Having intermittent voltage spikes causing this code (battery voltage high) to flash often enough that occurs anytime I ride after clearing the code. Have checked all connections to the battery, etc and all are clean and tight. Voltage at battery holds steady at 14.6 from idle through 3-4000 rpm. Starting voltage drops to between 10.2 and 10.5. At a loss as to what to do next. Is there some test I can do on the voltage regulator?
Bike is an 07 Ultra with 110 and T-Max ignition with true duals and Ful-sacs.

 

Must be something nobody has experienced. Will continue to experiment.

 

Rechecked all connections and used dielectric on all. Went for short ride and both check engine and battery lights came on and stayed on. Error code of P0563 came up again.
Battery read 12.5 before starting, dropped to about 10.3 while starting and 14.6 steady from idle through 3000 rpm.
Are there any suggestions?

 

Do you have the Electrical Diagnostic Manual for your bike?....There should be a complete troubleshooting flow chart for that problem.....I would look it up for you but I can't get to mine right now.
I'll check back later on today once I can get to my manual.
Meanwhile, you might want to check your grounds where they go to the frame.....and also make sure your voltage regulator ground is attached.

 

i would consider seeing a voltage drop while the starter is actually working to be normal..

i would agree with doc above.. follow the flow chart diagnostics for that particular code.

 

I do not have the electrical diagnostics manual, guess I better get one.
I have checked all cables, connections etc. Cleaned, dielectric tightened etc.
My 02 had a pigtail from the VR to ground while the 07 has only the plug in from stator and the plug in to battery/bike. No apparent ground other than mounting bolts to frame. Internal?

 

If you do any of your own work, I would highly recommend it. The E D manual is as big as the service manual and contains a wealth of valuable information that you're not going to find anywhere else.