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Joined: Nov 2013
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tezzer Offline OP
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Does anyone have (or know where I can get) the circuit diagrams for the M3W (2013) version? I have the wiring loom diagram but I need the detailed one(s) which show what goes where. My horn doesn't work but the fuse is OK. The flasher unit doesn't work, the Hazards and indicators just stay on or off. I am competent at fixing electical/electronic circuitry, I just need the layout schematics.


M3W makes me smile a lot
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Is this any good to you (p.66)?

M3W electrics

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There are no wiring diagrams available per se but loom diagrams are shown for both pre and post 2014 models within the latest parts manual pdf downloadable here. With patience to decode colour codes most wiring can be traced through the loom as individual wires are numbered as well.

The relevant pages for your 2013 model are 66 and 67. The individual pages of manual are available to download/view as images here which may offer slightly higher resolution.

Last edited by Richard Wood; 30/10/18 11:50 AM.

Richard

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Have you been enjoying your new Roadster, Richard?

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Originally Posted By ShaunD
Have you been enjoying your new Roadster, Richard?


Oh yes thanks wink There's a few posts in the Classics section.

Now starting some winter customisation. Adjustable front shocks already fitted, front spoiler, black powder coated grill, headlight rims and overriders plus custom tool tray.


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Great. Sounds awesome.

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Originally Posted By tezzer
Does anyone have (or know where I can get) the circuit diagrams for the M3W (2013) version? I have the wiring loom diagram but I need the detailed one(s) which show what goes where. My horn doesn't work but the fuse is OK. The flasher unit doesn't work, the Hazards and indicators just stay on or off. I am competent at fixing electical/electronic circuitry, I just need the layout schematics.


There have been a few people with indicator issues which turned out to be the Indicator Module, Morgan Part E340098. Located in the vicinity of the fuse box and ECU.

There are a few threads about it here on TM.
http://www.talkmorgan.com/ubbthreads.php/topics/517572/1
http://www.talkmorgan.com/ubbthreads.php/topics/194229/Turn_Signals_and_Emergency_Fla


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tezzer Offline OP
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Thanks, I have downloaded the book and it looks like it has enough information for me to work with. cheers


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tezzer Offline OP
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Thanks, I will now see if I can crack the problem.
I'll keep you posted.
Cheers
Tezzer


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Was the electrical diagram legible enough to read? I downloaded it and it just is worthless. But so it the wiring practices of MMC. Checkout this fine example of dangling connectors that bang into the aluminum sides and will undoubtedly cause wire fatigue and failure if not fixed. I fixed mine but Lord knows how many are out there with this lurking in their future.

[Linked Image]

[Linked Image]

And then there is this neat bundle, which is not terrible. The photos of the underside near the oil filter are much worse.

[Linked Image]


The light at the end of the tunnel is actually a train. 2019 M3W

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