Well I feel pretty stupid.... today I went out to check the WSS... they were kind of loose and very very wet. I simply re-connected them and tried to clean them up as much as I could. I took the car out for a country road spin up to about 75 mph with some aggressive driving - lights never came on.
I'm guessing it must of been a combination of the loose connections and heavy rains last night? If the lights come on again, I might have to replace the hub assembly, but I'll wait it out as long as I can!
Thanks everyone
