Keeping in mind that the brakes are the most important part of the car, it is wise to have a professional have his hands and eyes on it for a true and proper diagnosis. But since I cannot be there right now, I will tell you that a 1998 (or any year model) should not have the pedal adjusted. If your pedal is not where it should be this is a symptom of a problem at the wheels or under the hood. Be careful about taking your car to a shop that specializes in brakes only, as most of them will sell you a complete brake system even if all you need is pads and rotors, because they are in business to make money and let the buyer beware. I have seen way too many people get scared into spending $500 or more on there brakes to get a bogus warranty when that could have gotten buy with a $150 brake job because they didn't know! Arm yourself with information by purchasing and reading the repair manual for your car!
At the top of the brake pedal assembly
Probably the switch on the brake pedal,
hanging under the dash, near the brake pedal
It might be the brake pedal switch
You probably have air in the brake hydraulic line. Bleed the air out of the brake lines.
Usually at the base of the brake pedal.
The brake light switch located at the pedal is most likely broken or stuck Did you check the bulb and replace it if required?
try to check down the brake pedal
Probably bad or mis-adjusted stop light switch Should be located on top area of brake pedal
The brake booster on a 1990 Honda Civic is held in place with several mounting bolts and the brake master cylinder. Remove all the mounting bolts, vacuum lines and the master cylinder. Go underneath the dash and remove the plunger from the brake pedal. The booster will fall out. Replace the unit.
You need to adjust your brake light switch. It should be located on the brake pedal. Unplug the switch and loosen the nuts to adjust the button closer to the brake pedal.
you do not adjust the brake lights check the bulbs or check switch top of brake pedal.