Evening guys got a issue with my Vectra b. It is a 1999 car and has abs light permanently on. on little to no pedal even after pressure bleeding several times. It has several codes shown up on diagnostics which are c0040 -(4)front right wheel speed sensor circuit open or short circuit. not present c0121 -(2) valve realy circuit malfunction - not present c0232 -(1) brake system telltaile voltage high or open circuit- Present Any ideas it is a Kelsey unit. I did have abs working for last mot and after a while since then no abs breaks groaned when pressed hard.