Dashboard not working
 

Hi,

Ever since a few weeks ago a day with a lot of really heavy rain, my dashboard most of it wont work. I get all the warning lights come on when before starting the car, but when car starts pretty much nothing works on dash, including any numbers, speedo and rev , turn signals etc. All I get a dash warning light. I tried getting another used dashboard and pairing it up and that didnt fix it, I tried changing my CEM Unit to a factory refurbished unit ( I posted my old one so they could take off all the settings and put it on the new one), and still same issue.
Its a 2005 P1 platform S40 T5
Im not sure what to do next. Any ideas ?

Thanks

Moh