I have a 2006 Honda Accord Ex Coupe V6 and the tail lights barely illuminates when then brake is pressed. When the headlights are and I press the brake pedal it gets no brighter either.

My 3rd brake light seems to work alright though.

Any ideas on my problem?

 

Check the ground for the tail light. This is the ground for the sedan on the left side of the trunk area; but, look for a similar ground for your coupe.

 

Check that the ground is clean and tight. If your car was recently ata body shop they might have painted over it. If so clean the area with sandpaper and reattach the ground.

 

Thanks guys. I will check that out in the morning.