Has anyone seen or know where I might be able to purchase one as I have a hi/low beam problem
Rgds
Haz:

Hi, hazza,
There is on online at:
http://www.initrart.com/product.php?cat=6&prod=42&mode=proddetail

They do list the wiring diagram for Nissan, 1978 - 2005.
Best wishes, and good luck.