There could be a separate fuse or relay for each side. Check the names of the fuses in the owner manual. If there are not 2 screws in the front to take the whole light out, you will have to go in from under the car and remove the light bulb from the back. That means the splash guard under the bumper may have to come off (6 clips I think). Once you see the back of the light assembly, I'm pretty sure you either twist the bulb out or un-clip it. If it is a halogen globe, be careful not to touch the globe itself otherwise the acidity form your hand will cause the new bulb to blow prematurely. I would test the bulb when you remove it cos it could be a relay problem!