TC reported TIMS showed obstacle detected at car 1604 'B3' door. Fault self-cleared and did not recu r at subsequent stations. Staff(TAM) checked and confirmed c ar 1604 'B3' door did not opened. Staff isolated in closed p ~~~~~ 1604 TC reported TIMS showed obstacle detected at B3 door. Fault self-cleared and did not recur at subsequent stations. Staff(TAM) confirmed 1604 'B3' door did not opened.  1604 No FC found on B3 door. #1604 B3 door LHS door leaf was stiff & found LHS outer roller delaminated - replaced. Checked J-rail, door guide, door lock s/w & Weather strip - OK.  Chan SW/Aliff/Redzwan 45223