1997 honda civic ex manual small fender bender broke headlight but deployed bags on 1997 Honda Civic

PCM is good, scantool powers but no link to pcm, 12vdc and ground is good on pcm, can srs stop pcm? is there an immobilizer? how do i troublesht obd ckt. service manual is poor. thx I&C experience

Asked by for the 1997 Honda Civic