A light control system may include a signal coder (e.g., a flasher module), one or more motor vehicle light sources, and a signal decoder. The light control system may be a part of a motor vehicle taillight system. The signal coder may provide a selected signal. The selected signal may be a voltage signal having a modified portion when the signal coder is activated by a turn signal switch. The selected signal may be a substantially non-modified voltage signal when the signal coder is activated by a brake signal switch. The signal decoder may be coupled to the signal coder. The signal decoder may assess the selected signal from the signal coder to determine a selected lighting output of the motor vehicle light sources. The motor vehicle light sources may be coupled to the signal decoder. The motor vehicle light sources may provide the selected lighting output.