I had the same problem last year. I replaced the
Volvo tail lights. The lights were functional but when used in my car, they are out. I had the problem for a week and that was really a headache. I ask my friend to have it fixed for me. He was able to do so. And I didn’t even ask how, I didn’t want to have confusion anymore. But, I guess it wasn’t right because the second time it would happen, I don’t know what to do.