Author [NL] [FR] [ES] [DE] [SE] [IT] Again...Low Voltage warning  (Read 3462 times)

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  • Offline Wilko   gb

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    Offline Wilko

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    Again...Low Voltage warning
    on: Jun 13, 2018, 07.56 pm
    Jun 13, 2018, 07.56 pm
    Have I just replaced the battery for nothing, last night when I went to do the gear linkage, I started the bike to move it, when the ignition was on, the dreaded low voltage warning showed, I have it on a solar trickle charge, that is working fine.

    The new battery was fitted a couple of weeks ago, and has charged on the bike, I've done a couple of hundred miles since then, the charging system is also fine.
    Could it be just throwing up a stored fault warning, how can I check and delete them, I don't have the datatool cable. 
    Paul Wilko

  • Offline silverstripes   gb

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    Re: Again...Low Voltage warning
    Reply #1 on: Jun 13, 2018, 08.35 pm
    Jun 13, 2018, 08.35 pm
    Paul

    Search DTC codes. Coconut does a great explanation how to read the codes  :169:
    It wasn't me !!

  • Offline earthman   gb

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    Re: Again...Low Voltage warning
    Reply #2 on: Jun 13, 2018, 09.16 pm
    Jun 13, 2018, 09.16 pm
    The 'Low voltage warning' is such a common occurrence for many owners,......I'm convinced that it's a software problem rather than the actual battery.

  • Offline trophied   us

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    Re: Again...Low Voltage warning
    Reply #3 on: Jun 13, 2018, 09.59 pm
    Jun 13, 2018, 09.59 pm
    Mine shows the low voltage warning every time it's started for just a second.  I think it's the heavy load of the starter motor that makes the system think that the battery lacks a full charge.  It doesn't show up with the ignition "ON", only after the starter motor runs.  I quit worrying about it.
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  • Offline Coconut   gb

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    Offline Coconut

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    Re: Again...Low Voltage warning
    Reply #4 on: Jun 14, 2018, 06.54 am
    Jun 14, 2018, 06.54 am
    The "LOW VOLTAGE" Warning Message isn't a Stored Fault Message.

    It is not unusual for it to appear - as Trophied says,
    while actually cranking the engine over with the Starter Motor,
    when there is a heavy drain on the battery, and an inevitable Voltage drop.

    If the message appears with the Engine Running, then I would look again at the Charging system,
    and measure the voltage at the Battery - which should be around 13.2 Volts.

    There's allways the possibility too, that although it is virtually Brand New, the battery IS faulty,
    so get it properly tested while it is still under warranty  :028:

    Cheers  :821:




     
    Last Edit: Mar 12, 2020, 05.51 pm by Coconut

  • Offline Wilko   gb

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    Offline Wilko

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    Re: Again...Low Voltage warning
    Reply #5 on: Jun 14, 2018, 08.16 am
    Jun 14, 2018, 08.16 am
    Cheers boys. The warning is displayed when the ignition is turned on, not when the bike is started.
    I will get it checked out though.
    Paul Wilko

  • Offline redcap0006   ie

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    Offline redcap0006

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    Re: Again...Low Voltage warning
    Reply #6 on: Jun 14, 2018, 09.15 am
    Jun 14, 2018, 09.15 am
    *Originally Posted by earthman [+]
    The 'Low voltage warning' is such a common occurrence for many owners,......I'm convinced that it's a software problem rather than the actual battery.

    Accepting the fact that at some stage, probably sooner than later, as my TT is 5 years young, that I will have to replace the battery.  Getting the low voltage warning for all of my ownership period - 4 years.  Like others I no longer consider it a dud battery.

  • Offline ikkieman

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    Re: Again...Low Voltage warning
    Reply #7 on: Jun 14, 2018, 06.30 pm
    Jun 14, 2018, 06.30 pm
    I too have the low voltage while starting. On the BMW I previously had, the Xenon wouldn't start before I had the engine running out of safety. Perhaps it's as a precaution so the bike has power to crank the engine.
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