I had been having strange electrical gremlins for the last year, it always happened when I turned on my headlights. Sometimes I would get an oil light, sometimes a battery light....sometimes both at the same time. Well today I got my new headlight switch in (Thanks Rock Auto) and changed it out...easy job BTW
I noticed how much more definite the switch felt now...so I decided to take the old switch apart to see how it looked inside.......Nightmare
Now I see why I had strange things going on. There was a spring and contactor laying across a pair of contacts...surprised I didn't have some blown fuses or worse