Are you sure it was 23153(a) and not 23152(a)? The former is a DUI plus bodily injury while the latter is a standard DUI. Either way, you violated your probation by not conforming to its terms and you could be sentenced up to the maximum allowed by statute. If you come to the US again you will either be sent back or arrested at the port of entry. If you need help with this matter speak to your original attorney or call me at 415-753-1889.
The issues that you present require the assistance of an immigration attorney as well a DUI attorney to assist you court. In order to return to the U. S. without concern about the possibility of being arrested, you will need to clear the probation violation in Santa Clara County. Your original attorney can assist you with this or, you can hire someone else to assist you. You should have an immigration attorney speak with you about how this will affect your potential re-entry to the United States.