Ohio Rev. Code Ann. § 4511.132
(A) The driver of a vehicle, streetcar, or trackless trolley who approaches an intersection where traffic is controlled by traffic control signals shall do all of the following, if the signal facing the driver exhibits no colored lights or colored lighted arrows, exhibits a combination of such lights or arrows that fails to clearly indicate the assignment of right-of-way, or the signals are otherwise malfunctioning, including the failure of a vehicle detector to detect the vehicle: