Help. My tail Light is not working
So in my 02 Wrangler X, I have recently had a problem. Also, I am not familiar with the wiring layout of the wrangler. A few years ago my grounds went out in my tail lights/ brake lights, so there are "new" grounds run from the two rear bulb mounting plates to the chassis of the vehicle, this solved my faulty tail light problem ~3 yrs ago. Recently though, my right tail light has stopped functioning? the turn signal works fine which is weird because it is the 2nd filament of the same bulb, leading me to believe is was a bulb malfunction, so i switched bulbs from the right to left and vice versa. The left tail light/turn signal worked fine while the right turn signal still operated but the tail light did not. Im not sure where to start troubleshooting, I do have a multimeter if anyone has any suggestions. I appreciate any help.