My red Electrical System Lamp came on and stayed on today during today's ride. A check of my Power Vision shows no DTC's. The service manual says, "For diagnostic information see the electrical diagnostic manual." I don't have this manual... Any suggestions on where to start beyond purchasing this manual? Bike (2014 FXDL) seems to be running fine.

 

Check all your lights; turn-signals, headlight high and low, brake light.

 

Mine has came on for 3 different reasons on my 2014 FXDL. First was when running the highbeam on a LED headlight, apparently the computer since the LED draws less power the computer thought it was out. I have a different LED headlight now that doesn't cause this. Second time was for a burned out brake light bulb, and again when my brake light was staying on. LED brake light assembly and rebuilding my master cylinder to fix the sticking plunger for the brake light took care of this one. Last time was recently when my ignition bracket broke and left my ignition dangling. I was still a little ways from home and noticed anytime the ignition was hanging by the wire the light would come on, pick it up and it would go off. Long story short, start with checking all of you lights, if you upgraded to LED anything recently that could be the issue.

 

Forget the PV codes, look up yours using the factory system on the speedo.

 

Short ride today. No red light. All lights seem to be working and even ran with high beam on to check that out. Could not replicate two variables that were present when red light came on yesterday. It was hotter yesterday, in traffic head temps were reaching 300F, and my oil cooler fan was running. I'm wondering if the heat, oil cooling fan, and running the high beam all came together to overtax the charging system?

 

For the benefit of anyone who ends a search at this thread:

It turns out to be a sticking brake light...