has anybody have a dimming problem with your brake lights? i changed the light bulbs and still the same? could it be a ground? where are they?

 

Thank you in advance 

id say grubby bulb holder or bad earth

 

pull the bulb holder and check for white powdery residue on the contacts where the bulb fits or on the terminals where the wiring fits on , i used a tiny wire wheel in a dremel to clean mine , then check where the brown wire goes to and clean the ring terminal on the end of that 

i removed and cleaned same thing. passenger is bright and drivers is dim! huh any other suggestions

found the problem, the bulb was weak not connection.