I've got the LED tail light and she no work. Brake light is working, as are the headlight and light in gauge.

My question is, as there is no globe to change, would I have to replace the whole unit? Hoped that it was on a separate fuse, but no such luck.

Replacement of the unit will depend if its a sealed unit or if you can pull it apart and gain acess to the circut board.
L.E.D.s can be replaced if thats the fault.

But as 05 said chase the power before you pull the whole thing apart.

I had a factory LED on my fatty, same prob, pulled it apart ( easy process, couple of phillips head screws and a gentle prise to break the gasket seal ) to access the circuit board and found a wire had broken off, quick solder job and worked as good as new, all up 20 min job

Thanks Yeah it's the original light. was ok, then stopped working. will investigate further, just thought it may be a sealed unit due to being LED?

Cheers GT