I have a strange problem with my tail lights. When I start my car and turn on my headlights the tail lights work but as soon as I rev the motor up the tail lights stop working. All my lights work, including brake lights. I've checked all fuses but I can't find the problem. Is there a relay somewhere in the car that needs replacing?

 

Welcome to the forum, Do you access to a wiring diagram for your car, start checking your ground terminals. If you go to Autozone.com, they should have the wire diagram for your car and may help you locate a poor ground. The fuse and relay would be a work or no work on the lights.