Brake lights won’t work

Hello, do you have a trailer wiring harness attached? If so, it's a place to look to see if there is a wiring concern. Additionally, have you checked the wiring at the tail light sockets? If there is no power at the sockets, you should trace back to find out where the power supply stops. No, I would not change a "tail light circuit board" - as it is not likely the root of your concern. www.repairpal.com/repair-shops