TIMS showed front M1 A-2 door operationtime out. SM(ORC) checked and confirmed train door at front M1 A-2 did not open. SM assisted to isolate Front M1 A-2 andsticker was put up. TIMS showed front M1 A-2 door operation  ~~~~~ 1656 TIMS showed A2 door operation time-out. SM(ORC) checked and confirmed front M1 A2 door did not open. SM assisted to isolate defective door. Sticker was put up by staff (DBG). Train ended service at JUR and spare train launched from UPD as replacement.  1656 FC 042 (Saloon door A2 open operation timeout) FOD found: N Weather strip condition ok: Y Checked roller condition ok: N, A2 RHS outer roller delam & LHS                               outer roller pitted Clean J-rail & guide rail: Y Push/pull door smooth & no wobble: Y, after rectification Door cyclic test 20x, DIR extinguish ok: Y, after rectification TIMS door static timing test pass: Y, after rectification Door lock switch red line flush with surface for positive latching: Y Door close switch actuating plate distance ok: Y Door gap (criteria 63mm+1.5mm): 63.6mm Replaced #1656 A2 all rollers to iron rollers.  Sarma/Alan/Kamarul/Anand/Shafie 45295