I just purchased a 2007 Electra Glide. Turn signals were not working. I replaced a blown 15a fuse and that fixed signals on right side and left rear. Found blown bulb on left front and replaced. Now, when pushing horn the same 15a fuse blows. After 5 attempts i pulled horn, could short be in horn even if it test good on pickup? Also have dim light on left side with new bulbs. Left rear flickers and goes out when brakes are engaged. Thanks for any advice. RC

 

What?

 

The horn seems to be causing some of the signal issues. Sometimes it works and does not blow fuse but sometimes it does not honk but blows the fuse when pushing the button. wondering if there is a short in the horn or wiring to the horn. It honks every time when tested on my truck so i assumed it was ok, put it back on the bike and started blowing fuses again! I'm confused at this point!! Thanks

 

It's probably not the horn but the positive wire going to it. Unplug the horn and see if you have continuity to ground on both wires.

 

Unplug the horn, tape the wire and push the button. See if the fuse blows.

 

I'll do that! Another part of this i failed to mention is the left turn indicator is staying lit up. Whatever is causing this, probably a short in wire, is only affecting the lights on left side of the bike.

 

I'd say to start tracing your grounds.

 

A short means that the current has found a path back to ground, before it has reached the component...

If there were a short in the wire that powers a light, the light will not illuminate.

 

I'm wondering if the left grip or controls have been replaced. If so, I'd suspect the problem's in there.
Depends on the quality of the short, and the resistance to ground, doesn't it?

Dim bulbs lead me to believe that not all the current intended for them is getting to them, some is shorted to ground with a poor connection that isn't always enough to blow the fuse.

 

The horn and the signals are both powered by the same fuse (accessory).

Chase down one issue at a time, first find the short.

Somewhere between the horn switch and the horn there is probably a bare wire rubbing against something that is ground.

Let`s narrow it down...

Unplug the connector that connects the main harness to the interconnect harness, connector 2A/2B.

Does the fuse blow now when the horn button is pressed? Make sure you move the wires around.

If the fuse does not blow, it means the short is in the main harness.

If the fuse still blows, it means the short is not in the main harness, you will need to go farther upstream in the circuit.