2001 jeep grand cherokee limited brake lights wont work. Replaced fuse and bulb. What is the problem?

Hi, the problem you are having is going to be one of 2 things now the most likely cause is going to be the brake light switch, to locate this you need to get on your hands and knees and have a really close up look of the brake pedal, then if you follow the brake pedal to where it goes through the bulk head into the engine you should then see the switch its located at the back of the brake pedal at the top, now you can take the switch off and press the button with your finger to test the brake lights if they work fit the switch and try and move it so the switch is pressed with the brake pedal you can sometimes pack the brake pedal out with tape at the part that presses the brake light switch. if the switch dont work when you press it by hand then the switch needs replacing.

the second problem you could have is if water or damp has got into the back lights you can sometimes find that the circuit board corrodes that the bulbs fit into so all you need to do is remove the back lights and remove any corrosion and this should then get the lights working