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Thread: Electrical Issues

  1. #1
    Join Date
    Sep 2016
    Location
    USA
    Posts
    3
    My Cars
    2011 328i

    Electrical Issues after battery swap

    Having a lovely past few days since replacing my battery to my 2011 328i. So after swapping out a new battery, I got a bunch of warning lights on the dash that werenÂ’t there last time I replaced the battery.
    Also, I have no blinkers, no lights inside or out, and windows donÂ’t work.
    Took it to get serviced and got the battery registered.
    Then CBS numbers were reset, tried a new sensor for rear break pads and tried to bypass with jumper wire but the yellow brake light still shows up. Fuses were fine after being checked and there is no communication with the footwell module.

    https://ibb.co/mL4frK
    https://ibb.co/idqLrK
    Dashboard warnings in links above.

    Let me know your thoughts!
    Last edited by Mlpalms; 07-31-2018 at 05:46 PM.

  2. #2
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    Is the new battery fully charged? Did you register it with the car’s charging system?

  3. #3
    Join Date
    Sep 2016
    Location
    USA
    Posts
    3
    My Cars
    2011 328i
    Yes it's a brand new battery. And I went to the shop and got it registered and the mechanic confirmed. I think the FRM Module may have got shorted out or messed up when the battery was replaced but I'm not sure.

  4. #4
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    A brand new battery isn’t necessarily fully charged. It may have sat on a shelf for months.

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