2013 Toyota Sienna - Clock Spring Repair

Hi, The SRS light came on. Self check and Toyota $125 check later, Toyota quotes $1100 + tax to change clock spring and sensor assembly. I watched a couple of videos explaining the clockspring - can’t understand what is the sensor in this and why would a coiled up spring part cost so much. Anyone with experience with this issue. 2013 SE Sienna

The spiral cable/clockspring for this vehicle includes the steering angle sensor and is expensive, MSRP is $676 plus about 2 hours of labor. Ask your service writer to explain the prices, parts/labor and if it is possible to get a 10% discount.