98 2door 4wd
Bought and installed a new multi-function turn signal switch and also the relay under the glove box. Multi switch stopped the excess ticking from the turn signal, but STILL no brake lights. I have hazards, parking, and turn signals along with 3rd brake light, but no lower brake lights. HELP!!!

 

Look at the lower right of this diagram were the ground for the brake lights are.

http://www.auto-wiring-diagram.com/w...let-blazer.jpg

Click on it. It will enlarge.

 

I'll check out that ground and see if that is the issue. Sure hope it's that simple!

 

Swap the bulbs top to bottom on both sides: If the tops don't work, 2 bad bulbs. If the bottoms still don't work, bad ground or bad sockets.