Abs light staying on Wheel speed sensor fault codes No communication with ABS module Fault code 15 - Return Pump failure Fault code 30 - LH rear wheel speed sensor fault Fault code 31 - RH rear wheel speed sensor fault Fault code 32 - RH front wheel speed sensor fault Fault code 33 - LH front wheel speed sensor fault Fault code 81 - Pressure sensor open circuit Fault code 115 - Pressure sensor signal interupted Other