I have a 2015 Soul. Someone hit the driver side mirror and I replaced it with a used one I found. The turn signal light is not working. It could have been bad when I bought it, but was wondering how to check this. I've taken the light off and looked it over. It doesn't seem to have any cracks or anything, but not sure about the inside of it. Any advice ??? The passenger side turn signal light and all others turn signal lights are working fine.