1990 Porsche 944 S2 convertible wiring diagram

[Lerichio]

Hello,

My brother inlaw has a 1990 944S2 convertible with an electric roof not operating.
The motors, opening switch have been tested independently and work.
So we have now come to the conclusion that we have somewhere in the wiring loom a non functioning cable.
I have search the net for a wiring diagram with no real succes.

Would someone on this forum has a PDFs of the roof wiring diagram ?

Thank you
Thomas