Originally Posted by moosejr

So,,, first, thanks to everyone for their input. I have successfully resolved the issue, , ,and learned a few things. . .

1. That bolt by the A/C drier does not exist on my car.
2. I have never seen where they separated grounds like they do in the wiring diagram for this car. That is why I as having so much trouble understanding what was going on, ,,two different ground connections going to the same light housing.
3. There is no lug or pigtail of any kind, that I could find, on the passenger side of the car. My build date is 7/99, so unless there was a mid-year change in the wiring harness, ,,or maybe a previous owner did a harness change, , ,I don't know.
4. I ruled out the combination switch because I would get the same horn sounding when turning on the fog lights.

Ultimately, I back-chased a ground from the left headlight housing to the ground point below the fuse block on the left fender,, ,and all is good. I hesitated to do this because I hate to put a band-aid on a problem instead of fixing the original problem. In this situation, there is something wrong in the wiring harness somewhere, but this patch is the only way I can see to resolve it.

Thanks again.