Rear Fog Light Electrical Fault
The rear fog light on my 1985 110 CSW will not work. Yesterday, I verified that there was 12 volts present at the switch (Purple+Blue wire) with the low beams on but this voltage drops to zero when I turn the fog light switch on. I tried disconnecting the lamp unit thinking that maybe that could be the issue but still the same results. I also checked the grounding wire, but that is good because it is a common ground with all other tail lamps and all the others work.
I'm out of things to check and am seeking some advice if anyone has any.