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Stelvio electrics problems

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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2018 at 11:52
Originally posted by Wilko Wilko wrote:

The fuses seem OK. Have swapped them around. The blue main beam warning light on the dash comes on when I use the flash function but not the main beam itself.

OK then, suggests to me any of the multi-pin connectors between the light switch, dip switch and the headlight unit. Could also be a bad earth to the headlight unit. I think the alternator thing is a separate issue. Often just unplugging something then plugging it back in can restore a connection. Same applies to fuses. (Guess how I know.)


HTH



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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2018 at 12:15
On the stelvio and all the other 8 valve Guzzis, for some reason the alternator exciter feed is run in parallel with the headlight from this light logic relay, so both faults are almost certainly connected.

No I can't explain why they designed it this way.
Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2018 at 20:39
AH!!! The cynic in me thinks, to make work for the mechanic Big smile



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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2018 at 22:01
Honestly on these newer models, the "logic" in the wiring beggars belief.

Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wilko Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 19:14
Hello to everybody. Update on my Stelvio problem. Doug gave me some very useful links to Wildguzzi and so it was with a deep intake of breath I set about removing the tank to get to the alternator. Took off the spliced connection that evidently can breakdown. Everything looked like new. Having swapped relays and fuses and not knowing what else to do I had pretty much resigned myself to having to take the bike in to a specialist and began putting everything back together.  In the process, decided to clean the connections to the battery with a bit of emery paper as they looked a bit corroded. Put the seat back on and thought let's give it a try to make sure she'll start up and ....... lo and behold dip and main beams now working and 14.3V on the dash! There is a god!  Maybe it was something as basic as corroded battery terminals.  I don't know but maybe some of the more technical of you guys might have some thoughts on that.  Whatever, my sincere thanks to everyone who has offered their help with this.  In love with my Stelvio again.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 19:41
Corroded battery terminals.

Well I'll stand at the foot of our stairs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wilko Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 20:02
Eeh. By gumm!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 20:49
Originally posted by red leader one red leader one wrote:

Well I'll stand at the foot of our stairs.

Little boy sits at the foot of the stairs,
Clutched in his hand, a tuft of white hairs.
Oh dear, just fancy that,
Christopher Robin's castrated the cat.

Yes, corroded battery terminals can cause lots of problems.
Brian.

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Doug View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Doug Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 20:50
Well done sir! 

Might be an idea to put a bit vaseline on the terminals, it should help to prevent corrosion.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 20:52
Just goes to show it's always worth checking the silly little things before delving into the difficult and expensive bits.
Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 20:58
I always liked Dick Emery.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote V7Chris Quote  Post ReplyReply Direct Link To This Post Posted: 11 Aug 2018 at 22:30
Well for someone who told me they didn't have any technical ability, you seem to have done ok Wilko. Well done, now get on with the decorating!
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