How do you reset the check engine light on a 1991 Honda Accord SE?

With my '91 EX, you must either take the car to the dealer and have them reset it after they fix the problem, or fix the problem yourself and just give it a few days to reset itself. To turn it off without fixing the car, disconnect the negative battery terminal for thirty seconds with the car off and reconnect it again. Your light will probably come back if you choose this method though.