Battery replaced on 2017 Multistrada 1200 S and Now Ignition is Always On?? Did I hotwire this inadvertently?

Ducati Forum

Help Support Ducati Forum:

Joined
Feb 23, 2025
Messages
1
Location
USA
So I replaced the battery, and what a job that was with the battery shoe-horned in. When I finally got the new one installed and connected, the dash lights lit up. Bike started easily too. Horn doesn't work. But the real problem is that the bike doesn't turn off. I had to disconnect the battery to shut the bike off. Any ideas? Grazie!
 
So I replaced the battery, and what a job that was with the battery shoe-horned in. When I finally got the new one installed and connected, the dash lights lit up. Bike started easily too. Horn doesn't work. But the real problem is that the bike doesn't turn off. I had to disconnect the battery to shut the bike off. Any ideas? Grazie!
Whenever you have some weird electrical problem, and especially after any electrical work, CHECK THE FUSES!
Then check the fuses again.
After that, look for any wires, relays, or ground connections that weren’t put back correctly. Weird stuff happens when ground wires aren’t tightened properly, or something gets pinched under the connector.
The engine starting and not shutting off is definitely in the bad ground category. Disconnecting the battery while the engine is running is a good way to blow diodes in the alternator.
Speaking of the alternator, with everything reconnected, key off. Are the dash and alternator lights off?
With the key on and the engine not running, does the alternator light come on? If not, you’ve damaged the alternator. Time for a real mechanic.
One last thing, CHECK THE FUSES.
And post your results so it helps the next guy.
 
So I replaced the battery, and what a job that was with the battery shoe-horned in. When I finally got the new one installed and connected, the dash lights lit up. Bike started easily too. Horn doesn't work. But the real problem is that the bike doesn't turn off. I had to disconnect the battery to shut the bike off. Any ideas? Grazie!
The motor cannot continue to run with the key turned off unless there is still a hot running to the ignition. Take the battery out and start again. Ground connected to the hot side? Until you have stopped the dash lights from coming on as the battery is connected with the key off don't start the motor. The alternator is probably ok. But you keep doing this the rectifier is going to check out if it hasn't already.
 
Multis can have issues with the keyless ignition. That's what this sounds like, try manually turning it on and off using the button under the front tank cover. Check the batteries in your keyfob, and if no joy then have a careful inspection of the wiring, relays, etc when you remove the earth lead to the battery and reset the system. Pretty sure you can also pull a fuse for the handsfree circuit which will eliminate that as you troubleshoot.
 

Register CTA

Register on Ducati Forum! This sidebar will go away, and you will see fewer ads.
Back
Top