the brake lights are mechanically controlled by a small switch on the lower firewall next to the pedal shaft, likely that's the problem, might be the arm that activates it bent or broke, or the switch itself is defective

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot