It depends what you were placed on probation for July 2008? Was it alcohol-related? What are the terms & conditions of your probation? This is a very serious offense. A public defender may be assigned to you if you qualify; if you do not, you must seek a private attorney to defend you. Good luck.
The court will provide one for you if you meet their financial standards for income.
As to the consequences, depends on the underlying offense that you are on probation for. Factors include, was their a suspended sentence, was it alcohol related, was it in the same county, etc. Also, what are the facts of the new violation, was an accident involved, etc.
Good luck with your situation.
I am not license to practice in California.
If you cannot afford an attorney and you meet income requirements, a publice defender will be assigned to you.
Talk with your court appointed attorney when see them.