Volvo: lights are on..., warning lights, possible solution

Question
SRS service required, Check engine, ABS(sometimes with STC) lights are on for my volvo 99 s-80. Can you show my some insights and possible solution? Does it really mean the airbag is not going to deploy if this light is on? Thanks.

Answer
i'm not that into the newer volvos, sorry, i know that the 80's volvos have all the warning lights come on when the alternator is not charging properly, i don't know if this is the case with the newer volvos, you should check the owners manual because mine talks about this