Brake lights on 2000 Cadillac Escalade

Brake lights quit working turn signals are acting like bulbs are blown but when I replaced the bulbs they still don't work. Need some info on how to troubleshoot this problem

1 answer
Really need to scan your system. Believe it or not, the Body Computer is involved with the operation of the turn signals and Brake Lights. This week I had to replace a Body Control Computer to fix a similar problem. http://repairpal.com/directory?address=35216&car_brand_names=Cadillac