Train doors at car rear M2 were not proven closed. TC recycled train doors three times- ok. Fault di d not recur at subsequent stations. Train doors at car rear M2 were not proven closed. TC recycled train doors three tim ~~~~~ 2603 Train doors were not proven closed. TC recycled train doors three times- ok. Fault did not recur at subsequent stations. Train doors at rear M2 were not proven closed. OE:Depot check.  2603 FC shows B4 door CLE 3x. ER confirmed door not proven closed, DIR not energised when door closed. Fault trace showed door obstruction when closing at 8mm gap. Found roller emitting squeaking noise & wobbling during cyclic test. Checked/found 2 saloon door rollers damaged - replaced. Function test door operation - OK.  Sugu/Shafie/Kamarul/Lee PT 44811