Central lock module buzzing

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  • redhatpat
    Mod Crazy
    • Aug 2005
    • 656

    #1

    Central lock module buzzing

    Every once in a while my central locking will act up. When I turn the key to lock or unlock, the module will buzz for a second, but the locks dont lock/unlock. Most of the time it works fine, but this happens for a couple days every month or so.

    I've swapped out the central lock module for a known good one, and the problem didnt go away. I only use the central locking from the trunk as both doors won't activate the central locking. When this happens, I can still unlock the driver's door manually then get in and unlock the others doors from the lock knobs, and then lock the doors again from inside when I leave the car, but thats kind of crappy.

    Has anyone else had this happen? Any ideas what to look for? Poor connection at the trunk actuator? Wires shorting out?
  • Bimmerboy91
    Mod Crazy
    • Feb 2007
    • 622

    #2
    i have this going on.....but i can only hear it when i lock the car and the sound comes from the left rear door. im thinking its a lock actuator

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