Most low end scan tools will not read the SRS airbag codes. The Auto stores scanners usually don't...If you still havent found it, take it to a shop that will scan it for free, most scan tools can read airbag codes.
Rather than just reset the code, there is a method to jumper the OBD connector to blink out the code. That is, if you can't find a shop that can read the code. Honda dealer will read it, but will charge a diagnostic fee to do so. Once you know the code- then reset it. As jackrabbit000 says, this can be a challenge! I had an intermittent SRS code on my 2nd gen. First cleared it and later it came back. Read the code, which indicated problem with the driver seatbelt latch. Since this issue was covered by my seatbelt warranty, the dealer fixed it for free.