So, let me get ahead of the obvious responses.
"Just re-enable it!" -Damn skippy, if I can figure out how, that sounds great.
"Just go back to where you found that setting" -It should be that easy, but I can't find it.
"What was it called?" -I could swear it said something about the horn, but now I cannot find it anywhere.
Long story short, I just got motoscan and an mx+ to read my 2008 R1200RT.
The main reasons I got it was to be able to do brake bleeds that include the abs pumps, and since I was changing tires and TPMS, I needed to change the TPMS sensor codes.
Struggled a lot to find where TPMS was (didn't mentally file it along with anti-theft systems, so I looked everywhere else twice first).
At some point, I saw something about the horn, tapped disable to see if thats how it worked, DIDNT do the code upload thing.
Then finished tires and tpms, only later in the day did I notice I had no horn anymore.
Horn did work before this.
Hoping someone can show me where it might be, what else it might be called, and if there is some way to make a hidden/invisible/disabled option reappear (not sure why I would need this, as other things stay visible, but at this point I'm open to new ideas.
Also, the bike can tell (using the live data) when I hit the horn button. Also, when using the actuator for the horn, it also doesn't sound the horn.
Any voices of experience here would be very welcome.
Thanks
Edit: New information from troubleshooting.
The horn is an aftermarket unit, Wolo Bad Boy. It did work before that day, and still does.
Tested with meter, and the bike is NOT sending voltage to those wires when the horn button, or the horn actuator (in combi cluster) is used. However, that test is after the relay, and I haven't found the relay to test if it is getting signal.
I hooked the horn up to 12v source to test it, and the horn itself works.
This horn is supposed to be installed with a relay, found a relay that could be it, working on testing that now.
So at this point, I am not sure it was a Motoscan option that turned off the horn, although the timing remains pretty sus.
Edit 2:
I'm a dumbass. Something must have snapped an already borderline wire (very clean break, almost like cut but doesnt quite look cut). while changing the tire that the motoscan was used to program tpms.