air bag light on on 2005 Hyundai Elantra

Air bag light is constantly on. Is there a recall, can I repair myself. What is cost?

Asked by for the 2005 Hyundai Elantra
Testing is necessary to find out what code is in memory, so that it can be traced down to the fault. Could be many causes.

One fairly common item on a Hyundai is that wiring harnesses under the seats get dislodged.

But, you must perform the test prior to anything else.
Could the seat itself be the problem? Like if I replaced that seat do you think that could work?