All right I am having a problem with one of my taillights.

When I type in my unlock code in my keypad all the lights turn on (headlights, 3rd brake, tails, insides).
Both taillights light up.

But when I manually press my brake, the left tailight doesnt light up, just the right does. So i know its not a problem with the bulb.

Does any one know whats up?

 

Where should i check first?

 

Are you sure the brake lamps are the ones illuminated on the back ?
Should only be the parking lamps, and the cargo lamps ( from the interior lamps ).

I am not sure you you know it is not a bulb, as it sounds like one of the bulbs does not have a ground.

Check both sockets for a good ground in the bulb connector is a good starting point. Next replace both back S/T/T bulbs with new ones.

 

Well after driving at night with the lights on, both tailights are lit while im cruising.

but when i brake only one side turns extra bright, if you follow me lol

 

how many bulbs are there in the taillight?