Dealing with the U1301 Harley Code on Your Bike

Seeing the u1301 harley code pop up on your odometer is enough to make any rider want to pull their hair out. You're out for a cruise, everything feels fine, and suddenly that little "Check Engine" light or the "Diag" message stares you down. If you've spent any time around Harley-Davidsons, you know that while the mechanical side of these bikes is usually rock solid, the electrical side can sometimes feel like it was designed by a caffeinated squirrel. ...

May 4, 2026 · 7 min · Niko Lheureux