Why do your brake lights not work on a 2001 Dodge Durango?

Answer 1

There are a number of things to check:

If all brake lights are out, it is unlikely that all the bulbs would blow at same time but it is a good idea to check them.

If bulbs are fine, check the under the hood fuses (black box next to the battery). The 5th square fuse closest to the battery should be a 30A. This fuse supplies the power to the brake light switch. It's hard to tell whether this type of fuse is blown by looking at it so test it. You can get a cheap tester in packages of bus fuses.

If fuse is working then you need to test the brake light switch underneath the dash. If you follow the brake pedal up, you will see a wiring harness attached to the top. The pink wire with dk blue tracer is the one that supplies the power. Use a test light, if you push the probe into the harness beside the wire it should light up. If it does, test the white wire next to it, when you press on the brake pedal with the test light in the harness the test light should light up.

If this is your case you need to replace the brake light switch.

The part will run you about $15-$20 depending on where you get it.