Recently did a swap in a 92-95 Civic hatch.. after hooking up the battery, just the 2 outer brake lights remain on all the time. So when I apply the brakes, nothing changes.

Thoughts / ideas?

TIA.

 

Possibly coincidence?

Look at #23 in this diagram:



It is a small plastic insert that pushes against the button on your brake light switch. Over time the plastic crumbles and it falls out, making the brake light switch stay open all the time, which keeps the brake lights on.

Look under your dash where the brake light switch button itself goes through the hole in the brake pedal, and see if the plastic insert is still in the hole in the pedal assembly. Also look for crumbled plastic (usually original ones are blue; replacements are white) in the floorboard area too. That'll be the smoking gun for a busted brake light switch grommet.

If this is your problem then it had nothing to do with your swap.

If your plastic piece is still intact then I'm at a loss. you might have a poor ground/missing ground somewhere in the engine compartment.