If a car you are working on is experiencing a symptom where the brake lights won’t turn off, one possible issue could be the brake switch. It is located on the brake pedal. Inspect it for missing parts, such as the nipple not sitting properly in the groove or is completely missing.
If it is not seated properly, you’ll notice a depressed switch which the brake pedal would normally press. Fix that part. I repaired it using a bolt with two nuts, one on either side of the part of the metal used to mount the nipple item.
Information for this post was gathered from a honda-tech.com post. I’m writing this to archive the data in case that forums data is lost, as years-old posts tend to become. Hope this helps somebody.