BlazerLT you should prof read your stuff before you hit send and no the muti-function switch does not control your brake lights, yes it controls several things but not your brake lights. Pull the switch off and see if you still have brake lights and you will be surprised.

 

Actually, it is you that should check your facts, R134A. The multifunction switch does indeed affect the brake lights. All but the third brake light that is. You may want to take your own advice.

To the original question. If the third brake light works, but the lower ones do not, it points to a faulty multifunction switch. There is a LOT of information on the forum about this. If you mess with your hazard switch and it allows the brake lights to work, you may be able to get by with just a simple/cheap hazard light replacement.

 

thank you swartlkk

 

Easier to remove the bottom trim panel to replace the switch. It's self adjusting. You'll see what I mean.

 

The multifunction switch is wrapped around your control panel. Is is also called the turn signal switch, and it also controls your hazards. Good luck finding a used one. I replaced mine from Chevy ($420) and STILL have no brake lights.

 

I was having the same problem after I installed a remote starter on my 98' Blazer. Thought the brake light switch was bad, but did some pokin around and found a wire had wiggled loose from the harness on the swith. White wire on the left (12v when brakes are applied) was loose. I (and the guy that tried to do your remote start) probably loosened it while tapping it for the remote start kill wire. Something to check if your still having a problem.

 

i came across a recall that was released in 2008 regarding the tail and brake lights not working.. i think it had to do with the hazard light switch but i forget what years are affected. im going to check my vin in the next couple weeks and find out if my 02 is in the recall.