my vectra is a 2.2 dti sri on a 2003 plate
it has suffered a big problem with lighting. when u switch igniton on the main beam come one and stays on untill switching off. when you indercate left or right both front indercators come on but the side repeters do not work.
when you switch on the main beam lights the side lights do not work and also when reversing they do not work.
also to throw a spanner in the works the horn does not work
anyone sufferd this sort of problem before