Ok, see, you didn't say that you could hear the pump running before.

As to bleeding the system, (in your other thread - why did you start two threads?) it is my understanding that the system relieves all pressure when the top is all the way up AND when it is all the way down.

I don't see where bleeding is needed - ever. BUT I COULD be wrong!

If the pump really is running, then I agree - the sensors that allow the process to start (trunk lid, divider, etc.) are fine.

But now I wonder about the sensors on the cylinders themselves. The various (I"ll call them "Travel" sensors) sensors in the system tell the computer about the position of various cylinders - and from that, the computer makes the decsions about what valves to open and close.

Perhaps one sensor is lying to the computer, causing it to activate the wrong valve. Time for some real troubleshooting! I don't envy you or the mechanic who tackles this one.