03 sportster when i press back brake head light go's dim or burns fuse out what up help pleas...????

Question

when i press back brake head light go's dim or burns fuse out

un pluged brake switch and no problem ???????????

Answer 1

Replace the wiring for the rear brake, I know this is not what you want to hear, but you solved the problem with unplugging it.  Wait till the handle bars wiring starts to s***w up, then the fun really begins!

Answer 2

jumper the wiring harness with something to illuminate the brakes and see if it still does it.  if it works fine, it's your switch, if it still does it, you have a short to ground to hunt down

Answer 3

grounding out

Answer 4

You have a short.Check the wiring between the brake light switch and the tail light especially under the rear fender and where the wires go through the fender to the light.You probably have a bare spot on the wires that is grounding out when you apply the brakes.

Answer 5

Sounds like you have to much on one amp ,