Brake Pad Wear Sensor; Sensor; Sensors. Part Type: Disc Brake Pad Wear Sensor. Brake Pad Wear Sensor. Brk Pad Wear Sensor. Functions: Brake Pad Wear Sensor. Mounting Location: Brake Caliper. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.