Two of three brake lights not working

With the car jacked up and on safety stands, follow the wiring harness from the taillights to the front of the car. The wire is probably pinched, burned or shorted somewhere along the way. Did you have any work done on the bottom chassis area recently? Does sound like a pinched wire.

Hi, I believe this may be a fuse problem. The owners manual will show you the fuse box or boxes locations and what each fuse powers. If it is a blown fuse it may be that something in the trunk pinched the wire and shorted it. The wires as they run from the body to the trunk lid is a good place to check for a pinched wire or short. The unlock solenoid may be the culprit if it shorted out, just a possibility. If a fuse is blown, replace it then check to see if the brake light works. If so then try opening the trunk electronically, if the fuse blows again then you know that circuit is the problem. Good Luck, Jim

I had this problem also, does your third brake light come on? Also is your trunk light functional? If not there is a rubber boot from the car to the trunk lid, that those wires
run through make sure that the wires arent broken in there. That rubber boot on
my 06' Charger over time curled towards the window and got pinched and severed
all the wires. I soldered them and replaced the blown fuses in the trunk fuse box.
Problem solved.

then it's probably a ground wire that isen't atached

Before you just replace the fuse, if it's blown there is a reason. Also if it's blown you probably don't have dashboard lights or running lights on the side of the car. Note this is for tail lights (parking lights) not brake lights. The fuse is 15 A on driver's side wall next to brake pedal. Should be top left as you look at it, of course looking at it is a challenge unless you are very limber. If your dash board lights work but you have no tail lights then the fuse is ok and you Lamp Failure Sensor is burned up. Probably the little nichrome wire in it in the tail light circuit. This is probably caused by a dead short in the harness to the trunk lid. It can get pinched at the hinge it you load something in the trunk and push it out of place. Check that harness for damage before you waste money on a new sensor. They are hard to come by and if you have a short you'll just burn up a new one. I just did this this weekend and had two frayed wires inside the protective sheath. I clipped them, crimped them back together and covered with shrink tubing, repackaged and made sure it didn't get near the hinge. All better now.

Check around in that trunk for loose wires. Especially a grounding wire at the taillights. Sometimes in our hurry to shove stuff in the trunk it's possible to disconnect, or cut a wire... If you've got the 'cyclops" light working on the hatch, then there's power back there, just look around and I'm sure you locate a loose or damaged wire... trace them back from the taillights and look close for cuts, frays, damage, loose connection..

Check the wiring in the trunk. Maybe some wires got pulled loose or pinched, or a relay might be out. Good luck!

Check the plug in the socket. There are 2 contacts in there one may be bad or shorting out.

Lets start with is this a sedan/coupe or wagon?, does the car have any body damage? Fuse 32 in the underhood fuse box is for the license, parking, sidemarker, and taillights. (The turnsignals and brake lights are on a seperate circuit). There is a short to ground somewhere in the circuit. To narrow it down , if the car was damaged somewhere, look in that area. Aside from that you need to isolate the short by disconnecting connectors in the circuit. If it is a sedan, I have seen damaged wiring in the trunk on the drivers side up where the trunk hindge is. It gets pinched by the trunk hindge. It would be the red/black wire.
Let me know if that helps, Hond Al

2004 Rx8 kept blowing 15amp brake light fuse. Solution: wire going to rear lights was worn and frayed where it feeds through the left trunk lip on left side of trunk. This can be seen when you open the trunk lid. The wire routes by the trunk lid hinge. If the support connectors come loose, the wires are crunched by the hinge or lid. Re-splice, insulate, zip-tie, replace fuse and replace any blown bulbs.