Brake Light Issue

[4bywhut]

3 of 4 Brake lights don't work on my 2007 yukon but blinkers and hazards do is it a fuse or brake switch?

 

[zach2011]

Have you tried replacing that single bulb?

 

[4bywhut]

zach2011,
All bulbs check out but of 4 sockets only 1 is getting power and the rest are dead. I checked fuses and rear harness. I am only a newby to this sight not to to automobiles.
I am just stumped on this electrical prob.

 

[zach2011]

Oops, read that wrong. Hmm. Maybe you need new harnesses. If I still had mine from our 08 Denali I'd sell them to you but they're gone. It sounds like it's the harness though.