If it was done properly the footing would be deep in that area, but if it started out as a garage the may not be any foundation there.
Neil , you been a HUGE help , but I have to say , Im kinda sick of you being right. So it dint take long to find out , the block is on a 4" pad which is on another 4" pad , so it looks to me anyway. I hate to get rid of the "walk out" , even if I did would back filling be sufficient? I'd guess no matter what this needs a footer? What are the odds the rest of the basement has a footer?
And how did you know this?