How do you reset a service engine light on a 1997 Nissan Maxima?

First you have to locate ECM which is on the driver side just below the steering wheel and just right of gas pedal. You will be able to see ECM after removing a plastic cover. After that you will see a nut in that ECM, which needs to be turned clockwise and then anticlockwise. This is to be repeated three to four times with a span of 15-20 seconds. Next time you will start your car the annoying "Check Engine Light" should go away.