Thanks for all your help, I have rectified the fault it was a loose wire in a multi pin wireing connection , :o smile every thing is working ;;H:

switch is ok , all controlls test good , the fan will work with a seperate power supply , this is why I was looking for a wireing diagram so that I may be able trace the wires, H;:)

:eek: it is the one that blows air into the cabin ., H

Hi I am new to all this new mode of comuniciation , but here goes 2003 discovery td5 ,loss of air conditioning, 1; fuses ok. changed any way 2;changed ac ecu from mine to friends td5 , his still works 3;changed resister assemble ------------------------- 4; changed relay x2 mounted on fan...