No brake light

[rog60]

^yep
and also use your multimeter to test the switch
remembering that there should be continuity when the pin is out

And make sure you've got a good earth to frame from reflector.................

[Bilko]

Went out the morning to have another look and for whatever reason, the back light and brake light work. A bit frustrating without knowing the cause. I'll keep a close eye on it.

Thanks for all the help.

[Fireman Ash]

Check yer bulb as they can be faulty and intermittant, happened to me at the MOT station. I always use a multi meter now as previously suggested..