Wut sup guys, I have an 03 G and im having problems with my top rear brake light. My top brake light sometimes work and sometimes it partially works - means when i step on the brakes sometimes it will fully light up and sometimes its like faded or not bright. Is it maybe wiring?

I wanted to open it but dont have the time yet coz lack of time to do it. been working 16-18hrs a day so dont have the time to open it and check it.

any help would be great.

Thanx,