How old is the switch? Any corrosion that you can see? did you check the fuse?
If that all checks out use your multimeter to investigate further ...
- do you have a good ground?
- do you have supply voltage at the terminal block?
- do you have continuity at each switch position?
I assume you've confirmed that the light and wiring to it is good? You should be able to apply voltage to the appropriate terminal block position to do that.
If that all checks out use your multimeter to investigate further ...
- do you have a good ground?
- do you have supply voltage at the terminal block?
- do you have continuity at each switch position?
I assume you've confirmed that the light and wiring to it is good? You should be able to apply voltage to the appropriate terminal block position to do that.