Train doors at rear M1 car were not proven closed. TC opened and closed a few times to clear fault.  ~~~~~ Check Tims FC: 023 on #1612-A1 door. Checked no FOD. Mating strip within criteria. Push pull gauge also within criteria. J-rail & bottom guide rail checked ok & clean. Door cycle x50 times ok. N . DLS check ok. Done by Sanip/Faddzal/Koh. 21/07/20.