Wiring diagrams help

[jleyton]

I remember seeing something on here recently about wiring diagrams but, despite using the search facility, I can't find what I thought I remembered.

I'd like to think that I'm reasonably savvy at vehicle electrics but it seems to me that the official wiring diagrams bear little resemblance to reality in certain key areas. Am I right?

I know there's been talk about interior lights in the past and I've got problems in this area.

From my recollection, all Leyland carsin the 70s, including the Stag, relied on a single wire to a door switch that completed the circuit by connecting to earth when the door was opened. However, not according to the wiring diagrams whichshow the swith connecting a +12vpurple to either a Purple/red (RH) or Purple/slate (LH) wire.

I am sure that, given time, I can work it all out however if anyone has any advice or guidance that can save me time I'd be very grateful.

Cheers

Julian

[Stagdad]

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My 74 stag has 2 wires to the door switch's which are connected together when the door is opened and not put to ground .so not all have 1 wire.

Your diagram sounds like it's right for mine, the wires then go on to the interior light switch next to the window switch's

Cheers Steve

[jleyton]

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Thanks Steve,

In a bizarre way, that's slightly reassuring ! I'd spent ages digesting the diagram and working out exactly how it all worked and was then disappointed that all my effort was in vain when my car was nothing like the diagrams.

As you say, yours seems like the diagrams as they also show purple wires on terminals 1 & 2 of theswitch (although they do show them as one wire spurred off to two unlike your pic?). On mine, I have a black wire although whether this is an earth or not I have not yet checked. To add to my confusion, the roof light has a black wire that one would imagine to bean earth however you can disconnect it and the light continues to operate !

So, I guess I've got some investigation on my hands - never mind, I quite like that sort of thing.

I would be interested to know if anybody else has the single wire to the courtesy lights - which I thought was the norm.

Cheers

Julian

[V Mad]

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Julian, there is a simple answer. Early cars had door switches which had two live connections, and were wired differently to later cars which used a 1-wire earthing switch. You just need to get the right diagram for your car.

[jleyton]

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Thanks Chris

I've also just found the thread about this from a couple of weeks ago, although it didn't show up when I used the search facility :?

I'd already searched the official Triumph workshop manual,as well as Haynes but as theyreferred to LD 20000 onwards,I assumed it referred tomy LD 30000 onwards. I see now that it doesn't.

Do you, or anyone else, know where I can get a diagram for LD 30000 onwards? It'd certainly save me some time if I could get one.

Cheers

Julian

[V Mad]

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Julian,I think you will find that LD2000 on are all the same ie the single wire system. If your car has the single door switches then just check it is wired up correctly as per LD2000 onwards. If it still doesn't work properly then test the switch (ask me again for how to do that if you need it).

[Stagdad]

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Also remember there are 2 bulbs in the interior light fitting on the t bar ,1 comes on with each door and they both come on with the consolswitch.

Cheers Steve

[whereufromnosecity]

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Mines a 1977 and has the MK1 twin positive wire door switch set up, took me ages to solve my interior light woes, a pair of MK1 door switches to replace the earth type door switches soon sorted it out

Stu E

[jleyton]

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Thanks Chris, but all the wiring diagrams that I've seen for LD 20000 onwards show the two wire system, rather than the one wire to earth that I've got.

This is what DJT Dave said on another post: "FWIW the door switches didn't change until at least the 4th Sanction Stags. That is LD30000 and onwards" and it seems to me that that he's right. As LD43620, my car is a 5th sanction car - which can't be far away from your new green one?

I've checked outmy switch and it'soperating correctly - on the LD Parts site they've got a handy diagram confirming the connections but also showing the current path when switch is both on and off. It does however show purple leads to terminals 1 &2, like Steve's picture, but mine has black (earth?) wires.

So, I think I'm still looking for this elusive diagram with a single wire to earth door switch arrangement for a pretty late car. Help anybody please

Cheers

Julian

[V Mad]

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Sorry Julian, I didnt realise the single wire system is not shown on the LD2000 onwards diagrams.

If you go to the main SOC website and log on to the members section you will get access to the 'Technical Reprints'. There IIRCyou will find a diagram showing the correct wiring for late cars.

I think this is it:

[V Mad]

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and the page you need is here

[Dieter H. Marschall]

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Hello VMad,

how exactly can I get to this website with the "Technical Reprints"? I am stupid enough not to find it.

Kind regards, Dieter.

[jleyton]

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Hi Dieter,

You're not stupid at all. I went through exactly the same thing - thought I was being stupid then Chris told me that they weren't on the technical pages.

He very kindly e-mailed them to me and the least I can do to thank him for that is to save him the trouble of sending them again, to you this time !

So, if you'd like to PM me with your e-mail address then I can send you what Chris sent me.

I'd just like to thank Chris again - he's always helpful and the diagrams look to be spot-on. I've nowgot to check them against the car (I'm very optimistic) but it's just too damned cold at the moment

Cheers

Julian

[V Mad]

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Hi Dieter/Julian

I am not imagining things. The schematic I am referring to is, as I thought in the Technical Reprints on the SOC main website. For your information:



Go to the main club website http://www.stag.org.uk/

click on the fuel cap (top right)

enter the username and password (this is in the magazine General Club Information page under INTERNET)

on the menu point to MEMBERS AREA and click TECHNICAL SECTION

on the page that appears click on CLICK HERE

then you will see the TECHNICAL REPRINTS document which is a collection of articles from previous magazines

Click onpage 214 on the laft menu and you will see the diagram.



Did you find it OK? If you scan through the whole document when you have some spare time, you can become a virtual stag expert as it is full of useful information. The mainshortcoming though is there is no single correct solution to many of the problems so you may not get a definitive answer to all your problems.

Regards, Chris

[jleyton]

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Hi Chris,

All found ok now, thanks.

However, as I mentioned in my PM, it is often hard to find things in those technical reprints - I had searched through the electrical section last night, although it was obviously my fault that I missed it.

Next problem is trying to print anything from there :X

Thanks again Chris - I'm now going outside to brave the cold and check wiring !

Cheers

Julian