I have 2004 prius, 100,400 miles. No problems ever and all of a sudden, driving as usual, vsc, brake, !, and alarm buzzer on the entire time car is running or door opens. Brake seems harder to stop now. Right rear wheel is grinding when brakes are applied. jerks a bit at slow stops. Went to dealer, gave me a repair order for a skid control ecu $1755.00 not in stock, need to order one, may take a week? addional referral charge of 180.00 Found used one online for $150 with warranty Should i purchase used? Do i need to reprogram it or is it a plug and play? Any advice is much appreciated. Also, dealer mentioned that i have a recall for the electric water pump, which i decide to put off until the brakes are fixed first. Daily driver, i'm driving sloooow right now.