Thanks to all. It is the module for seatbelt and maybe control for other things. I spent about 5 days tracking wires and checking continuity and finally found a wire in the harness that would go directly to starter relay and by pass the seatbelt relay. Problem seems to be solved. time will tell. The trouble I was having, was that the starter would not (immediately) energize thru the ignition switch when battery had been disconnected for a day or more. It would have to "warm up" for a few minutes before starter would energize. This is currently a drag race only car with a battery disconnect switch that I use.