sensors (Y3/6n2, Y3/6n3), starter interlock contact (Y3/6s1) and transmission oil temperature sensor (Y3/6b1) of the electric valve control unit (Y3/6) supply the ETC control module (N15/3) with input signals. The solenoid valves are controlled by the ETC control module (N15/3) and trigger the hydraulic functions.

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