just finished swapping brakes/suspension/engine/dash/ out of a gsr into my hatch and now my brake lights are on constantly the only wires i messed with that could of had an effect are the three main harnesses on the dash harness(green Blue Gray) is anything in there related to the brake light. the steering column is also swapped but the civic wires went together perfectly

 

You need to adjust the brake pedal, 17 mm bolt where the master cylindar comes in contact with the brake, see if that works...

 

thank you will give it a shot