Hello all; I have a 2010 HD FXSTC (Softail Custom)

Turn signals quit working, I checked the fuse box, blown fuse, replaced fuse, worked fine; yay.
24hrs later: Same issue, replaced fuse, turn signals work again.

Question: How do I find a short in the turn signal circuit?
Where would you start? at the switches?

This is a stock bike, no additional doo dads or "look at me lighting" have been installed. It runs, rides, comes complete. I welcome any info that would help me solve this conundrum.
Live to Ride, Ride to say wheeeeeeeeeeeeee!!

 

I would start at the bulb housing and work my way back. Look for a broken/bare wire. A good place to also look is where the wires enter the tank tunnel, a possible pinch point area.

 

Thank you. I just hope I dont have to remove the tank, etc just to trace a short, because it's so maddening to find out that the fix is not adhering to the idea of "simple is better" ideology.

 

You talk funny,
the short will be evident by the black spots on the wires.
It's usually at the moving points like the neck or swingarm.

 

I do have a way with vocabulary gymnastics.
Anyroad, thank you for the input, I will check that area out.

 

The most common place to find damaged wires is underneath the rear fender.

Disconnect the electrical connector for that section of the wiring harness and see if it still blows the fuse.

 

Is there any moisture in the lenses. Possible corrosion in there. Check all the easy stuff first especially if you haven't disturbed much on the bike. Unfortunately still could be a wire that want run correctly and has finally got to the point where it is shorting out under the right conditions. Remember start with easy and obvious first. Don't over diagnose it.

 

Could be quite a few things causing it. Start off removing the seat and disconnecting the rear wiring harness connector and try the brakes. Fuse blow, no? Problem not back there then. Start inspecting the obvious next, light sockets, rear brake switch, wiring harness at the neck. You can lift the tank and pull it back by removing front and rear tank bolts and fuel disconnect line but it's very doubtful problem is under there. Should the wiring harness have chaffed it would be at the neck. Let us know what you find.

 

Thank you for all the helpful info. I have checked the turn signal wiring from the right front light assembly, where a previous repair had been done; all is good so far. If the fuse blows again, I will then check the wiring harness connector beneath the rear fender.
I Rode to work tonight, no problems. knees in the breeze.......

 

Ah HA! I found the problem with the wiring; Kudo's to all who have gone before me down that long, ardurous road of electrical madness. I found that the brake light switch under the frame has a leak, ergo, brake fluid on the wire connection, causing intermittant short, and blown fuse repetition. I have to have the rear brake pads changes out anyways, so, I will have both done at a local repair shop.
I'm still leaning, and still learning about owing a Harley.
Thanks to all, Cheers for Beers! :cheers!: