I have followed Dave's plan.
put in a new fuse.
Input 12v - no problem
Switch test with output connected to test bulb - no problem
Re-connected everything and - no problem, brake lights working.
Realised that the reversing light is on the same fuse so checked the bulb . looks alright.
Pt the car in reverse, no engine just ignition on, Blew the fuse.
I will have a look underneath tomorrow at the fitting but where do i find the reversing switch ??
hope its not in the gearbox.
Thanks for continued assistance
