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Thread: Can't set time or date

  1. #1
    Join Date
    Nov 2018
    Location
    Sweden
    Posts
    60
    My Cars
    1994 840ci

    Can't set time or date

    Got a weird problem after the winter. I can't set the time or date on the obc. No response on the buttons.The buttons work (1-1000) if I use other functions. Everything thing else on the obc works. Tried to disconnect the obc but the time and date didn't reset. Is that stored in an other module?

  2. #2
    Join Date
    Aug 2011
    Location
    Germany
    Posts
    107
    My Cars
    05/1993 BMW 850CSi
    I just tested it. The date and time are stored in the EKM module, not in the MID (OBC). Note that the date and time can only be set when the ignition is switched on. This does not work in the "Radio" key position.

  3. #3
    Join Date
    Nov 2018
    Location
    Sweden
    Posts
    60
    My Cars
    1994 840ci
    I have tested it in all key positions , but no luck. Ok so it's stored in the ekm. Will try and disconnect the battery for a while and see if something changes. A quick fix would be if I reconnect at 0:00 😁
    To bad it's such a pain to get to the battery.....

  4. #4
    Join Date
    Aug 2011
    Location
    Germany
    Posts
    107
    My Cars
    05/1993 BMW 850CSi
    I just took a look at the schematic. It might be enough to remove the two fuses F17 and F18 for a short time.

  5. #5
    Join Date
    Nov 2018
    Location
    Sweden
    Posts
    60
    My Cars
    1994 840ci
    Thanks. I will try that first.

  6. #6
    Join Date
    Nov 2018
    Location
    Sweden
    Posts
    60
    My Cars
    1994 840ci
    Removing the fuses didn't do anything. But was able to remove the battery connector without tearing up the whole trunk. Now everything works again 👍

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