The roof doesn't work at all

[curtis505]

Hi, the roof on my 2000 Boxster has recently gone bad. It doesn't open at all. Here is the symptoms.

1. The error light is on.
2. When I unlatch it, the windows don't drop.
3. Try to pull the relay and put it back, if I press the relay really hard the error light goes off, but can go on again quickly, I try to unlatch the roof while the light is off, but still nothing happened.
4. The parking brake light is on, the windows works fine when opening the door, so these 2 possibilities should be ruled out ?
5. Sent the latch switch to a technician and after inspected it is fine.

Any idea what was happening ? I read the forum but seems can't find someone with same problem I have.