emergency brake light stays on
The light on the dash that says the emergency brake light is on could have burned out if it does not light up when the emergency brake is actually on. In some vehicles, this light will not light up until the car is put into gear to warn the driver that the emergency brake is still on.
the 1989 Honda accord lxi has a brake lamp light on the dashboard, if the brake lamp light is on, this means you have a brake/tail light out or disconnected
my brake light stay on but emergency brake is unhooked
Problem with the ABS, take it to a pro.
Check the brake fluid level, as on many vehicles the "emergency brake" (in the UK, Hand-brake) warning light also acts as a warning light for low brake-fluid.
If the brake fluid level in the brake master cylinder is low ( in your engine compartment ) that will also turn on your emergency brake light just as if the emergency brake was applied
Bent brake light switch bracket above the brake pedal.
Bad switch on the emergency brake handle.
It could be something as simple as a faulty or out of adjustment emergency brake switch. If that's not it, it could be the ABS. Often when the ABS fails the computer will turn on the emergency brake light.
You can disconnect your emergency brake light removing the emergency brake cable. The emergency brake cable can be removed by turning the swivel nuts to the left, on each end of the cable.
If the light stays on when the emergency brake is not engaged, this indicates the brakes are getting low and need to be replaced.