Ok follow up to this.
comfort unit replaced, old one was totally knackered due to water ingress
i think the windows have been open for some time with the amount of water that was inside the black box.
Using my xtool obd scanner I was able to test the solenoids in the pump and I can here them all ticking.
The main faults the scanner is picking up is that the door modules aren’t there. Now I’m thinking the door modules are either disconnected or suffered the same fate as the comfort module
Still no locks, windows or roof working...