That is true, but in this case im not sure if its relevant :s (may be wrong )
According to the diagram the switch on the stalk sends 12v to the fog light switch which then if switched on , sends 12v to the relay, then to the light ( According to the diagram)
he stated in his post that the fog switch is receiving this 12v when the stalk switch is set to an 'on' position , so this means ( again according to the diagram lol )
that either the switch is broken ( he didn't say if the 12v came out when the switch was on )
A wire has broke
or the relay is faulty.
Lol i really dont want to sound like some kinda smarty pants.... just following that diagram 
