Train EB with ATSS shows obstructed motion detected. TC reset EB and proceed in Auto mode. Train EB again. TC reset EB and proceed in ATPM mode. Fault did not r ecurred for subsequent stations ~~~~~ 3538 EB with ATSS shows obstructed motion detected. TC reset EB and proceed in Auto mode. Train EB again. TC reset EB and proceed in ATPM mode. Fault did not recurred for subsequent stations.  537/538 all saloon doors & cab doors checked/found no abnormalities. No FC found on TIMS. Found obstruct motion message at 20:43:27 on TMD screen. From ER, found delay between brake release & train moving off at around the same timing.    No fault found with brakes. OPS 20 raised to follow-up.  Jonathan Koh 45051 To futher follow up.  537/538, at fault timing, from LDC PEC 1&2 & MLI 1,2 &3 command given, from ER, no P1-P4 BRER energised. Inject voltage to check 'NO' contacts. Checked #3538 MDR1,MDR2,SNR1,SNR2,TNR1,TNR2,WFR2,WFR2,SR1,BRER & BRTR coils & contacts measured - OK. Function test timer relay - OK. From ER & LDC, BRER energised 2 seconds after PEC given. Preventively, c/o BRER & BRTR. Limited movement/depot shunting - OK. Notif 2486144 raised to check on PECR.  Lee JC 45051