Parasitic drain
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,434
Likes: 3,715
From: backwoods
On second thought, I believe they likely do have a separate battery, in case a thief thinks disconnecting the battery will kill the alarm. So, maybe removing the Maxi fuse won't disable it? He may have to contact the dealer to see how to remove it, if possible. You wouldn't need much of a backup battery to sound a simple alarm.
John
John
Wiring diagram would probably help too.
My2015, all you need to do is pull the maxi fuse and lights stop flashing. But it really isn;t much of secruity system, just need the fob to start.
Road Warrior
Joined: Jul 2007
Posts: 1,898
Likes: 67
From: Saint Amant, Acadiana
Siren is optional, OP may not have it. But yes, if the siren is present then it will make noise, it has a Li battery built in. Unplugging and removing the siren is possible, it is not an integral part of security system.
Seasoned HDF Member
Joined: Sep 2017
Posts: 12,254
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From: England
The security needs to be deactivated by turning on the ignition with the fob present. hen pull the maxi fuse.
The little battery in the siren module is just for that. If the maxi fuse is pulled and the security system is active the siren will sound.
The battery in the siren module is a 9 volt nickel metal hydride type, NiMh, on my 2017 Sportster.
The little battery in the siren module is just for that. If the maxi fuse is pulled and the security system is active the siren will sound.
The battery in the siren module is a 9 volt nickel metal hydride type, NiMh, on my 2017 Sportster.
Last edited by Andy from Sandy; Sep 11, 2024 at 03:00 AM.
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