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Central Locking Kaput..

Discussion in 'E46' started by jarance, Jan 12, 2009.

  1. zidee

    zidee Active Member

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    Bro Jarance,

    What is the sign of door sensor close kaput. If it s not working do you think interior light is not responding to on/off and alarm will be triggered if i lock using remote? In my case the interior light is working as per normal and no alarm triggered.Display on instrument cluster also did not indicate right door open. Maybe it works differnetly. I understand to remove and fix the actuator is rather PITA. I hope I don't have to do that.

    Appreciate your advise.

     
  2. jarance

    jarance Founding Member

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    can you get hold of the dcan cable and inpa? the inpa program can easily identify the status of the door.
     
  3. zidee

    zidee Active Member

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    Yes i do have DCAN cable and INPA. Which option should I use to check? I'm rather new to INPA. Use PA Soft most of the time.

    I already rulled out fuse 53 at the trunk as if i remove that fuse, all the lock will not respond via remote. My problem is only not locking the front driver side.

    As per Jarance suspect, I'm now quite certain it is a door lock actuator. Below pic is the spare unit I have.

    [​IMG]

    Below is location of the actuator on top of the door lock mechanism.

    [​IMG]

    I tried to remove the lock mechanism but not able to do so as i'm sure what else is holding it after i remove all the outer screw.

    Any idea whats holding it? Was it the outer door handle hook?
     
  4. jarance

    jarance Founding Member

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  5. zidee

    zidee Active Member

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  6. jarance

    jarance Founding Member

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    Using INPA, you can go to body and check the ZKE or GM5 module.
    There is a selection for input status check.
     
  7. zidee

    zidee Active Member

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    Tq bro. I will look into it.
     
  8. jarance

    jarance Founding Member

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  9. zidee

    zidee Active Member

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    Thanks. That is for the rear E38 so the "access" is rather different. The is video on E46 as well. I had the feel I did not unhook the Bowden cable for outside door handle. I will give it a try again.
     
  10. Alex5522

    Alex5522 Club Guest

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    Bro Jarance,

    This the method(as red words on your posting) my friend help me to save a lot money to change the new GM5 module. The only diff mine was not the door problem and it was my rear right window can't roll down but can roll up. He use 2 pcs of relay and 1 pc of 15 amp fuse for safety purpose. Two wires need to cut and another two wires he just pry off the rubber and tapping the wires of the new relay.
     
    jarance likes this.
  11. jarance

    jarance Founding Member

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    you mean something like this?

    [​IMG]
     
  12. Alex5522

    Alex5522 Club Guest

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    Bro Jarance,

    The connection and the soldering part was a bit dif as your pic above.

    Sorry for can't really give you the actual conection of the wiring being done from my friend to my GM5 module cause i am away during the connection when he is doing. But i am really happy that he can help me to do the surgery and modificaion on the relays. It's really works and save me quite some money to replaced a used or new GM5 module.

    Below some pics i manage to snap while i am around his shop;
    This is my GM5 Module and he did make a hole on the casing to fish out two wires after he soldering from the module card
    [​IMG]
    He modify and using 2 nos of this type of 5 leg relays and the socket and rewired it outside to replace my damage ori relay on the GM5 module.(Pic borrow from website)
    [​IMG]
    He did using a piece of this type of 15 Amps fuse for safety purpose on the connection (Pic borrow from website)
    [​IMG]
    This the Front view of the module card and he told me one of the relays in red circle was damage
    [​IMG]
    This the back view of the module card and he did soldering two wires on the leg of the damege relay and fish out this two wires through the hole of the casing of the module as the top pic shown
    [​IMG]
    He did cut off two nos of wires from the red circle (total disconnected) and peel off the rubber of another two wires here too to tapping the two soldering wires which he was done earlier. Sorry that i am not really sure which two wires being cut and which two wires being tapping. (Pic borrow from Jarance posting)
    [​IMG]
     
  13. jarance

    jarance Founding Member

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    what your friend did was tapped the open/close control signal from the existing relays to energise the two external relays.
    then he power the existing motor from the new relay. QED.

    As for me, I use 2 miniature relays and all the wiring modification is done inside the module.

    Both methods works.
     
  14. loksim

    loksim Club Guest

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    HI Jarance
    My 2004 X5 now experience some of these faults, 1)petrol cover cant open, back seat left right actualtor can lock but cant unlock, but both door acn open manually from inside, i change 2 of the back seat door actuator but still the same, look like the GM module faulty, can you help?
     
  15. jarance

    jarance Founding Member

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    Loksim, what type of help do you need?
    If you think the GM5 module is faulty, you can borrow a module from a friend who have the same model.
    Swap it and resync the key and test it. If it work, you can get a replacement from the second hand shop.
    GM5 module do not need re-coding to your car.
     

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