Light problems

[Conner]

Hello, I have a vauxhall corsa 2006 sxi+ when I turn my sidelights or my headlights on my main beam is coming on aswell. I thought it might have been the switch or relay and it's not so I did some digging under the bonnet and seen there is a black and white wire not connected to anything can some help me is that the reason why the side light is not working and bringing the main beam on aswell also on how to fix this problem without getting a auto electrician so sort it at £70 a hour.

Many thanks 

Conner

[Vauxhall Owners Club]

That sounds like a bad earth and the current is finding its way to another bulb
Also, another common issue is that there may be an incorrect bulb fitted somewhere else in the car and it is back-feeding the lighting circuit.

Check the bulbs are correct and check the earths!