The TS1522 is a Solid State Accessory Controller (SSAC) manufactured by Stoneridge Electronics. It is designed for controlling and monitoring vehicle accessories, including lights and horns. The TS1522 can manage up to four accessories and offers a variety of functions, including automatic control, low voltage protection, over-ride, short-circuit protection, and alarm output. It is also fully compatible with CANbus protocols for communication with other systems in the vehicle.