Nishevran

Hi, first time on the forums and welcome some help. I am restoring a 986 after a crash and have an fault 038 - side airbag. I replaced the main airbag control module unit under the radio assembly of the front dash (that fixed the passenger front airbag that was replaced).I have tried clearing the fault, but it returns after the vehicle is restarted How do I solve for the side airbag fault? Is there a control module somewhere? Could this be the side airbag sensor? I'll be grateful for the help. Thanks