Strange eletrical issue

[rohny brimstone]

Hi I have a 2005 1800 w 122k miles.while out riding last weekend my horn started beeping on every crack in the road.pulled fuse till I got home.now no horn or turn signals.swapped out relays.cleaned switchs w contact cleaner.any ideas where to start?

[WingAdmin]

Hi I have a 2005 1800 w 122k miles.while out riding last weekend my horn started beeping on every crack in the road.pulled fuse till I got home.now no horn or turn signals.swapped out relays.cleaned switchs w contact cleaner.any ideas where to start?

Check relay 17, the horn call relay. This is the relay that the trunk lock/unlock system uses to beep the horn. Pull it out and see if the problem goes away. If so, then replace it.

[GoldWingrGreg]

Check for pinched wires going under the left handle bar on the left side or where the switch harness is clamped to the fork bridge. Sometimes the harness gets pinched where the "under-bar cover" screws to the handle bar.

[rohny brimstone]

I swapped out the horn call relay made no difference. Ill pull apart the harness for left handle bar some time Thursday have work next couple days

[Techdude2000]

Check the trunk hinge harness on the right side. If the right wires are broken, you could get a short that will simulate the horn blowing with the Call button on the fob.

[rohny brimstone]

I found broken wires on right side of trunk hinge area.fixed wires.still no turn signals or horn.checked switches all good.swapped relays no change.any other ideas??

[Techdude2000]

Did you reinsert the Horn/Turn fuse into the correct slot, is it blown? You swapped the Horn Call relay, but did you swap the Horn/Turn relay

[rohny brimstone]

Yes all fuses good(easiest things first)replaced all relays.guess next may be see if power going to relays???

[Techdude2000]

Yes all fuses good(easiest things first)replaced all relays.guess next may be see if power going to relays???

Ok, do the hazards work? Do the brake lights work?

[rohny brimstone]

4ways and brake lights do work

[Techdude2000]

4ways and brake lights do work

Ok, that means you have power through the Horn/Turn relay. The Horn circuit doesn’t have anything else in it that would kill the Horn function other than the button switch, wiring, and the connectors under the right fairing pocket in the white frame. This area also has connections for the turn signal switch, so this is where I would look next for corrosion and/or a bad connection.

[rohny brimstone]

Found problem where techdude2000 said look the connector under right hand pocket where switch wiring from left-hand bars connects had a badly corroded Pin.thinking a ground.working good now.gotta hate electrical trouble shooting.just takes time.thanks to all who helped me you all rock!!!

[Techdude2000]

Found problem where techdude2000 said look the connector under right hand pocket where switch wiring from left-hand bars connects had a badly corroded Pin.thinking a ground.working good now.gotta hate electrical trouble shooting.just takes time.thanks to all who helped me you all rock!!!

Great! Glad you got it straightened it out.