Rear M1 car B1 door not proven closed. TC opened and closed 4 times to no avail. TIMs show obstacle detected. Staff(TAP) on board the train and found no abonorm ailities. TC opened and closed again and the fault cleared. ~~~~~ #1632 fault code 933-saloon door B1 close operation time out (CLE) ER & fault trace download in PTU006. Before adjustment: door mating: Top=64.6, Mid=64.4, Bottom=63. Push/Pull: LHS: 8kg RHS: 7.4kg. DCS to plate=14.8mm. Check no FOD on the guide rail. Checked by Asruddin/Zulq. 10/11/20. #1632-B1 door remove clean J rail and guide done. Found RHS 1 big, 2 small roller and LHS 1 small roller rubber give way against the roller bearing. EMM decision to put marking to above mention roller and further monitoring in M/L. Door install and check push/pull and mating strip within criteria. DCS to plate check 14.5mm. DLS check ok. Door cycle 50x ok. Done by Sanip/Faddzal/Firdaus. 11/11/20.