Last night was not mucho fun. Rear running lights of my truck went out. 2000 k3500 OBS former plow whore.
Fuse is good, front running lights work, and switching them on also lights up the dash. Trailer running lights also went on vacation during this incident. Didn't have a test light to probe the harness last night. Unplugged the trailer, still no rear running lights.
Anyone ever experience this in an 88-98 GM truck?