2012 HD EG Ultra, coming home tonite, the yellow check engine light and red battery lamp indicator came on. I noticed the volt meter gauge was reading about 12 volts, when it normally shows about 15 volts. At some point, both lights went off and the volt meter gauge jumped up to 15 volts, where it normally runs.

Any thoughts? Charging system or battery?

Thanks, Mark

 

Check/clean battery connections

 

Did you buy new? Did you have voltage regulator problem with the 2012's taken care of?

 

M1325 bulletin

 

FUNNY you posted about this.... mine did it 2x over the last 4 days.... wasn't anything bad... my lights came on, i looked down volts were about 12, lights went off and everything was normal.... that was on the way to TX from LA.

did it once on the way back after about 3 hours on the road... same thing. just a blink of the lights and back to normal!

just pulled up a couple more goggle topics about it. thanks DAWG for the link! service department heeeeeeerrreeeee i come lol!

 

Always check your battery first. Found most electrical issues are battery related. Clean, inspect and tighten connection.

 

true... in my case i did install the Vied's a couple weeks back. i'll give that a check in the morning!

 

This happened to me in June. It was the voltage regulator, even though it was outside of those affected by the recall bulletin.