TC reported driving cab 3530 B-side cabdoor was not proven. TC tried to physical close B-side cab d oor but to avail. TC strap the B-side cab door - ok TC repor ted driving cab 3530 B-side cab door was not proven. TC trie ~~~~~ TC reported driving cab 3530 B-side cab     Check and found DIR light up intermittenly when cab doors are in closed position.Further check cab door sensing s/w NG (Gap to big) Readjusted cab door sensing s/w guiding rod and added shim (3mm) to limit s/w box. Perform function check satis.DIR able to light & extinguish when cab doors open/close. Done by Haikel/Hazig.  15/06/23