Train doors at rear M1 car 'B3' doors were not proven closed. TC opened and closed a few times to cl ear fault. ~~~~~ 1682 Train doors at B3 were not proven closed. TC opened and closed a few times to clear fault. CE check ok. OE request depot check.  1682 B3 door performed push/pull gauge test: Before cleaning : 7.8 kg.  After Cleaning : 6.2 kg Measured door rubber strips = 64 mm. Door distance measured = 1400 mm. Checked door open/close timings - OK. No FOD found at door guide rails. Performed door cyclic test 10x - OK. No door fault reoccurance.  Aminur/Zaidi/Isam/Khairul/Hairi 44360