I take it the SRS light is on but no codes can be pulled....
I've had a few of thses....I could turn the light off but it would come back on with no codes stored...
I was a bad SRS unit..... I've had a couple of these Civic's with this problem.
Before I replaced the unit I spoke with my Honda buddy at the dealer....he said they get a few of them with this problem...
Good luck...
Mark...