Thank you to everyone who helped, water in the fusebox had caused fouling which sent resistance to the ignition switch burning parts of it out. Have cleaned and rebuilt the fusebox, new switch is on its way and temporary toggle switch is in to allow me to use it at night. When the new switch is here ...

thanks for trying to help, jumped the connections in the ignition barrel connector and have proven that its the ignition switch that is at fault, does anyone have any ideas on where to get hold of a new one

my last update was slighlty misleading the rear lights are working the headlights are not, and relay 18 operates when you hold the headlight falsher on with the lights switched to the on position, i think i am starting to suspect the the ignition switch may be up the spout but have no real way to ...

Starts and runs fine, indicators work brake lights work and high beams work on flasher unit

also just noticed that whilst high beams are are on by using the flash everything comes back to life, odd
opened relay 18 and if i operate by hand everything works

My GT2 has decicided to develop a lovely fault, the lights heater fan, electric windows have all decided to stop working at the same time, as though the ignition was stuck in the start position (cant tell if it actually is as the starter has been moved to a push button).

I have checked the fuse box ...