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Thread: heated grips and seat stopped working - good battery and voltage

  1. #16
    Left Coast Rider
    Join Date
    Nov 2011
    Location
    Vancouver, British Columbia, Canada
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    3,371
    For what its worth, I've had a Shorai LiFePo battery in my used-once-a-week big twin sport bike since 2015 and its performance has been excellent. I plug my Battery Tender Jr. into it about once a month just for the heck of it and the charge indicator always shows "green".

    YMMV.

    Sorry for the thread derail.
    Last edited by BC1100S; 12-09-2019 at 07:35 PM.

  2. #17
    Registered User
    Join Date
    May 2015
    Location
    Oregon
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    11

    Thumbs up UPDATE! The "Windows 98" fix

    After getting my GS911 wifi scanner hooked up, I was able to turn on the heated grips and seat via the ZFE module test function. The GS911 also showed the switches in the hand grip are working (at least sending a signal to the ZFE and dash indicators). it still didn't make sense because I knew the signal was getting to the module, it just wasn't turning them all on. I unplugged all the heated elements and tested one at a time, but still no go.

    So, what do you do with a 10 year old PC? unplug it and let it sit for a while before rebooting. In this case I disconnected the battery for 2 minutes, then tried it again. No go. Disconnected it again, left it for an hour, retest and WHAM! it all works now!

    I may have a short in one of the heating wires, but I won't know until I start riding again (Pacific NW here and currently soggy and icy). If it does it again, I suspect it's the seat heating element as I had a custom seat built using the old pan and heating element in June 2019.

    Thank to all who chimed in, great forum!

    PS: Big thanks to those dudes who invented the GS911 wifi. The best BMW tool in my box!

  3. #18
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Jan 2010
    Location
    Mansfield,MA
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    14,515
    Quote Originally Posted by brian_pnw View Post
    After getting my GS911 wifi scanner hooked up, I was able to turn on the heated grips and seat via the ZFE module test function. The GS911 also showed the switches in the hand grip are working (at least sending a signal to the ZFE and dash indicators). it still didn't make sense because I knew the signal was getting to the module, it just wasn't turning them all on. I unplugged all the heated elements and tested one at a time, but still no go.

    So, what do you do with a 10 year old PC? unplug it and let it sit for a while before rebooting. In this case I disconnected the battery for 2 minutes, then tried it again. No go. Disconnected it again, left it for an hour, retest and WHAM! it all works now!

    I may have a short in one of the heating wires, but I won't know until I start riding again (Pacific NW here and currently soggy and icy). If it does it again, I suspect it's the seat heating element as I had a custom seat built using the old pan and heating element in June 2019.

    Thank to all who chimed in, great forum!

    PS: Big thanks to those dudes who invented the GS911 wifi. The best BMW tool in my box!
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