An auxiliary lighting energy interruption system for use with snow plows and like front-mounted vehicle accessories is disclosed which facilitates the interconnection of such auxiliary lighting energy interruption systems to the lighting system of a vehicle upon which the vehicle accessory is mounted to provide power to and to control the auxiliary lights with the lighting system of the vehicle. The independent lighting energy interruption system provides first and second harness portions for respective installation on the vehicle and the vehicle accessory, with the first harness portion having a first configuration when it is not connected to the second harness portion and a second configuration when it is connected to the second harness portion. The first configuration allow the headlights on the vehicle to operate, while the second configuration allows only the headlights on the vehicle accessory to operate.