TIMS showed train doors at the front DTcar 'B2' door was not proven closed.TC opened and closed t rain doors a few times but to no avail. Staff (CBR) checked and confirmed that front DT car 'B2' door was unable to clos ERS-10No record of this incident was reported in RIMS. Similar to RIRSD0168738. ~~~~~ #3546 Found B2 saloon door having rubbing sound. Remove door leaves 1 pc of shim at left and right door. Check door guide rail no foreigh object (10/20mm check ok). Door operation open & close ok. Door static test B2 door open timing-3 sec & closing 3.9sec. Done by Haslan/Zulq. 20/08/20. #3546-B2 door left side door leaf both was rubbing against the carbody cause the door slow in closing. Add 3 mm shims and function test door closing/open ok. 10/20mm door gauge test pass. Done by Joshua/Koh/Sanip. 20/08/20.