1997 E36 328i - Window Auto-Up/Down

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  1. 1997 E36 328i - Window Auto-Up/Down 
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    Does anybody know exactly how the window auto up, and auto down works ?

    There's 4 wires to the window switches,
    1. Window Up
    2. Window Down
    3. Illumination
    4. Ground

    There's no seperate wires for the auto function's.... Does it work on resistance ?

    Thanks,
    Ferret !
     
     

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    The end cutout of the motors takes place on the basis of current measurement. After exceeding a maximum current which was recorded and stored as a reference during the initial opening and closing phase (”breakaway phase”), the relevant end position is assumed and the motor is switched off.

    That is for a e46, generally the e36 is the same.
     
     

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    Ferret (16-11-2010)

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    all i know is you press the switch to work it, and press it alittle harder and it does a slight click and then goes automagically up or down
     
     

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    Ferret (16-11-2010)

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    Quote Originally Posted by Ronnie View Post
    The end cutout of the motors takes place on the basis of current measurement. After exceeding a maximum current which was recorded and stored as a reference during the initial opening and closing phase (”breakaway phase”), the relevant end position is assumed and the motor is switched off.

    That is for a e46, generally the e36 is the same.
    I know about the end points of the windows... What I mean, is you press the switch to make the window go up, for example... But you press harder for it to go up automatically.

    Now the same feed for that operation is going down 1 wire, but for 2 separate functions... See what I mean ? What i'd like to know, is how does the ZKE know that I pressed the switch down further and want my window to go up automatically.
     
     

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    Quote Originally Posted by Ferret View Post
    I know about the end points of the windows... What I mean, is you press the switch to make the window go up, for example... But you press harder for it to go up automatically.

    Now the same feed for that operation is going down 1 wire, but for 2 separate functions... See what I mean ? What i'd like to know, is how does the ZKE know that I pressed the switch down further and want my window to go up automatically.



































    Ok then!

    The power window switch features 2 contacts, the positions of which correspond to all switch operating statuses (coded switches). Conventional operation is signalled by the 2 contacts ”OPEN” and ”CLOSE”. The one-touch function is signalled when ”OPEN” and ”CLOSE” are both active simultaneously. The direction of the one-touch function is determined by which of the two signals is activated first.

     
     

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    Ferret (17-11-2010)

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    Thank-you very much :-)

    That's exactly what I needed. I thought it might have been done by resistance, and there being a resistor in the switch.
     
     

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    No probs mate,
     
     

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