TC reported TIMS indicated Rear M1 car B3 door obstacle detected after 4 seconds when train door wasopened. Staff (MRB) onboard train observed Rear M1 car B3 d oor, there was a small gap after door closed, however normal ~~~~~ TC reported TIMS indicated Rear M1-1612 car B3 door obstacle detected after 4 seconds when train door was opened. Staff (MRB) onboard train observed Rear M1-1612 car B3 door, there was a small gap after door closed,however normal.  Check FC 1612 FC966/960. Confirm 1612 B3 LHS door wobble. Replace B3 door Roller LHS and Functiont est ok, Static test ok. Matting:63.5, DCS to plate:14.1, DLS red line present, DLS lock secure, DLD rubber cushion present, Push/pull within criteria Done by Rosli/Rizman 45180