Brake Sensor problems of the 2006 Toyota Yaris

I purchased this car in December 2006 in puerto rico. I needed a car to visit my father who currently lives there. During 2007 through 2012, I visted him approximately five times and drove the car. In 2013, I decided to bring the car to virginia, us. I bought the 2006 Yaris Toyota to the us with approximately 6k miles in March 2013. In may 2013, the sensor controling the air bags turned on and I it was unable to pass state inspection. The week after, while I was driving to work, the car lost all of the brakes functionality. I had to pull the emergency brakes in this car or else have an accident. Overall between the sensor and new brakes it is costing over $1300. In two months of driving the car from fredericksburg virginia to springfield virginia, the mileage used was about 4k extra. In essence; the car with only 10k, and is at home while I think of what to do with this car. The car is paid off and a car on only 10k miles should not have so many issues. Toyota said it cannot repair the car because it is a 2006 model, however the mileage on the car is only 10k.