I have MK2 Petrol ( 2.0L ). Somehow Radiator fan is not working ( as far as I know it never was... ..since I bought it year ago ). So the first step was to check the fuse... then to look for relay. Fuse is OK, but there is no relay for the fan in the engine fuse box! ( contacts are not connected ). I had a look in Haynes manual and diagram shows that there are 3 wires going to the fan +12V, Ground, signal from ECU. So I assume that relay is fitted in the fan. How can I check the fan? Any idea what is the voltage of "SIG" from ECU? is it just 12V for the relay? I've checked engine te