1996 E36 convert ecu???

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  1. 1996 E36 convert ecu??? 
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    169MATT's Car Details
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    Hi, a friend of mine has an e36 from 1996, with a semi automatic convertable roof, the control unit was removed befor we got to it, it has space for 4 plugs in it but can only find 3 on the car???. When plugged it in nothing happerns at all. Diagnostics wont talk to it either, please help
     
     

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    So the ecu you are fitting has 4 plug sockets and your car only has 3 plugs right!

    if this is the case are you sure that you are trying to fit the correct ecu i can only think the possibilty for that combination could be the 4 socket ecu is for a fully auto roof (just an idea though as i`ve not come accross this before)

    Maybe some kind member here will look at theirs and tell you what they got
    fitted to their convertable
     
     

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    Just a thought, could one port be for diagnositcs direct from the module ??... or is that done through the odb/20pin connector?

    If you can wait til the weekend I'll will have a look at my semi auto softtop module and let you know how many plugs go into it.....
     
     

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    or is that done through the odb/20pin connector?
    It is indeed
     
     

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    If u could look would be a massive help, it will let me no if im chasing shadows or not
     
     

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    Quote Originally Posted by 169MATT View Post
    If u could look would be a massive help, it will let me no if im chasing shadows or not
    Matt,

    Sorry about this but I've not had a chance to look yet, I ended up working over the weekend and didn't get chance last night, tonight I'm out again but I'm hoping to look tomorrow. I need to know too because my roof isn't working and all tests seem to be pointing towards the control box.
    All the web searches I've done seem to suggest all roof modules have four plugs.... also, the way I read the realoem there was originally just a semi-auto roof with an associated ecu then a full auto roof was added with an updated ecu to suit but that updated ecu also supported the semi-auto roof and from there on all roof ecus work with all roofs....would guess therefore they all have the same number of plugs whether fully auto or not.... . ....anyway, I should have an hour free tomorrow morning so I will do my best to check....
     
     

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    4 sockets and three plugs on mine..... therefore it looks like there is just one box for all roofs.... does anyone know otherwise before I buy a fully auto control box off the bay??
    Attached Images
     
     

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    Dr of BMW gildersol's Avatar
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    Can't tell from the photo, but are the connectors 10 pin, 6 pin, 26 pin and 12 pin? If so which one has no wires plugged in?
     
     

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    Yes they are and it's the 12pin that isn't plugged into anything.

    Info on the unit is:-

    Cabrio-Verdeck-Modul 12V
    BMW 61.35-8 378 795
    55892110
    HW 22 SW 60 CI 01

    .....not sure which is the part no.!!

    Mine is a semi-auto roof'ed car recently purchased with a non working roof, the module above is as it was in the car I don't believe it to have been changed by the previous owner. The roof doesn't work at all, if the reset procedure is followed then after holding down the roof up button and turning on the ignition the windows drop but the roof doesn't do anything and then the windows drop a little further but still no roof movement.....this repeats for as long as you hold the button, almost like the windows drop then the roof is supposed to spring into action but it fails so the car starts the sequence again and drops the windows further....
    Carsoft 6.5 reports "module does not respond" when trying to diagnose the CVM. The motors all function correctly if juiced up manually and the micro switches test okay (the tonneau to boot one is definitely working) I've kinda concluded it must be the control box thats goosed so I've just bought a known good, used fully auto softtop module from a 97 car......not sure if it should work with my car or not, the realoem seems to suggest there was just one module in the later cars??..... suppose it was cheap enough if I have to re sell it but hoping it will fix my issues.....
     
     

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    Dr of BMW gildersol's Avatar
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    Judging by the wiring diagram, there is a difference between the semi-automatic and the automatic as far as the wiring and connections to the module go, but it's just a case of certain pins used for one setup and not for the other. The 12 pin connector would only be used on the fully automatic setup.
    No reason to think that the same module wouldn't do for both but I couldn't be sure.
    If you do try the one you've got, let us know how it goes in case we can help further.

    Have you checked fuses F35 (25A), F7 (5A), F43(5A), F27 (5A)
     
     

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