2518 - BCU Fault. (Train Prep) ~~~~~ 2518 BCU Fault. (Train Prep)  2518 ER D/L & found FC 330/331/312. Replaced #2518 ACU. Brake pressure test - OK. Limited movement - OK. #2518 ACU S/N : OLD : 1032-043 NEW : 1240-097  Selvan/Lee PT/Alcus 44113