Hi guys! Help help! lol

I have changed radiator water sensor,radiator speed control switch and my fan is working ok when testing manualy!! but i am still getting this fault p0481 code any ideas??:bang::bang::bang:


My fan wont come on when driving either??

Some info & advice on that code if it helps :-
http://www.bba-reman.com/content.aspx?content=DTC_P0481

vehicle details.

Doblo 1.9 jtd! Cheers!