I don't know why my brake lights aren't working
My brake lights aren't working in my
98 2500 series, could it be a fuse or
the brake light switch?
note the diagram, click on diagram to enlarge. Note fuse C 20 amp, check that fuse, hot all the time. Use a test light to check voltage at fuse. At the stop lamp switch in diagram, that top wire, primary color pink, hot all the time, Check for voltage. The bottom wire from stop switch, in diagram, primary wire color white, goes hot when you activate brake switch, check for voltage, use test light. are you saying none of your stop lamps work, hi or lo?
