Here are some materials from the 'net I found helpful. Might be the same stuff others have posted links to.
A word of caution on wire colours. Lotus colours for this circuit
can be non-standard (i.e. not exactly following
British Standard BS-AU7). At least they were in my Plus 2. Long time since I looked at the stock circuit, but I believe they even changed the park circuit wire colour at one of the main loom connectors in my car.
I provided a 'conversion' of the Lotus colours in my car in the Smartscreen post below that might help you out, although your model may use different colours.
Once you get the wiring at the wiper motor correctly figured out, would recommend adding the correct plug; not sure with your particular model, but mine had separate female spade connectors and it would be easy to mis-wire if disconnected for repair. Can be a bit confusing if a given connector picture is representing the plug or motor side.
I got my plug here, although pretty sure there are other suppliers:
http://www.britishwiring.com/Wiper-Moto ... p/c805.htmBill, I successfully added after market Smartscreen intermittent wiping to my Plus 2 and posted some info here. Still happy with the devise, and it is particular to the standard vintage Lucas set-up so the install is not too bad.
elan-mods-f31/smartscreen-intermittent-wipers-review-t25502.htmlThe Smartscreen functionality is similar to intermittent wiping using a particular Hella timing relay in place of a standard five pin. This is how it works in the Esprit world. I found it worth it to buy the Smartscreen for the Elan to make the wiring easier.
HTH
Stu