For years I have not had a right trailer turn signal/brake light so I was told it was the FCM. I replaced the FCM a couple months ago and still have the issue, could it also be the multifunction switch and where the heck is it located?

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!