In an earlier post I wrote that my check engine light had come on, was given feedback to check codes because it was likely a bad voltage regulator which the 2012 touring bikes were known for. Checked the codes, got P0563 and b1006/b1007. I called my dealer, he said the P0563 could be a bad voltage regulator, but he wasn't familiar with the b1006/b1007. Anyway I ordered a voltage regulator (go figure the chrome one from HD was $25 cheaper than the regular one). I am waiting for it to come in.

I put the battery tender on, got a flashing yellow which indicates battery not charging. I took out the battery, it is less than a year old, and had it tested. It came back as good. I was worried the voltage regulator overcharging may have screwed up the battery.

I put the batter back in, and with the original voltage regulator still in I ran the bike and put a volt meter at the battery. At RPM the highest it would go was 14.45, which to me is within normal range isn't it? Could it be that if the voltage regulator is bad it is overcharging intermittently, perhaps just when the bike is hot? I also checked around the battery area in the bike and saw no bad cables, chaffing, etc. Battery connections were also tight.

 

max should be 14.8 DC.

if you see higher than that or can measure AC voltage at the battery- you have a bad VR

the lights on the tender can send you down a path of confusion.

even the trouble codes can be influenced pr a response to a bad connection


all the checks are done with a voltmeter and outlined on the tech board, electrical.

battery, VR or stator any bad one can take out the other 2



mike

 

the bad voltage regulators were intermittent before they died - yours sounds like it's still got a few charges left in it

 

Ok thanks. So if battery is good how can I tell if it's the stator or the VR? I'm thinking VR because it is a known issue for the 2012's but just want to be sure.

 

THe regulator crapped out on mine about a month or so ago. Started out as a check engine light, battery light, and volt gauge reading low. It did a few times over a weekend, so I ordered a replacement from amazon. It's been fine since.

 

By performing basic charging system checks listed in the electrical diagnostics manual!

 

My 2012 RGU had intermittent charging issues same as yours. New regulator was the needed fix.

 

what we are trying to help you with is to check and diagnose the problem ad not make it worse.

there are all kinds of guys who just swap parts- that gets expensive if the fault/ cause is elsewhere

for the VR it can be as simple as renewing the ground connection by loosening and retightening the mounting bolts.

but by doing the checks you will know -and you will spend money only where it needs to be spent.

Mike

 

Unless DTC codes have changed since 2008 here's what my list shows:

B1006 - Accessory Line Overvoltage Instruments
B1007 - Ignition Line Overvoltage Instruments
P0563 - Battery Voltage High

To me this is all an indication of a failing VR.

Having the HD service manuals both mechanical and electrical can be $$ saving!

In the meantime...this site will have LOADS of good tutorials on basic electrical troubleshooting in their TECHNICAL link: http://www.cycleelectricinc.com/

No harm in checking the output of the stator prior to installing the new VR.

 

if you open up the primary it'll be very apparent if the stator went bad - it'll smell like burnt electronics. but that's a messy job, voltage checks would do the same