Train kept EB applied when train departing. ATS showed train door open indication when train is depa rting. Unable to depart in all modes. TC operated DIRBS - ok . Train proceeded ATPM to BDK WB to disembark passengers. ~~~~~ 3510-Train kept EB applied when train departing. ATS showed train door open indication when train is departing. Unable to depart in all modes. TC operated DIRBS - ok. Train proceeded ATPM to BDK WB to disembark passengers.(L3) L3 509/510 checked all saloon doors sensing s/w (shaking wires) - OK. Checked both DT cars cab doors & found #3509 A/S plunger alignment to sensing s/w with a gap. Re-adjusted the plunger to the sensing s/w. Security/function test - OK. Cab door latch overlapping on both DT cars checked - OK.  Au TK 44600