Train EB applied. Unable to set EB due to obstacle detected at Front DT car. TC opened and closed bo th side cab door to clear fault. Released EB -ok. ~~~~~ Train EB applied.                       00000000000000000000000000000000 0 Checked #3567 cab doors able to to latch & secure.Perormed tug test,no signs of DIR indication.Further check found #3567 cab door B/S was not positively latched,did not trigger DIR indication.Adjusted DSS & distance to accordingly trigger DIR when not positively latched.Door cyclic test ok.DIR able to illuminated and extinguish as required. Done by Arsuddin/Arthur Sam.  28/03/22