Front fog lamp without function

Good evening! I have a new one since Saturday! It is a V70 of the first generation with just under 280TKM, 1st hand so half as wild, always very well maintained etc… The only problem is: The fog lights don’t shine. So you press the button, which then also lights green, only the fog lights don’t shine. Before I try wildly now etc. I have searched for a natural way in the forum, and actually only found something about the relay occupancy with regard to the fog lights. Does anyone have another idea, or will it be the relay? Greetings, Hjalmar