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Thread: Electrical Gremlins

  1. #1
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    Electrical Gremlins

    Lamp F warning on but the lights are working fine, no blown bulb and indicators are randomly switching themselves on but flash at twice the rate, any ideas whats going on here? 2010 GSA TC.

  2. #2
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    Faulty bulb holders or faulty bulbs with loose filaments will cause the canbus to indicate faults. If you have LED indicator bulbs, check the ballast resistors are connected properly.
    08 R1200GSA
    76 Suzuki GT750

  3. #3
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    The tail lamp units used to corrode inside and give a bad earth and they "leaked" volts through other circuits

    I'd say check the bulb holders for corrosion and also is the front side lamp working (they are so fecking small they are easily missed!)

    Edit Just remembered do you have HID lamps fitted?? There was something about dodgy ballasts affecting electronics if I recall correctly
    Oh Great and Wise Deity, Grant me the serenity to accept the things I cannot change,

    Courage to change the things I can! And the wisdom to know the difference!

  4. #4
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    I had a persistent connection fault on my HID. One connector would shake loose causing a LampF error but I never found which one. Disconnecting to check "fixed" the fault.
    08 R1200GSA
    76 Suzuki GT750

  5. #5
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    Electrics are all standard, nothing has been added or taken away so no HIDs etc.

  6. #6
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    Check your rear tail lamp -
    l
    Its a double fillament one blows and the lectrickery does its magic - reduces the power to the other fillament by 50% (lights) When you brake it applys 100% power and it goes bright (brakes)

    Caught me out the first time

  7. #7
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    I had something like this on the small side light bulb in the headlight. It failed and gave me the error, then it fused the loose part of the filament back to itself and continued to operate on and off for a while. The dealers explained what had happened and replaced it, pretty cheap fix

  8. #8
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    Quote Originally Posted by Santa-2512 View Post
    Check your rear tail lamp -
    l
    Its a double fillament one blows and the lectrickery does its magic - reduces the power to the other fillament by 50% (lights) When you brake it applys 100% power and it goes bright (brakes)

    Caught me out the first time
    "Should" show LampR for a tail lamp fault
    Oh Great and Wise Deity, Grant me the serenity to accept the things I cannot change,

    Courage to change the things I can! And the wisdom to know the difference!

  9. #9
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    When I stripped my bike's back end to have the frame powder coated, the tail light brackets were a right old mess of rust. I caught it in time but only just.
    08 R1200GSA
    76 Suzuki GT750

  10. #10
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    Quote Originally Posted by DrFarkoff View Post
    "Should" show LampR for a tail lamp fault
    Indeed it should but it didnt! lol

    it showed lampF so i came out stupidly early one morning and changed both headlamp bulbs ..

    It still showed lampF

    When i got home i read up, and it said about the reason for no fuses etc.

    Checked the rear, and one filament blown

    Changed it and LAMPF no longer displayed

    For me, it shows LAMPF no matter which end has a duff bulb

  11. #11
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    The error message tells you a bulb is faulty. That’s all.
    08 R1200GSA
    76 Suzuki GT750

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    2010 has a led rear lamp ?

  13. #13
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    Quote Originally Posted by Santa-2512 View Post
    For me, it shows LAMPF no matter which end has a duff bulb
    I must stick a duff bulb in mine just to see

    I recall something telling you front or rear when my tail lamp failed (probably due to the water getting in after the lens fell off!! Screws were still there with bits of red plastic)
    Oh Great and Wise Deity, Grant me the serenity to accept the things I cannot change,

    Courage to change the things I can! And the wisdom to know the difference!

  14. #14
    My 2010 TC does indeed come with an led tail light, why have you one with bulbs?

  15. #15
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    If the bike was built for an LED light, the bulb will cause a LampF error. The ECU has to be updated.
    08 R1200GSA
    76 Suzuki GT750

  16. #16
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    I'm away from home at the moment so not had a chance to get in about the bike yet, will up date as and when I get it sorted. Believe my rear light is LED by the way as are the indicators. Will start with a new front bulb the current one works fine but was a cheap Lidl one, so may help with a new quality item, but will also look at the security of the fitting.

    Thanks to all for the advice and response so far.

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