I have a 2001 Harley Davidson road King the rear brake pedal does not work but when you squeeze the front brake lever nothing happens as soon as I release it the rear lights flash three times what do I do what could it be

Sorry new here, and hope I'm asking in the right place Have just brought a 2016 fxdb street bob, that has the running, indicator, brake lights all in one. Running, indicator all working fine but no brake lights at all, either with front or rear brake and bulbs look fine. I don't know a lot...

Can I get some help? I have a 2014 dyna FXDL. I have an aftermarket tail light and the break light and signal lights are solid and wont blink or transition between the tail light and break light. Thanks!