Mac851

Where is the plug in the 2001 GS 300 used to reset the airbag light? Am having trouble locating the tc and ab of the diagnostics plug I have been reading about. Is it the same as the plug used for the check engine light located under the dash on the drivers side? If so, are these two ports suppose to be clearly marked as to which one is which? I can't find any plugs that disignate tc or ab. Looked under the hood and under the dash on both sides.