Can you help me with my Peugeot 406?

Hi
I have just bought a peugeot 406 Diesel Estate executive for pittance and it has a few issues, if anyone can help, please do?
It has digital auto climate control, everything works on it apart from the fan speed adjustment I get nothing, no fans at all? Also I have no screenwash, I pull the stalk and there is wiper action but no noise from the washers. I have checked all fuses and they are ok, the only thing I have found is a plug dangling doing nothing near the offside fog light in the engine bay?
PLEASE HELP>THANK YOU