John Bonnett
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| posted on 13/1/12 at 02:47 PM |
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A question for our auto electricians
I'd be grateful if someone could identify the Siemens component on the base of this Rover 75 interior fusebox and let me know its function. Pics
attached. I think the black box is a relay but there is some circuitry associated with it.
Thank you
John
 
Description
 
Description
[Edited on 13/1/12 by John Bonnett]
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jossey
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| posted on 13/1/12 at 03:10 PM |
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window motor or door lock if my memory serves me rightly.
dont you have access to the haynes manual or PDF haynes manual???/
Thanks
David Johnson
Building my tiger avon slowly but surely.
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Peteff
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| posted on 13/1/12 at 03:14 PM |
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Is there a picture under the lid of what they all do ? There usually is.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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John Bonnett
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| posted on 13/1/12 at 03:22 PM |
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quote:
Originally posted by jossey
window motor or door lock if my memory serves me rightly.
dont you have access to the haynes manual or PDF haynes manual???/
No, I got it from a scrapyard for my Triumph GT6 so no documentation. It is not as straightforward as I thought and has posed a number of questions.
For example, I've spent a number of hours with a multi-meter and as yet have not identified any wires associated with the 30Amp fuses.
I've yet to verify this but it does seem as if some wires that are live, cease to be live when a fuse is removed and then repolaced. I cannot be
certain of this until I have tried it a number of times but my head is starting to hurt 
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jossey
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| posted on 13/1/12 at 03:26 PM |
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GULP.
Well i will wish you the best of luck and appologies I cant offer any help on that.
I guess you need to check the wiring quality next.
quote:
Originally posted by John Bonnett
quote:
Originally posted by jossey
window motor or door lock if my memory serves me rightly.
dont you have access to the haynes manual or PDF haynes manual???/
No, I got it from a scrapyard for my Triumph GT6 so no documentation. It is not as straightforward as I thought and has posed a number of questions.
For example, I've spent a number of hours with a multi-meter and as yet have not identified any wires associated with the 30Amp fuses.
I've yet to verify this but it does seem as if some wires that are live, cease to be live when a fuse is removed and then repolaced. I cannot be
certain of this until I have tried it a number of times but my head is starting to hurt
Thanks
David Johnson
Building my tiger avon slowly but surely.
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swanny
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| posted on 13/1/12 at 03:47 PM |
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you could always pop along here.
http://www.the75andztclub.co.uk/forum/
some very friendly and informative folk, including a few ex staffers at Rover. A fount of knowledge and some very clever electrics guys. they may be
able to identify the lot and save you some time
paul
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John Bonnett
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| posted on 13/1/12 at 04:33 PM |
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quote:
Originally posted by swanny
you could always pop along here.
http://www.the75andztclub.co.uk/forum/
some very friendly and informative folk, including a few ex staffers at Rover. A fount of knowledge and some very clever electrics guys. they may be
able to identify the lot and save you some time
paul
Thank you all for your replies and to you Paul for the link. The depth of knowledge on this Forum never ceases to amaze me.
John
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lsdweb
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| posted on 13/1/12 at 05:25 PM |
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Plenty of data if you google the part number
here
Wyn
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John Bonnett
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| posted on 13/1/12 at 05:40 PM |
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quote:
Originally posted by lsdweb
Plenty of data if you google the part number
here
Wyn
I now know it is a " Switch Mode Power Supplies Encapsulated Constant Current " Clear as mud 
but thanks for the link
John
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lsdweb
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| posted on 13/1/12 at 05:43 PM |
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I think it's a twin relay - window related possibly!
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paulf
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| posted on 13/1/12 at 05:55 PM |
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I have a rover 75 works manual and will try and look latter when lm at home.
Paul
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daniel mason
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| posted on 13/1/12 at 06:00 PM |
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some of the 30 amp fuses could be the feeds to relays,meaning the wires may not come live unti the coil is activated. am sure you knew this anyway but
thought it may be worth mentioning
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John Bonnett
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| posted on 13/1/12 at 06:24 PM |
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quote:
Originally posted by paulf
I have a rover 75 works manual and will try and look latter when lm at home.
Paul
Thank you Paul, that's very kind of you. I have downloaded a pdf file showing what the various relays and fuses do so there may be little more
that the manual will tell us unless it shed light on the Siemens gadget. Providing it dosn't interact with the other fuses I can disregard
it.
Daniel, my thought as well that there may be an internal connection within the box itself but there appears to be no continuity between the relay
contacts and any of the 30Amp fuses so a bit of a mystery really.
I'll attack the job again when I'm fresh and make sure my connections are good.
Thanks once again to everybody who has replied.
John
[Edited on 13/1/12 by John Bonnett]
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deltron63
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| posted on 13/1/12 at 08:22 PM |
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I used on of these, A great pice of kit
http://www.cbsonline.co.uk/product/CBS_12_Circuit_Wiring_Module_WRMOD
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bi22le
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| posted on 13/1/12 at 08:35 PM |
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Maybe try working backwards,
Start the car the pull the unit out. See what doe snot work!
Make sure you have no air bags though.
Track days ARE the best thing since sliced bread, until I get a supercharger that is!
Please read my ring story:
http://www.locostbuilders.co.uk/forum/13/viewthread.php?tid=139152&page=1
Me doing a sub 56sec lap around Brands Indy. I need a geo set up! http://www.youtube.com/watch?v=EHksfvIGB3I
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John Bonnett
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| posted on 14/1/12 at 07:49 AM |
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quote:
Originally posted by deltron63
I used on of these, A great pice of kit
http://www.cbsonline.co.uk/product/CBS_12_Circuit_Wiring_Module_WRMOD
I need a few more relays than that one offers which means more fuses as well and of course there was the question of price. I paid under £5 for the
Rover one.
bi22le keep up at the back there 
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paulf
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| posted on 14/1/12 at 10:04 PM |
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Hi John I have just looked for my manual on disk but cant find it at the moment, I do have this link to an on-line version which shows all the
electrical circuits if you sort through it http://en.rover-club.net/graphics/manuals/12/r75_body_electrics.pdf .It may be the one that you already
have as I cant see any direct reference to the module you require info on.
If still stuck I will have a look and dig out the original Rover disk.
Paul
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John Bonnett
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| posted on 14/1/12 at 11:02 PM |
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quote:
Originally posted by paulf
Hi John I have just looked for my manual on disk but cant find it at the moment, I do have this link to an on-line version which shows all the
electrical circuits if you sort through it http://en.rover-club.net/graphics/manuals/12/r75_body_electrics.pdf .It may be the one that you already
have as I cant see any direct reference to the module you require info on.
If still stuck I will have a look and dig out the original Rover disk.
Paul
Paul, that's really kind of you. I appreciate the time you have taken on my behalf. I'll get stuck into it.
Best regards
John
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