Scrambler 1200: New Horn Fitted - But Won't Work Properly

Discussion in 'Technical Help' started by Mr Moofo, Dec 11, 2025.

  1. Mr Moofo

    Mr Moofo Well-Known Member

    Aug 16, 2019
    48
    63
    Brighton
    #1 Mr Moofo, Dec 11, 2025
    I have fitted a Denal Sound Bomb Mini to replace the rather quiet std offering. All was fine - tested it and it was great.
    Then it stopped sounding on pressing the horn button, or, even worse, stayed on constantly and only turned of when the ignition was turned off.
    The std item was working fine - and has now been put back on. But it now does the same thing
    Fuses are fine

    What could be the issue?
    Thanks
     
    • Useful Useful x 1
  2. joe mc donald

    joe mc donald Joe
    Subscriber

    Dec 26, 2014
    15,801
    1,000
    slough / burnham
    #2 joe mc donald, Dec 11, 2025
    @Mr Moofo only thing i can think of here is the horn button has got stuck in the on or pressed location. You may have to undo the switch and clean it all up or get some plus gas into it. Check one of the horn wires has not got damaged and the horn is fitted properly.
     
    • Like Like x 1
    • Agree Agree x 1
  3. littleade

    littleade The only sane one here
    Subscriber

    Mar 17, 2015
    388
    1,000
    Worcestershire
    #3 littleade, Dec 11, 2025
    Is the horn powered direct from the switch or does your Triumph do this via canbus?
    If it's the former then you may have damaged the switch (I suspect the current drain of the Denali will be higher than the OE horn because it's louder)

    If it's the latter then perhaps disconnect the battery for 15 minutes to see if it resets the canbus system. If that doesn't work it might need plugging into a diagnostic reader to see it there's any fault codes showing and go from there. I have a soundboard mini on my ditchpump, but it's as an additional horn, powered through a Hexezecan not a replacement using the OE wiring
     
    • Useful Useful x 2
    • Like Like x 1
  4. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
    678
    243
    Norfolk
    #4 TRIPLE X, Dec 11, 2025
    Agree it looks like it might have damaged the switch as it draws more current than the original horn. Are there any warnings in the installation instructions about relays for example?
     
    • Agree Agree x 1
  5. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
    678
    243
    Norfolk
    #5 TRIPLE X, Dec 11, 2025
    Last edited: Dec 11, 2025
    I would probably start by looking at the horn relay (if it has one) first to check if it is still functioning properly. It is possible that the contacts have fused together due to the higher current draw but the handlebar switch should be ok?
     
    • Agree Agree x 1
  6. littleade

    littleade The only sane one here
    Subscriber

    Mar 17, 2015
    388
    1,000
    Worcestershire
    #6 littleade, Dec 11, 2025
    The Denali website says it draws 5 amps

    The DENALI SoundBomb Mini is EASY to Install https://share.google/9k4OHi9uRtVzfeK7c

    There are installation instructions on their website, but they don't mention anything about checking the current drain

    Instructions_TT-SB.10200_rev02.pdf https://share.google/f3QTDMfx1V7cTcgnz
     
    • Useful Useful x 1
    • Agree Agree x 1
  7. joe mc donald

    joe mc donald Joe
    Subscriber

    Dec 26, 2014
    15,801
    1,000
    slough / burnham
    #7 joe mc donald, Dec 11, 2025
    The horn button is merely a make and break supply to the horn. If it is dirty or greasy it could affect the horn on and of.
     
  8. Mr Moofo

    Mr Moofo Well-Known Member

    Aug 16, 2019
    48
    63
    Brighton
    #8 Mr Moofo, Dec 11, 2025
    I have the solution.
    Having played around with things, I realised the whole left switch gear was playing up - so started to look at removal / cleaning/ refurb. Things got worse when I realised they were sealed units. That said, looking at a YouTube vid, I saw that the electical stuff leading in was push fit and secured by a zip tie ...
    I thought "What have I done recently to the left hand switch gear?" as stuff like this rarely just "happens"
    About 5 months ago I fitted some bar risers to the bike - and every thing was fine. I noticed occassionally that the aux driving lights I had would sometimes not switch on. I did what every good home mechanic does - decided it was once off and ignored it.
    When I fitted the risers, I rotated the bars a little - that has been just enough to "load" the connectors into the switch gear. Rotating the bars back and making sure that there is slack (ish) in the wires means that I have my full beam, indicators, ability to select modes, and my new super loud horn back !
    I do these things so you don't have to!
     
    • Funny Funny x 4
    • Like Like x 3
    • Agree Agree x 1
  9. littleade

    littleade The only sane one here
    Subscriber

    Mar 17, 2015
    388
    1,000
    Worcestershire
    #9 littleade, Dec 11, 2025
    Did you check that none of the insulation has worn through in the wiring harness, especially around the headstock as a result of your DIY bikermate skills?
     
    • Agree Agree x 2
  10. Mr Moofo

    Mr Moofo Well-Known Member

    Aug 16, 2019
    48
    63
    Brighton
    #10 Mr Moofo, Dec 11, 2025
    I did - and it all seems fine. Helped by the fact that the bike hasn't been ridden that many miles since my DIY fiddling
     
    • Like Like x 2
    • Agree Agree x 1
  11. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,303
    1,000
    Uk
    #11 crispey, Dec 12, 2025
    85% of faults on a motorcycle are caused by something simple!! That's usually the spanner holder!! :laughing:
     
    • Agree Agree x 2
    • Like Like x 1
    • Funny Funny x 1
  12. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,303
    1,000
    Uk
    #12 crispey, Dec 12, 2025
    85% of faults on a motorcycle are caused by something simple!!



    That's usually the spanner holder!! :laughing:
     
    • Agree Agree x 1
  13. littleade

    littleade The only sane one here
    Subscriber

    Mar 17, 2015
    388
    1,000
    Worcestershire
    #13 littleade, Dec 14, 2025
    85% of Internet problems are usually caused by the keyboard operator ;)
     
    • Thanks Thanks x 1
Loading...
Similar Threads - Scrambler 1200 Horn
  1. Coldwire

    Can Anyone Help With Engine Casing Pc Paint Codes For 2023 Triumph Scrambler 1200xc

    Coldwire, Oct 31, 2025, in forum: Technical Help
    Replies:
    1
    Views:
    162
    bigbear
    Dec 26, 2025
  2. Powders

    Scrambler 1200xc Rear Light

    Powders, Jul 28, 2025, in forum: Technical Help
    Replies:
    0
    Views:
    340
    Powders
    Jul 28, 2025
  3. JoshHZR

    Intermittent Throttle/imu Fault On Scrambler 1200 Xe

    JoshHZR, May 1, 2025, in forum: Technical Help
    Replies:
    1
    Views:
    414
    JoshHZR
    May 5, 2025
  4. davidw

    Scrambler 1200 Under Seat Tray - Connectors

    davidw, Apr 30, 2025, in forum: Technical Help
    Replies:
    1
    Views:
    724
    blacktiger
    May 5, 2025
  5. Bernard24

    Scrambler 1200 Xe - No Gears

    Bernard24, Apr 15, 2025, in forum: Technical Help
    Replies:
    0
    Views:
    586
    Bernard24
    Apr 15, 2025

Share This Page

Sign up