Hi Pizzaguy

So I jumped the relay to see if the lights would come on and they didn’t. I found a short at the left brake light, fixed it and voila all lights on.

However still no lights when I press the pedal. So I must have had two faults and that is what held me back.

Anyway, checked brake switch and there is power there, relay is fine and so the next port of call must be the brake controller module like you said. I think it is this thing that I have taken a photo of but it looks totally different to the service manual 🙄

Is this the right thing? The manual says cavity one needs checking for voltage….