S4 Wiring Diagram

PostPost by: pharriso » Thu Aug 15, 2013 4:29 pm

I converted Gareth Flanagan's excellent wiring diagram from the tech section from DXF to a PDF file so many more of you can read it:
S4_Wiring_Diagram_Layout1.pdf
S4 wiring diagram
(847.66 KiB) Downloaded 2360 times


enjoy!
Last edited by pharriso on Thu Aug 15, 2013 4:31 pm, edited 1 time in total.
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PostPost by: billwill » Thu Aug 15, 2013 4:31 pm

Thanks.
Last edited by billwill on Fri Aug 16, 2013 12:34 am, edited 1 time in total.
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PostPost by: Stratosboy » Thu Aug 15, 2013 5:14 pm

Thank you, this is really helpful and good timing for me,
cheers :)
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PostPost by: lesesq » Sat Aug 17, 2013 3:59 pm

Thanks to you and Gareth. This will be a great help.
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PostPost by: Apx » Sat Aug 17, 2013 4:26 pm

Thanks for this, a great help and the timing could not be better. Helped me solve a problem. Cheers Neal
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PostPost by: Steve G » Thu Aug 29, 2013 8:51 am

I also did this, printed at A3 and laminated at work, very useful thing to keep in the car.

I've attached my effort as I had to resize the legend text to get it to line up properly, and I changed the base colour from turquoise to grey so it was clearer.
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Lotus Elan S4 Wiring Diagram.PDF
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PostPost by: l10tus » Sun Sep 29, 2013 9:15 pm

Thanks for this diagram, really easy to follow.

Because of the quality attained with this I was thinking, wouldn't it be great to have the Author (or anyone else who's capable), provide us with a similar one including some of the 'upgrades' ..........

I was thinking, with the inclusion of perhaps:-

Alternator
Geared Starter
Electronic ignition
Correct headlamp flasher wiring layout
Additional fuses
Electric fuel pump
Water temp /otter fan switch
Etc.......????

(Some people are never satisfied are they!)

Regards,

Phil.
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PostPost by: gjz30075 » Mon Sep 30, 2013 9:16 pm

l10tus wrote:Etc.......????

(Some people are never satisfied are they!)



How about the 'Fasten Seat Belt' light on the dash? Included is the wiring going to each seat belt stalk. I don't know how common it is but it's on mine, 0243K, January '72 .

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PostPost by: Steve G » Mon Oct 07, 2013 9:24 am

l10tus wrote:Thanks for this diagram, really easy to follow.

Because of the quality attained with this I was thinking, wouldn't it be great to have the Author (or anyone else who's capable), provide us with a similar one including some of the 'upgrades' ..........

I was thinking, with the inclusion of perhaps:-

Alternator
Geared Starter
Electronic ignition
Correct headlamp flasher wiring layout
Additional fuses
Electric fuel pump
Water temp /otter fan switch
Etc.......????

(Some people are never satisfied are they!)

Regards,

Phil.


If you send me a scanned in sketch of the modified diagram I would be happy to CAD it up.
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PostPost by: jbeach » Tue Oct 29, 2019 5:14 pm

Dear All:

I am about to send my '69 S-4 to a local auto-electric shop to tidy up my wiring and help me get my ignition switch working properly. They have requested a wiring diagram, so I plan to color print the the excellent diagram Gareth, Phil, and Steve did in 2013 (see above) on 11x17 paper.

I'm no electrician, but doesn't this diagram indicate a positive, rather than a negative ground? This would certainly not be correct for an S-4.
s-4-wiring-diagram-ground.jpg and


Many thanks!

-John
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PostPost by: pharriso » Tue Oct 29, 2019 7:02 pm

jbeach wrote:I'm no electrician, but doesn't this diagram indicate a positive, rather than a negative ground? This would certainly not be correct for an S-4.

-John


Indeed it does :roll: .... Just swap the +ve & -ve symbols...
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PostPost by: gjz30075 » Tue Oct 29, 2019 8:35 pm

I printed my color schematic on a 2' x 3' (or so) paper, then had it laminated. All can be done in a FedEx
store. Well worth it! I can guarantee this won't be the last time you refer to it. Dirty fingerprints can be wiped off, and the paper is preserved.
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PostPost by: jbeach » Tue Oct 29, 2019 8:40 pm

Excellent, Greg!

So, I email the schematic .pdf to the local Fedex store and have them print it? Perfect. 11x17 (my max, in-house) is clearly not large enough, unless you have a really good magnifying glass.

Thanks!

-John
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PostPost by: gjz30075 » Tue Oct 29, 2019 11:31 pm

I brought it to them on a thumb drive. They know how to keep things in proportion when blowing it up
so as to not go too far.

edit: Ok, so I was a little optimistic. I measured the schematic and it is 19" x 24" with a bit of laminate
overlap. Perfect size to follow the wires.
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