Absent severe aggravating circumstances (DUI; evidence of gross recklessness and injury to another; etc.), you should not face jail time for running a red light and causing an accident. Traffic vioalations due not result in jail time; there must be enough to elevate to a misdemeanor or felony for that to happen. So from the state's perspective, points and a fine are most likely, though it can't be ruled out that you might face a license suspension, especially if you have other driving issues on your record.You could also be sued in civil court by the other driver and/or his insurer, to recover the cost of repairing the car, any medical costs, any lost wages, and also any pain and suffering, should injuries later manifest.