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Central Locking Problem I Cant Figure Out

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    #1

    Central Locking Problem I Cant Figure Out

    I need help after hours reading posts online and troubleshooting I cant figure out why my central locking stopped working. I have a Python alarm that was installed by the PO everything was working fine and I was able to unlock the car with the remote up until a couple of weeks ago. I have:

    1. Spliced the red/black wires behind the speaker.
    2. Replaced the CLCU with a brand new one.
    3. Disconnected the rubber boot and cleaned out the connectors with electronics cleaner.

    My central locking still does not work! With my multimeter I have confirmed that I am getting power to the Python alarm, but for some reason it looks like I am not getting any power from the red/black wire to the CLCU. I cannot figure out why. Also, my lights don't come on when I open the driver door, but they turn on when I open the passenger door. This is both with the stock relay and George Graves dimmer relay.

    I am stumped. Any help would be greatly appreciated!
    Tags: None
    #2
    Check the CL relay connector for corrosion/separated wires, and fuse #27.
    Last edited by cabriodster87; 12-16-2014, 06:09 PM.
    sigpic
    Reich und Roll!

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      #3
      Clean/fix/replace that driver door switch so the alarm sees the door as closed.
      "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

      85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
      88 M3 - LACHSSILBER/SCHWARZE
      89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
      91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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        #4
        Well I made some progress if you can call it that............. Got the lights to come on when I open the driver door by following these instructions: http://www.e30tech.com/forum/showthread.php?t=45809

        Does anyone know why the interior lights wont turn on when wired up like from the factory? I am sure it has something to do with my CL not working? Thanks in advance!

        I did put in a brand new door switch and that did not help.

        Also, anyone know why the interior lights turn on for a split second when I turn the key in the ignition to on? Would a short somewhere cause this? Any help would be greatly appreciated! This happens when the door switch is wired like from the factory using two wires.
        Last edited by eshtog; 12-28-2014, 01:16 PM.

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          #5
          Interior lights get constant power from the fuse box. It's always has 12 volts going to it. The door switch provides a path to ground.
          Originally posted by Matt-B
          hey does anyone know anyone who gets upset and makes electronics?

          Comment

            #6
            Originally posted by george graves View Post
            Interior lights get constant power from the fuse box. It's always has 12 volts going to it. The door switch provides a path to ground.
            Makes sense, my door switch is not grounding out for some reason. I have looked all over the place and cant figure out where I have a brake in the wire or loose connection. Where do the wires in the door switch end?

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              #7
              At the interior light relay socket.
              Originally posted by Matt-B
              hey does anyone know anyone who gets upset and makes electronics?

              Comment

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