I've got an 2002 Royale XL2 with ABS and the ABS idiot light, red warning light in the front electrical bay as well as the diagnostic display on the dash saying there is a ABS fault. Faults reads "retarter shorted to 12V". The repair shop says to make the situation to go away, I must replace the ABS ECU in the electrical bay at a cost of $1200. Anyone have experience with this system?

Gary Swaim
2002 Royale