2012 Street Glide Voltage Fluctuation
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2nd Gear
Joined: Feb 2015
Posts: 6
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From: Santa Rosa, CA
2012 Street Glide Voltage Fluctuation
The voltage reading on my 2012 street glide are all wonky while running. It starts up fine but fluctuates from 10v-16v while riding. Is this a battery issue or something else in charging system? I heard this model year had a recall on the voltage rectifiers.
Thanks for the help! -Matt
Thanks for the help! -Matt
Outstanding HDF Member
Joined: May 2015
Posts: 2,172
Likes: 377
From: Georgia
Could be sooo many things.
If you do your own work there are instructions on troubleshooting in the FSM, on this site, on YouTube and the internet in general. Get a good volt meter and dig in.
Or take it to a shop....
If you do your own work there are instructions on troubleshooting in the FSM, on this site, on YouTube and the internet in general. Get a good volt meter and dig in.
Or take it to a shop....
Last edited by ORradtech; Dec 10, 2017 at 06:49 PM.
Extreme HDF Member
Joined: Aug 2007
Posts: 17,625
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From: Blairsville GA
Sounds like your voltage regulator is on the way out. If that's what it is, they're easy to replace and not too expensive.
Last edited by DaddyKnuck; Dec 10, 2017 at 09:15 PM. Reason: typo
Club Member
Joined: Jun 2007
Posts: 45,429
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From: Bedford UK
We have a couple of Stickies in the Tech Electrical section, which will help diagnose any charging problems. Also be aware that the stock voltmeter isn't very accurate and you should check what is going on with a multimeter. Be silly to replace the regulator if there is a dodgy connection to your bike's voltmeter!
So check your voltmeter first, then the charging circuit using the Stickies.
So check your voltmeter first, then the charging circuit using the Stickies.
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Although it could be you voltage regulator my 2011 SG does this all the time.
Had it checked at the shop and they found nothing wrong.
Also checked myself with a volt meter and everything read fine.
Mechanic told me these gauges are very cheap and are prone to malfunction.
Mine will jump around at first then peg at 16 for the remainder of the ride.
Had it checked at the shop and they found nothing wrong.
Also checked myself with a volt meter and everything read fine.
Mechanic told me these gauges are very cheap and are prone to malfunction.
Mine will jump around at first then peg at 16 for the remainder of the ride.
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From: Good roads, cold beer
The voltage reading on my 2012 street glide are all wonky while running. It starts up fine but fluctuates from 10v-16v while riding. Is this a battery issue or something else in charging system? I heard this model year had a recall on the voltage rectifiers.
Thanks for the help! -Matt
Thanks for the help! -Matt
if you did need to replace yourself, the part isn't that expensive. Under $100
