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Thread: Help! Electric Rear Curtain Wiring Question

  1. #1
    Join Date
    Jan 2006
    Location
    Manila, Philippines
    Posts
    32

    Default Help! Electric Rear Curtain Wiring Question

    Hi guys. I brought my car for reupholstering of the rear board which also houses the electric rear curtain. When the board was being dismantled, the guy taking it out was not aware that there were still several wires connected and when he gave the board one last pull, four wires connected to the motor of the curtain detached from what seems as a module. The problem now is, there are 9 pins but only 4 wires. I don't know now which wire goes to which pin.
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  2. #2
    Join Date
    May 2004
    Location
    Japan
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    9,250

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    http://www.e32-schrauber.de/bmw/date...img0368mod.jpg
    http://www.e32-schrauber.de/bmw/date...nshade_mod.jpg

    translate this testing instructions for trouble shooting, that shouold give you enough info:
    Elektr. Sonnenrollo geht nur in einer Richtung - Steuergeraet
    Sollte bei dem elektrisch betriebenen Sonnenrollo an der Heckscheibe einmal der Fehler auftauchen, dass das Rollo sich nur noch in einer Richtung bewegen laesst, kann das an dem Steuergeraet liegen. An dem Steuergeraet befinden sich zwei Buchsen,
    einmal fuer den Motor (PIN 1 und 2) und einmal fuer die Spannungsversorgung (PIN 5) und die Steuerimpulse 12 Volt (PIN 1 und 2). PIN 3 ist Masse. Das Steuergeraet enthaelt zwei Hochlastrelais zum Umpolen der Motorspannung. Dadurch laeuft der Motor sowohl links als auch rechtsherum. Abgeschaltet wird der Motor ueber eine vorgegebene Zeit.
    Der Fehler bei dem entsprechenden Modul war, dass es zwar auf, aber nicht mehr zu fuhr. Eines der Relais hatte eine kalte Loetstelle. Die Loetstelle von dem Schutzlack befreien und sauber nachloeten.
    Zum Testen kann man anstelle des Motors auch eine 10 Watt Birne mit Pruefklemmen anschliessen.

    DIY Made by my friend Wolfgang from Germany http://www.e32-schrauber.de/bmw/s-heckrollo.htm
    also see wiring diagrams sunshade gear http://www.bimmernut.com/forum/showt...ctric-sunblind
    Here are more pics from Austria http://www.ah525i24ve34.at/HTML_ah52...en_erollo.html


    In case your plastic gear is broken, I still can supply the steel toothed wheel for the rear sunshade gear
    http://www.bimmernut.com/forum/showt...ctric-sunblind

  3. #3
    Join Date
    Jan 2006
    Location
    Manila, Philippines
    Posts
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    Thank you once again Shogun! Now I can sleep soundly.

    A follow up question, do you guys that have the rear curtain on your cars, have a notch of sorts somewhere in your upper C-Pillars where the curtain should latch or end up when its fully extended? My C-Pillars aren't original anymore and when my curtain is fully up, it just hangs there without any support. Which seems odd for me coz seeing how it wiggles when the car moves makes me think could this be some design flaw?

    Thanks.

    Ariel

  4. #4
    Join Date
    May 2004
    Location
    Japan
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    see here under retrofits, there is the original retrofit instruction for E34 and E32 http://www.e38.org/e32/
    and here under SA Sonnenschutzrollo http://www.ah525i24ve34.at/HTML_ah52...leitungen.html

  5. #5
    Join Date
    Jan 2006
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    Manila, Philippines
    Posts
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    Default

    Thanks for the help! Everything is back to normal. :-)

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