How to reset or disable anti-theft system on a 1998 Honda civic?

There's no single "reset" button for a 1998 Honda Civic's anti-theft system. Honda's anti-theft systems in that era are integrated into the car's computer system and work in several ways, including immobilizers that prevent the engine from starting if the correct key isn't used. There's no way to disable them without potentially causing serious issues or even rendering the car unusable.

If you're having trouble with your 1998 Honda Civic's anti-theft system, here's what you should do instead of trying to disable it:

* Check your keys: This is the most common cause of anti-theft activation. Make sure you're using the correct key, and that the key's battery (if it's a remote key) is working. Try all your keys if you have more than one.

* Check the battery: A weak battery can sometimes trigger the anti-theft system. Make sure your car battery is fully charged. If it's weak or dead, jump-starting it might resolve the issue.

* Check for aftermarket alarms: If you have any aftermarket anti-theft systems installed, they might be the source of the problem. Consult the system's documentation or contact a professional installer.

* Professional assistance: If none of the above work, take your car to a reputable Honda dealership or a qualified mechanic. They have diagnostic tools that can determine if there's a problem with the car's anti-theft system, and they can troubleshoot it properly. Attempting to bypass or disable the system yourself can damage your car's electrical system or even make it impossible to start.

Attempting to disable or bypass the factory anti-theft system is strongly discouraged. It could void your insurance, make your car vulnerable to theft, and damage the vehicle's electronics. Always seek professional help if you have trouble with your car's security systems.