Train EB was applied while departing station in Auto mode. Reset EB - ok. Fault recurred at CTH SB. Reset EB- ok. TC reported TIMS show 'Door close' lost. ATS a larm showed "Train door 0 status lost while the train is mov ~~~~~ 3624 EB applied while departing station in Auto mode. Reset EB - ok. Fault recurred at CTH SB.Reset EB - ok. TC reported TIMS show 'Door close' lost. ATS alarm showed "Train door 0 status lost while the train is move.  2623 & 2624 B4 door DCSS wire 2805 measured resistance range 2.4 ohm. Checked auto couplers on both M2 cars - OK. Limited movemnet & door operation test - OK. No fault indication lit up. OPS 20 raised to follow-up.  Ridzuwan/Tarmidzi 44112 To follow up rectify.  3624 B/s cab door found door limit s/w actuator plunger securing bolt loosed. Retightened the securing bolt firmly - Done. Door cyclic test & no DIR lit up when door was closed.  Chan SW/Hanafi    44113