Hi i really need some help. My Wife's Fiesta has developed a fault with several lights coming on. ABS, Engine and the Speedo has stopped working. A friend ran a diagnostic test which showed 7 error codes one of which was the rear sensors not sending info. Ford have quoted a £1000 to repair but i don't have that kind of cash available. I have read that there could be a number of different reasons why this has happened, can anybody be of any assistance?

Regards

Robert