My brake lights do not work on my 93 Acura Legend. I've checked all fuses and the brake light switch seems to be working fine.

Faulty contact maybe oxidaized or rusty.....Can fix it for $6.00 or less....

its under the dash near the brake pedal

Horn may be bad or switch on the steering wheel. The way to check either would be with a 12V light or meter.

Most brake light circuits involve the brake light switch on the brake pedal and the turn signal switch. You may need to get a wiring diagram to trace it.

DiD you say that the brake light is ON, if so the brake switch on the servo master is faulty.
you will have to check for a short in the pressure switch .

There is a switch there activated by the brake pedal to activate the brake lights but this is most likely a short causing the bulb to burn out or you had the wrong type bulb installed and it burned out again. replace the bulb again and this time check the contacts for any corrosion build up indicating possible water damage. If everything is clean, install a bulb making sure you have the correct bulb type and size and see how long that last.

is this a manual or automatic

check wiring for a short

Hi. Anything over about 300 milliamps is generally to high. illumi sounds like an abbreviation of illumination. with the fuse out try all your lighting, interior lights, dash lights ect. and see what doesn't work. a common problem is boot lights sticking on as they often cant be seen with the boot closed.

this means you have brake lights out.