My check engine and battery warning lights would randomly come on, most notably when the engine was up to normal temperature, logging code P0562 in the ECM (low voltage detected). I'm definitely not a professional in Harley repair, but thought it would be fun to record and share my experience with this particular issue.

The below links helped me immensely in troubleshooting this particular issue.


John Maxwell's video "Harley Davidson Charging System Check"
   • Harley Davidson Charging System Check  

DG Custom Cycle has a very detailed article on diagnostic codes
https://dgcustomcycle.com/tech/harley...

This thread on Harley-Davidson Forums contains good info (from Dave63)
https://www.harley-davidsonforums.com...