Hi my car has just randomly decided it doesn't like reverse, I started the car at work reversed out of the parking bay and drove home no problems at all. When i reached home i put it in reverse to back into a bay and it cut out and wouldn't restart.
I have discovered that fuse 15 blows everytime i put it in reverse now with no hints of reverse lights coming on and not even a bleep from the park pilot all that happens is the dash lights dim and then go out (when the fuse blows).
The question i have is, is the reverse light switched live as i always thought they were negative, i'm hoping this is the case and all is needed is a new switch rather than something more sinister. as i put it in Vauxhall a couple of months ago due to a relay draining the battery flat which cost me near on £300!

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Any help or advice would be much appreciated as the thing is 1 step away form the scrap yard!
2002 2.6 MV6.