Right signal light not working on 1998 BMW 328is

Have replaced bulb still not working

Asked by for the 1998 BMW 328is
ck for pwr and grds at socket
1 more answer
is this for the front or rear? if the other (front or rear) does not light either, you have a problem at the combination switch...if the other (front or rear) flashes rapidly, check for power and ground at the problem socket.