Speed Twin 1200 Indicator Issues

Discussion in 'Technical Help' started by Tosgha, Sep 20, 2025.

  1. Tosgha

    Tosgha Noble Member

    Jul 31, 2018
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    #1 Tosgha, Sep 20, 2025
    Last couple of days have found that the indicators don't always work as I am riding along. Everything works when I start off but after a mile or two if I press the indicator button to the right either nothing happens or the indicator light on the clock flashes once then nothing. I have sprayed inside the control box with GT85 and wiggled the button. Tried tugging on the wires from the indicators to detect a intermittent circuit but to no avail. Any ideas anyone, a new switch box is over £200 and I don't want to buy one if that is not the cause.
     
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  2. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
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    #2 TRIPLE X, Sep 20, 2025
    Does the left indicator work OK?
     
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  3. Tosgha

    Tosgha Noble Member

    Jul 31, 2018
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    #3 Tosgha, Sep 20, 2025
    not sure if the problem starts with the left as it does with the right but either way once it refuses to work neither left or right works until it decides to.
     
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  4. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
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    #4 TRIPLE X, Sep 20, 2025
    If both indicators are dodgy it might be worth checking the relay which should be located under the seat or side panels? There will be a number of relays and you need to try and identify which one is for the indicators. I take it the indicators are original and led?
     
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  5. Tosgha

    Tosgha Noble Member

    Jul 31, 2018
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    #5 Tosgha, Sep 21, 2025
     
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  6. Tosgha

    Tosgha Noble Member

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    #6 Tosgha, Sep 21, 2025
    yes they are the originals, I looked at the Haynes manual and it doesn't seem to list the indicators as on a relay that I can see but I will check tomorrow thanks.
     
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  7. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
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    #7 TRIPLE X, Sep 21, 2025
    If there is no relay it seems that the indicators will be controlled by the ECU with a flasher unit built into the instrument panel? Have you tried altering the indicator settings in the bikes menu? Are the indicators set to self cancelling?
     
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  8. Tosgha

    Tosgha Noble Member

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    #8 Tosgha, Sep 22, 2025
    I didn't know there was a menu, other than for cancelling traction control and such.
     
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  9. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
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    #9 TRIPLE X, Sep 22, 2025
    Have a look in your Owners Manual. Download for free if you don't have one.
    triumphtechnicalinformation.com
     
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  10. Tosgha

    Tosgha Noble Member

    Jul 31, 2018
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    #10 Tosgha, Oct 31, 2025
    Indicators have permanently given up the ghost, along with the clock, trips, heated grips and hazard switch. Having spoken to some people in the know it would seem a fault in the clocks are the issue which are about a grand to replace.I will get a triumph dealer to diagnose the problem and see what the next step to take is.
    Regarding my Triumph 400 that dropped the cam chain, still waiting for the cylinder head from India.
     
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  11. alfie

    alfie Getting older but still going for it
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    #11 alfie, Oct 31, 2025
    I would check the wiring on the left hand side of the headstock.
    Your symptoms are very similar to the problems I had on my Street Twin. Open circuit supply to the speedometer.
     
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  12. Kinjane

    Kinjane Well-Known Member

    Oct 15, 2017
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    #12 Kinjane, Oct 31, 2025
    From memory the speedometer has interaction with the indicators. Check the multi pin connector to the Speedo unit.
    Also the stock wiring around the headstock is usually tight and ‘creaky’. It’s easy enough to gain additional slack around the headstock by moving the loom holder under the tank held in position by two bolts forward, after first elongating the vertical positioning hole horizontally with a hot soldering iron. However this is prevention rather than cure.Once the loom holder has been repositioned it’s possible to fit a matchstick between the headstock and loom, whereas beforehand anything the thickness of a Rizla paper wouldn’t slide between them
     
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