TC reported TIMS brake page showed "fault" under "BCU Unit Healthy" for car 3543. Train performance was ok. ~~~~~ 3543 TC reported TIMS brake page showed "fault" under "BCU Unit Healthy". Train performance was ok.     #3543-FC323 and 327 multiple time not clear. Check found Tacho Gen 4 (6.05mohm)Check tacho gen cable continuity ok. Replace tacho gen 4 and check ok. Tacho Gen 4:- Old: 1024114 New: 86055 Not: 2416613 raise. Done by Haslan/Anan. 09/09/22