I've checked the fuse, changed the on/off switch, and the relay switch. It still does not work, and the light does not come on. is there an on-line fuse or anything else I have missed that could be the problem?

Macdonald, November 2007

The same has happened to my 4x4 and I realised the actual circuit on the window has several breaks in it caused by my sheep dog scratching it. Im just trying to find some paint to repair it with - you used to be able to get some from Halfords but not any more. Found these websites which have some repair kits for sale. Hope its of some use.
http://www.triumphshop.co.uk/Quiller/Parts/new_products/rear%20screen%20demister%20repair%20kit.htm
http://www.gbdriver.co.uk/acatalog/car-windscreen-window-headlamp-repair-kit-DIY.html
Cheers

Tom Lane, December 2007