Hi any one help ive got my brake light perm on and clock on dash showing lines and picture of engine light perm on dash,my machanic said its the ABS moduale and first sd £900 for part now saying £520 for part without labour? put machine on and showed up as fault code u0121 ABS seems a big diff when i querird the price with him can any one shed any light as to my problem and price range i should be looking at? Thanks for any help much appreciated