Chris Dugan wrote:

I start to really mess about with the car's electrics, any

suggestions as to what the problem could be?

Try swapping another festoon bulb from any other location in the car; it
could be that you have a fractured element in the bulb letting it work
intermittently.

Chris

Yeah, I'll have a look at that later. But since all the interior bulbs are now out something is wrong somewhere. I was thinking maybe the dimmer is damaged, keeping the bulbs permanently dimmed (ie off)?

--
Abo