Originally Posted by Gord&Fran
Are you still using the same switch as in this post?
Leo's switch

After 15 years, I wouldn't be surprised if it died. First thing to do is check that there is power to the switch.

If the switch is no longer working, ISTR that there was a thread on how to disassemble the switch and clean up the contacts. Maybe someone can find it?
No, that old switch was in my truck when I purchased it but was never used. We put a new one in.I will test out the switch.