TIMS showed Rear M1 car A2 train door was not proven closed. TC opened and closed thrice to clear fa ult. ~~~~~ 1515 TIMS showed A2 train door was not proven closed. TC opened and closed thrice to clear fault.  1515 A2 door performed the following checks : FOD found: N Weather strip ok: Y Clean J rail & guide rail: Y 10/20mm gauge test pass: Y Push/pull gauge test pass: Y Manifold & actuator leaking: N Door cyclic test 20x, DIR extinguish ok: Y TIMS door static timing test pass: Y Door magnet valve no residue voltage when closed: Y Postulate FOD dislodged after TC cycled doors.  Chan SW/Daniel/Redzwan 45233 To recheck 1515 A2 door as requested by OE.  1515 A2 door replaced actuator & manifold. Checked door rollers & found LHS inner rollerpitted. Replaced door roller & cleaned J-rail/guide rail. Weather strip condition, door gauge (10/20mm), door cyclic test, door open/close timing checked - OK. No DIR lit up & all doors proven closed. No FOD was found.  Sarma/Alan/Lee PT/Anand/Kamarul/Shafie 45233