Stellmotor Heckklappe durchmessen

[audiot]

Hi Tux / Lemmy / All,
I just put the old Controller (J256) back in, and with that one, the Central windows button still works fine.
I'm worried I bought a broken one. So the symptoms are:

Replacement Controller J256:
- Whining noise from boot hydraulics when opening the roof handle; nothing else happens.
- Button for All Windows open/close doesn't work (but relays J291 and J292 sound clicking).
- When pulling up the Hand brake (not using the roof handle), all windows open app. 1 CM.

All these things don't occur with the other (old) Controller.

Is this Controller broken, or could there be another explanation?