4l60e EPC Solenoid connection

[Osteoblast]

Hi,

I'm replacing the wireharness and all solenoids.
But now I wonder how the EPC solenoid is connected?

There's a connector with a purple and blue cable. I can plug it in either way.
Does it matter how the EPC solenod is connected?
How can I tell how I have to connect it?

Wireharness: https://rostrapowertrain.com/wp-content/uploads/Manuals/Form4147G.pdf

EPC (FORCE MOTOR) WHITE CONNECTOR PURPLE/BLUE WIRES

Thanks!